Abstract
Taxonomic relationships betweenCalamagrostis langsdorffii andC. sachalinensis were investigated in connection with the discovery that a considerable number of plants intermediate between these species occur in the high mountains of central Honshu. The studies were mainly carried out on the basis of cytological voucher specimens for which a chromosome number was known. Their morphological features, leaf flavonoids and pollen grains were subjected to examination. Hybridization, polyploidy and gametophytic apomixis are related to the organization of this complex, and plants referable to the “intermediates” are apomictic octoploids superimposed on the ancestral and sexual tetraploid taxa. The internal structure of this complex is discussed together with its probable course of evolution, and a diagram showing the outline of the structure is presented. The variability of morphological features and flavonoid patterns of the plants concerned is examined, and the delimitation ofC. langsdorffii andC. sachalinensis is made clearer.
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References
Babcock, E.B. and G.L. Stebbins. 1938. The American species ofCrepis: their relationships and distribution as affected by polyploidy and apomixis. Carnegie Inst. Washington, Publ. No. 504.
Barber, G.A. 1962. Enzymic glycosylation of quercetin to rutin. Biochemistry1: 463–468.
Conn, E.E. 1964. Enzymology of phenolic biosynthesis.In: J.B. Harborne, ed., Biochemistry of Phenolic Compounds p. 399–435. Academic Press, London.
Grant, V. 1971. Plant Speciation. Columbia University Press, New York.
Henderson, D.M. 1976. A biosystematic study of Pacific Northwestern blue-eye grasses (Sisyrinchium, Iridaceae). Brittonia28: 149–176.
Hiraoka, A. andM. Hasegawa. 1975. Flavonoid glycosides from fiveCyathea species. Bot. Mag. Tokyo88: 127–130.
Hopkinson, S.M. 1969. The chemistry and biochemistry of phenolