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Natural hybridization with particular reference to introgression

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Literature Cited

  • Allan, H. H. The significance of hybridism in the New Zealand Flora. Rep. 20th Meet. Aust. & N. Z. Assn. Adv. Sci.20: 429–477. 1931.

    Google Scholar 

  • — Wild species-hybrids in the phanerogams. Bot. Rev.3: 593–615. 1937.

    Google Scholar 

  • — The nomenclature of hybrids. Chron. Bot.5: 205–209. 1939.

    Google Scholar 

  • -. Natural hybridization in relation to taxonomy.In J. Huxley, The New Systematics. Pp. 515–528. 1940.

  • — Wild species-hybrids in the phanerogams. II. Bot. Rev.15: 77–105. 1949.

    Google Scholar 

  • Allard, H. A. A progeny study of the so-called oak speciesQuercus saulii, with notes on other probable hybrids found in or near the District of Columbia. Bull. Torrey Bot. Club59: 267–277. 1932.

    Article  Google Scholar 

  • Anderson, E. An experimental study of hybridization in the genusApocynum. Ann. Mo. Bot. Gard.23: 159–168. 1936a.

    Article  Google Scholar 

  • — The species problem inIris. Ann. Mo. Bot. Gard.23: 457–509. 1936b.

    Article  Google Scholar 

  • — Hybridization in American Tradescantias. Ann. Mo. Bot. Gard.23: 511–525. 1936c.

    Article  Google Scholar 

  • — A morphological comparison of triploid and tetraploid interspecific hybrids inTradescantia. Genetics21: 61–65. 1836d.

    Google Scholar 

  • — Recombination in species crosses. Genetics24: 668–698. 1939a.

    PubMed  CAS  Google Scholar 

  • — The hindrance to gene recombination imposed by linkage: An estimate of its total magnitude. Am. Nat.73: 185–188. 1939b.

    Article  Google Scholar 

  • — The technique and use of mass collections in plant taxonomy. Ann. Mo. Bot. Gard.28: 287–292. 1941.

    Article  Google Scholar 

  • — The hybridization of the habitat. Evolution2: 1–9. 1948.

    Article  Google Scholar 

  • -. Introgressive hybridization. Biol. Mem. 1949.

  • — andD. G. Diehl. Contributions to theTradescantia problem. Jour. Arn. Arb.8: 213–231. 1932.

    Google Scholar 

  • — andL. Hubricht. Hybridization inTradescantia. III. The evidence for introgressive hybridization. Am. Tour. Bot.25: 396–402. 1938a.

    Article  Google Scholar 

  • ——. The American sugar maples. I. Phylogenetic relationship as deduced from a study of leaf variation. Bot. Gaz.100: 312–323. 1838b.

    Article  Google Scholar 

  • — andK. Sax. A cytological monograph of the American species ofTradescantia. Bot. Gaz.97: 433–476. 1936.

    Article  Google Scholar 

  • — andW. B. Turrill. Biometrical studies on herbarium material. Nature136: 986. 1935.

    Article  Google Scholar 

  • ——. Statistical studies on two populations ofFraxinus. New Phyt.37: 160–172. 1938.

    Article  Google Scholar 

  • — andR. E. Woodson, Jr. The species ofTradescantia indigenous to the United States. Contr. Am. Arb.9: 1–132. 1935.

    Google Scholar 

  • Babcock, E. B. Cyto-genetics and the species-concept. Am. Nat.65: 5–18. 1931.

    Article  Google Scholar 

  • -. Cytogenetics and speciation inCrepis.In M. Demerec, Advances in Genetics, Vol.1: 69–93. 1947.

  • Baker, H. G.Melandrium. Jour. Ecol.35: 271–283. 1947.

    Article  Google Scholar 

  • — Criteria of hybridity. Nature159: 221–223. 546. 1947.

    Article  Google Scholar 

  • Baldwin, J. T., Jr.Hevea: a first interpretation. Jour. Hered.38: 54–64. 1947.

    Google Scholar 

  • Benedict, R. C. Problems and objectives in the study of fern hybrids. Am. Fern Jour.35: 65–76. 1945.

    Article  Google Scholar 

  • Black, J. D. andL. O. Williamson. Artificial hybrids between muskellunge and northern pike. Trans. Wis. Acad. Sci.38: 299–314. 1946.

    Google Scholar 

  • Black, R. A. Description of a new eucalypt hybrid. X.Eucalyptus radiodives (“Buttercup Peppermint”) (radiata ×dives) R. A. Black, hybrid nov. Victorian Nat.60: 175. 1944.

    Google Scholar 

  • Blair, A. P. Variation, isolating mechanisms, and hybridization in certain toads. Genetics26: 398–417. 1941a.

    PubMed  CAS  Google Scholar 

  • — Isolating mechanisms in tree frogs. Proc. Nat. Acad. Sci.27: 14–17. 1941b.

    Article  PubMed  CAS  Google Scholar 

  • — Isolating mechanisms in a complex of four species of toads. Biol. Symp.6: 235–249. 1942.

    Google Scholar 

  • Booker, L. E. andR. M. Tryon. A study ofElymus in Minnesota. Rhodora50: 80–91. 1948.

    Google Scholar 

  • Brainerd, E. Hybridism in the genusViola. II. Rhodora8: 6–10. 1906.

    Google Scholar 

  • Brett, R. G. A survey of Eucalypt species in Tasmania. Pap. & Proc. Royal Soc. Tasmania1937: 76–109. 1938.

    Google Scholar 

  • Butters, F. K. andE. C. Abbe. The genusPoa in Cook County, Minnesota. Rhodora49: 1–21. 1947.

    Google Scholar 

  • Cain, S. A. Foundations of plant geography. 1944.

  • Camp, W. H. Studies in the Ericales. A discussion of the genusBefaria in North America. Bull. Torrey Bot. Club68: 100–111. 1941.

    Article  Google Scholar 

  • — On the structure of populations in the genusVaccinium. Brittonia4: 189–204. 1942.

    Article  Google Scholar 

  • — Cinchona at high altitudes in Ecuador. Brittonia6: 394–430. 1948.

    Article  Google Scholar 

  • — andC. L. Gilly. The structure and origin of species. Brittonia4: 323–385. 1943.

    Article  Google Scholar 

  • Castle, W. E. Genes which divide species or produce hybrid vigor. Proc. Nat. Acad. Sci.32: 145–149. 1946.

    Article  PubMed  CAS  Google Scholar 

  • Chapin, J. P. Variation and hybridization among the paradise flycatchers of Africa. Evolution2: 111–126. 1948.

    Article  Google Scholar 

  • Clausen, J. Studies on the collective speciesViola tricolor L. II. Bot. Tidsk.37: 363–416. 1922.

    Google Scholar 

  • —,et al. The concept of species based on experiment. Am. Jour. Bot.26: 103–106. 1939.

    Article  Google Scholar 

  • —,et al. Experimental studies on the nature of species. I. Effect of varied environments on western North American plants. Carnegie Inst. Wash., Pub.520: 1–452. 1940.

    Google Scholar 

  • —,et al. Experimental studies on the nature of species. II. Plant evolution through amphiploidy and autoploidy, with examples from the Madiinae. Carnegie Inst. Wash., Pub.564: 1–174. 1945.

    Google Scholar 

  • —,et al. Heredity of geographically and ecologically isolated races. Am. Nat.81: 114–133. 1947.

    Article  CAS  PubMed  Google Scholar 

  • Cleland, R. E. The problem of species inOenothera. Am. Nat.78: 5–28. 1944.

    Article  Google Scholar 

  • Cockayne, L. Hybridism in the New Zealand flora. New Phyt.22: 105–127. 1923.

    Article  Google Scholar 

  • -. Hybridism in the forests of New Zealand. Acta Forest. Fenn.34: 23 pp. 1929.

  • — andH. H. Allan. An annotated list of groups of wild hybrids in the New Zealand flora. Ann. Bot.48: 1–55. 1934.

    Google Scholar 

  • Cole, L. J. andR. M. Shackelford. Fox hybrids. Trans. Wis. Acad. Sci.38: 315–332. 1946.

    Google Scholar 

  • Crane, M. B. The origin and behavior of cultivated plants.In J. Huxley, The New Systematics. Pp. 529–547. 1939.

  • Cugnac, A. de Sur les conséquences systématiques de la dominance et de recéssivité des caractères spécifiques dans les croisements. Compt. Rend. Acad. Sci. Paris211: 268–270. 1940.

    Google Scholar 

  • Dansereau, P. Études sur les hybrides de Cistes. III. Statistiques des caractères duCistus monspeliensis L. Bull. Soc. Bot. France85: 668–678. 1938.

    Google Scholar 

  • — Monographie du genreCistus L. Boissiera4: 1–90. 1939a.

    Google Scholar 

  • — Sens de l’hybridation dans le genreCistus. Ber. Schweiz. Bot. Ges.49: 412–413. 1939b.

    Google Scholar 

  • — Definizione del genereHalimiocistus. Nuovo Gior. Bot. Ital.46: 357–360. 673. 1939c.

    Google Scholar 

  • — Études sur les hybrides de Cistes. Ann. Épiphyt. et Phytogén.6: 7–26. 1940.

    Google Scholar 

  • — Études sur les hybrides de Cistes. IV. Correlation des caractères duC. salviifolius L. VI. Introgression dans la section Ladanium. Canad. Jour. Res., C.,19: 27–39. 59–67. (Contr. Inst. Bot. Univ. Montreal, 38.) 1941.

    Google Scholar 

  • — Études sur les hybrides de Cistes. V. Le comportement dux C. florentinus Lam. Candollea10: 9–22. 1943.

    Google Scholar 

  • — andY. Desmarais. Introgression in sugar maples. II. Am. Midl. Nat.37: 146–161. 1947.

    Article  Google Scholar 

  • — andA. Lafond. Introgression des caractères del’Acer saccharophorum K. Koch et del’Acer nigrum Michx. Contr. Inst. Bot. Univ. Montreal37: 15–31. 1941.

    Google Scholar 

  • Darrow, G. M. andW. H. Camp.Vaccinium hybrids and the development of new horticultural material. Bull. Torrey Bot. Club72: 1–21. 1945.

    Article  Google Scholar 

  • Darlington, C. D. What is a hybrid? Jour. Hered.28: 308. 1937a.

    Google Scholar 

  • -. Recent advances in cytology. 2nd ed. 1937b.

  • - andE. K. Janaki Ammal. Chromosome atlas of cultivated plants. 1945.

  • Darwin, C. The origin of species. 6th ed. 1872.

  • Davidson, J. F. The polygonal graph for simultaneous portrayal of several variables in population analysis. Madroño9: 105–110. 1947.

    Google Scholar 

  • Dobzhansky, Th. Genetics and the origin of species. Rev. ed.1941.

  • Du Rietz, G. E. The fundamental units of biological taxonomy. Svensk. Bot. Tidskr.24: 333–428. 1930.

    Google Scholar 

  • Elliott, F. C Cross-fertility and cytogenetics of selectedBromopsis section members within the genusBromus L. [Unpubl.]

  • Epling, C. Actual and potential gene flow in natural populations. Am. Nat.81: 104–113. 1947a.

    Article  CAS  PubMed  Google Scholar 

  • — Natural hybridization ofSalvia apiana andS. mellifera. Evolution1: 69–78. 1947b.

    Article  Google Scholar 

  • Erickson, R O. TheClematis Fremontii var.Riehlii population in the Ozarks. Ann. Mo. Bot. Gard.32: 413–460. 1945.

    Article  Google Scholar 

  • Fagerlind, F. Embryologische, cytologishe und bestäubungsexperimentelle Studien in der Familie Rubiaceae nebst Bemerkungen über einige Polyploidistätsprobleme. Acta Horti Bergiana11: 195–470. 1937.

    Google Scholar 

  • Fassett, N. C.Juniperus virginiana, J. horizontalis, andJ. scopulorum. I. The specific characters. Bull. Torrey Bot. Club71: 410–418. 1944. II. Hybrid swarms ofJ. virginiana andJ. scopulorum. ibid. 475–483. III. Possible hybridization ofJ. horizontalis andJ. scopulorum. ibid.72: 42–46. 1945. IV. Hybrid swarms ofJ. virginiana andJ. horizontalis. ibid. 379–384. V. Taxonomic treatment.ibid. 480–482.

    Article  Google Scholar 

  • Focke, W. O. Die Pflanzenmischlinge, ein Beitrag zur Biologie der Gewächse. 1881.

  • Fosberg, F. R. Taxonomy and hybridism. Chron. Bot.5: 397–398. 1939.

    Google Scholar 

  • — For an open-minded taxonomy. Chron. Bot.6: 368–370. 1941.

    Google Scholar 

  • Foster, R. C. A cyto-taxonomic survey of the North American species ofIris. Contr. Gray Herb. No. 119: 3–82. 1937.

  • Friesner, R. C. TwoSolidago hybrids worthy of names. Butler Univ., Bot. Stud.6: 81–83. 1943.

    Google Scholar 

  • {saGoldschmidt, R.} The material basis of evolution. 1940.

  • Goodspeed, T. H. andM. V. Bradley. Amphidiploidy. Bot. Rev.8: 271–316. 1942.

    Google Scholar 

  • Goodwin, R. H. Notes on the distribution and hybrid origin ofx Solidago asperula. Rhodora39: 22–28. 1937a.

    Google Scholar 

  • — The cytogenetics of two species ofSolidago and its bearing on their polymorphy in nature. Am. Jour. Bot.24: 425–432. 1937b.

    Article  Google Scholar 

  • Gordon, M. Interchanging genetic mechanisms for sex determination. Jour. Hered.37: 307–320. 1946a.

    CAS  Google Scholar 

  • — Introgressive hybridization in domesticated fishes. I. The behavior of comet, aPlatypoecilus maculatus gene inXiphophorus helleri. Zoologica30: 77–88. 1946b.

    Google Scholar 

  • -. Speciation in fishes. Distribution in time and space of seven dominant multiple alleles inPlatypoecilus maculatus.In M. Demerec, Advances in Genetics Vol.1: 95–132. 1947.

  • Griggs, R. F. Hybridity as a factor in evolution. Jour. Wash. Acad. Sci.27: 329–343. 1937.

    Google Scholar 

  • Harland, S. C. The genetical conception of the species. Biol. Rev.11: 83–112. 1936.

    Article  Google Scholar 

  • — The genetics of cotton. XVII. Increased mutability of a gene inG. purpurascens as a consequence of hybridization withG. hirsutum. Jour. Genet.34: 153–168. 1937.

    Google Scholar 

  • Heiser, C. B., Jr. Hybridization between the sunflower speciesHelianthus annuus andH. petiolaris. Evolution1: 249–262. 1947.

    Article  Google Scholar 

  • — An evolutionary study of the sunflower speciesHelianthus annuus andH. Bolanderi. Univ. Calif. Publ. Bot.23: 157–208. 1949.

    Google Scholar 

  • — andT. W. Whitaker. Chromosome number, polyploidy, and growth habit in California weeds. Am. Jour. Bot.35: 179–186. 1948.

    Article  Google Scholar 

  • Hiorth, G. Genetische Versuche mitCollinsia. IV. Die Analyse eines nahezu sterilen Artbastardes. I. Teil. Die diploiden Bastarde zwischenCollinsia bicolor undC. bartisaefolia. Zeits. Ind. Abst. Vererb.66: 106–157. 1933.

    Article  Google Scholar 

  • Hovanitz, W. Ecological segregation of interfertile species ofColias. Ecology29: 461–469. 1948.

    Article  Google Scholar 

  • Hubbs, C. L. Speciation of fishes. Am. Nat.74: 198–211. 1940.

    Article  Google Scholar 

  • — andL. C. Hubbs. Natural hybrids between two species of Catostomid fishes. Pap. Mich. Acad.31: 147–167. 1945.

    Google Scholar 

  • -,et al. Hybridization in nature between species of Cantostomid fishes. Contr. Lab. Vert. Biol. Univ. Mich. No.22: 1–76. 1943.

  • — andK. Kuronuma. Hybridization in nature between two genera of flounders in Japan. Pap. Mich. Acad. Sci.27: 267–306. 1941.

    Google Scholar 

  • — andR. R. Miller. Mass hybridization between two genera of Cyprinid fishes in the Mohave desert, California. Pap. Mich. Acad. Sci.28: 343–378. 1942.

    Google Scholar 

  • -,et al. Hybridization in nature between species of American Cyprinodont fishes. Contr. Lab. Vert. Biol. Univ. Mich. No.23: 1–21. 1943.

  • Hubricht, L. andE. Anderson. Vicinism inTradescantia. Am. Jour. Bot.28: 957. 1941.

    Article  Google Scholar 

  • Huskins, C. L. Criteria of hybridity. Science69: 399–400. 1929.

    Article  PubMed  CAS  Google Scholar 

  • Hutchinson, J. B.et al. The Evolution ofGossypium, and the differentiation of the cultivated cottons. 1947.

  • Koelreuter, J. G. Vorläufige Nachricht von einigen das Geschlecht der Pflanzen. (1761–1766). Ost. Klas. Exak. Wiss.41. 1893.

  • Larisey, M. M. Analysis of a hybrid complex betweenBaptisia leucantha andBaptisia viridis in Texas. Am. Jour. Bot.27: 624–628. 1940.

    Article  Google Scholar 

  • Lamprecht, H. Die Artgrenze zwischenPhaseolus vulgaris L. undmultiflorus Lam. Hereditas27: 51–175. 1941.

    Article  Google Scholar 

  • — Die genisch-plasmatische Grundlage der Artbarriere. Agr. Hort. Genet.2: 75–142. 1944.

    Google Scholar 

  • — Intra- and inter-specific genes. Agr. Hort. Genet.3: 45–60. 1945.

    Google Scholar 

  • Lewis, H. andC. Epling. Formation of a diploid species ofDelphinium byhybridization. Am. Jour. Bot.23: 21s-22s. 1946. [Abs.]

    Google Scholar 

  • Lotsy, J. P. Evolution by means of hybridization. 1916.

  • -. Evolution considered in the light of hybridization. 1925.

  • McMinn, H. E. The importance of field hybrids in determining species in the genusCeanothus. Proc. Calif. Acad. Sci.25: 323–356. 1944.

    Google Scholar 

  • Mangelsdorf, P. C. The origin and evolution of maize.In M. Demerec, Advances in genetics Vol.1: 161–207. 1947.

  • — andR. G. Reeves. The origin of Indian corn and its relatives. Texas Agr. Exp. Sta., Bull.574: 1–315. 1939.

    Google Scholar 

  • Marsden-Jones, E. M. The genetics ofGeum intermedium Willd. haud Ehrh. and its back-crosses. Jour. Genet.23: 377–395. 1930.

    Article  Google Scholar 

  • et al. Special herbaria as adjuncts to modern botanical research. Jour. Ecol.18: 379–383. 1930.

    Article  Google Scholar 

  • - andW. B. Turrill. Researches onSilene maritima andS. vulgaris. I-XXVI. Kew Bull. 1928–1947.

  • ——. Species studies in plants. Rep. Bot. Exchange Cl.1930: 416–420. 1930a.

    Google Scholar 

  • - and -. Hybridization in certain genera of the British Flora. [Abs.] Proc. Linn. Soc. London. 141st sess., p. 36. 1930b.

  • ——. Genetical studies inCentaurea scabiosa L. andCentaurea collina L. Jour. Genet.34: 487–495. 1937.

    Google Scholar 

  • Mason, H. L. Evidence from the fossil record and from the modern distribution for the genetic submergence ofPinus remorata byPinus muricata. [Abs.] Committee on Geology and Geography, Rep. of the Subcommittee on Common Problems of Genetics and Paleontology (mimeographed). Nat. Res. Council. 1942.

  • Mayr, E. Systematics and the Origin of species. 1942.

  • -. The bearing of the new systematics on genetical problems. The nature of species.In M. Demerec, Advances in genetics. Vol.2: 205–237. 1948.

  • Moore, J. A. Incipient intraspecific isolating mechanisms inRana pipiens. Genetics31: 304–326. 1946.

    PubMed  CAS  Google Scholar 

  • Moss, C. E. Some natural hybrids ofClematis, Anemone, andGerbera from the Transvaal. [Abs.] Proc. Linn. Soc. Lond., 141st sess., pp. 36–38. 1930.

  • Myers, W. M. Cytology and genetics of forage grasses. Bot. Rev.13: 319–421. 1947.

    Article  Google Scholar 

  • Ogden, E. C. The broad-leaved species ofPotamogeton of North America north of Mexico. Rhodora45: 57–105, 119–163, 171–214. 1943.

    Google Scholar 

  • Ostenfeld, C. H. The present state of knowledge on hybrids between species of flowering plants. Masters Lectures, 1927. Jour. Royal Hort. Soc.53: 31–44. 1928.

    Google Scholar 

  • Ownbey, M. A monograph of the genusCalochortus. Ann. Mo. Bot. Gard.27: 371–560. 1940.

    Article  Google Scholar 

  • — andW. A. Weber. Natural hybridization in the genusBalsamorhiza. Am. Jour. Bot.30: 179–187. 1943.

    Article  Google Scholar 

  • Pettersson, B. On some hybrid populations ofOrchis incarnata ×maculata in Gotland. Svensk Bot. Tidskr.41: 115–140. 1947.

    Google Scholar 

  • Popov, M. G. The geographic-morphological method of systematics and the hybridization process in nature. Bull. Appl. Bot., Genet. & Pl. Breed.171: 221–290. 1927. [Eng. summary.]

    Google Scholar 

  • Reeves, R. G. andP. C. Mangelsdorf. A proposed taxonomic change in the tribe Maydeae (family Gramineae). Am. Jour. Bot.29: 815–817. 1942.

    Article  Google Scholar 

  • Rickett, H. W. andW. H. Camp. The nomenclature of hybrids. Bull. Torrey Bot Club75: 496–501. 1948.

    Article  Google Scholar 

  • Riley, H. P. A. character analysis of colonies ofIris fulva, I. hexagona var.giganticaerulea and natural hybrids. Am. Tour. Bot.25: 727–738. 1938.

    Article  Google Scholar 

  • -. The problem of species in Louisiana Irises. Bull. Am. Iris Soc. July. 5 pp. 1939a.

  • — Pollen fertility inIris. Jour. Hered.30: 481–483. 1939b.

    Google Scholar 

  • — Introgressive hybridization in a natural population ofTradescantia. Genetics24: 753–769. 1939c.

    PubMed  CAS  Google Scholar 

  • -. Introduction to genetics and cytogenetics. 1948.

  • Roberts, H. F. Plant hybridization before Mendel. 1929.

  • Rollins, R. C. Evidence for natural hybridity between guayule (Parthenium argentatum) and mariola (Parthenium incanum). Am. Jour. Bot.31: 93–99. 1944.

    Article  Google Scholar 

  • — Some known and probable levels of reciprocal introgression between guayule (Parthenium argentatum) and mariola (P. incanum). [Abs.] Genetics30: 18–19. 1945a.

    Google Scholar 

  • — Interspecific hybridization inParthenium. I. Crosses between guayule (P. argentatum) and mariola (P. incanum). Am. Jour. Bot.32: 395–404. 1945b.

    Article  Google Scholar 

  • Ross, J. G. andR. E. Duncan. Cytological evidences of hybridization betweenJuniperus virginiana andJ. horizontalis. [Unpubl.]

  • Sauer, C. O. Early relations of man to plants. Geog. Rev.37: 1–25. 1947.

    Article  Google Scholar 

  • Sax, H. J. andK. Sax. The cytogenetics of generic hybrids ofSorbus. Jour. Arn. Arb.28: 137–140. 1947.

    Google Scholar 

  • Seibert, R. J. A study ofHevea (with its economic aspects) in the Republic of Peru. Ann. Mo. Bot. Gard.34: 261–352. 1947.

    Article  Google Scholar 

  • — The uses ofHevea for food in relation to its domestication. Ann. Mo. Bot. Gard.35: 117–121. 1948.

    Article  Google Scholar 

  • Showalter, H. M. The distribution ofTradescantia in the eastern Tennessee region. Jour. Tenn. Acad. Sci.13: 253–258. 1938.

    Google Scholar 

  • Small, J. K. andE. J. Alexander. Botanical interpretation of the iridaceous plants of the Gulf States. Contr. New York Bot. Gard. No. 327: 325–357. 1931.

  • Sprague, T. A. The nomenclature of hybrids. Chron. Bot.5: 209–212. 1939.

    Google Scholar 

  • Stebbins, G. L., Jr. The significance of polyploidy in plant evolution. Am. Nat.75: 54–66. 1940.

    Article  Google Scholar 

  • — The role of isolating mechanisms in the differentiation of plant species. Biol. Symp.6: 217–233. 1942.

    Google Scholar 

  • — The cytological analysis of species hybrids. II. Bot. Rev.11: 463–486. 1945.

    Article  Google Scholar 

  • -. Types of polyploids: their classification and significance.In M. Demerec, Advances in genetics1: 403–429. 1947a.

  • — Evidence of rates of evolution from the distribution of existing and fossil plant species. Ecol. Mon.17: 149–158. 1947b.

    Article  Google Scholar 

  • et al. Hybridization in a population ofQuercus marilandica andQuercus ilicifolia. Evolution1: 79–88. 1947.

    Article  Google Scholar 

  • Stephens, S. G. Cytogenetics ofGossypium and the problem of the origin of new world cottons.In M. Demerec, Advances in genetics, Vol. 1: 431–442. 1947.

  • Steyermark, C. S. Distribution and hybridization ofVernonia in Missouri. Bot. Gaz.100: 548–562. 1939.

    Article  Google Scholar 

  • Sweadner, W. R. Hybridization and the phylogeny of the genusPlatysamia. Ann. Carnegie Mus.25: 163–242. 1937.

    Google Scholar 

  • Turrill, W. B. The plant-life of the Balkan Peninsula. 1929.

  • — The correlation of morphological variation with distribution in some species ofAjuga. New Phyt.33: 218–230. 1934.

    Article  Google Scholar 

  • — The expansion of taxonomy with special reference to the Spermatophyta. Biol. Rev.13: 342–373. 1938.

    Article  Google Scholar 

  • — Taxonomy and phylogeny. Bot. Rev.8: 247–270; 473–532; 655–707. 1942.

    Article  Google Scholar 

  • — The ecotype concept. A consideration with appreciation and criticism, especially of recent trends. New Phyt.45: 34–43. 1946.

    Article  Google Scholar 

  • Uittien, H. Reflections on the nomenclature of so-called hybrids. Chron. Bot.5: 212–214. 1939.

    Google Scholar 

  • Valentine, D. H. Studies in British primulas. I. Hybridization between primrose and oxlip (Primula vulgaris Huds, andP. elatior Schreb.) New Phyt.46: 229–253. 1947.

    Article  Google Scholar 

  • — Studies in British primulas. II. Ecology and taxonomy of primrose and oxlip (Primula vulgaris Huds. andP. elatior Schreb.) New Phyt.47: 111–130. 1948.

    Article  Google Scholar 

  • Viosca, P. Jr. The irises of southeastern Louisiana. A taxonomic and ecological interpretation. Bull. Am. Iris Soc., April, p. 3–56. 1935.

  • Weber, W. A. A taxonomic and cytological study of the genusWyethia, family Compositae, with notes on the related genusBalsamorhiza. Am. Mid. Nat.35: 400–542. 1946.

    Article  Google Scholar 

  • Wetmore, R. H. andA. L. Delisle. Studies in the genetics and cytology of two species in the genusAster and their polymorphy in nature. Am. Jour. Bot.26: 1–12. 1939.

    Article  Google Scholar 

  • Wiegand, K. M. A taxonomist’s experience with hybrids in the wild. Science81: 161–166. 1935.

    Article  PubMed  CAS  Google Scholar 

  • Winge, Ø. Artkrydsningproblemer i Planteriget. Beretning om Nord. Jordbrugsforsk. Foren. tredie Kongres, Oslo, pp. 592–606. 1926. [Not seen.]

  • -. The genetic aspect of the species problem. Proc. Linn. Soc. London, 150th sess., pp. 231–238. 1938.

  • Wolf, C. B. California plants notes.X. Quercus morehus Kellogg. Rancho Santa Ana Bot. Gard., Occas. Pap.1: 47–52. 1938.

    Google Scholar 

  • — The Gander oak, a new hybrid oak from San Diego County, California. Proc. Calif. Acad. Sci.25: 177–188. 1944.

    Google Scholar 

  • Woodson, R. E., Jr. Notes on some North American asclepiads. Ann. Mo. Bot. Gard.31: 363–370. 1944.

    Article  Google Scholar 

  • — Some dynamics of leaf variation inAsclepias tuberosa. Ann. Mo. Bot. Gard.34: 353–432. 1947.

    Article  Google Scholar 

  • Zirkle, C. The beginnings of plant hybridization. Morris Arb. Mono.1: 1–231. 1935.

    Google Scholar 

Recent papers of interest

  • Baker, H. G. Stages of invasion and replacement demonstrated by species ofMelandrium. Jour. Ecol.36: 96–119. 1948.

    Article  Google Scholar 

  • Baldwin, J. T. Jr. Review of Anderson’s “Introgressive Hybridization”. Jour. Hered.40: 256–257. 1949.

    Google Scholar 

  • Camp, W. H. Review of Anderson’s “Introgressive Hybridization”. Bull Torrey Bot. Club76: 369–372. 1949.

    Article  Google Scholar 

  • Elliott, F. C.Bromus inermis andB. pumpellianus in North America. Evolution3: 142–149. 1949.

    Article  Google Scholar 

  • Harrison, J. H. Field studies inOrchis L. I. The structure of Dactylorchid populations on certain islands in the Inner and Outer Hebrides. Trans. & Proc. Bot. Soc. Edinburgh35: 26–66. 1949.

    Google Scholar 

  • Hovanitz, W. Increased variability in populations following natural hybridization.In G. L. Jepsonet al, Genetics, Paleontology and Evolution. pp. 339–355. 1949.

  • Mason, H. L. Evidence for the genetic submergence ofPinus remorata. In G. L. Jepsenet al, Genetics, Paleontology and Evolution. pp. 356–362. 1949.

  • Rickett, H. W. An editor’s point of view.In Symposium on Botanical Nomenclature. Am. Jour. Bot.36: 10–13. 1949.

    Article  CAS  Google Scholar 

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Heiser, C.B. Natural hybridization with particular reference to introgression. Bot. Rev 15, 645–687 (1949). https://doi.org/10.1007/BF02861577

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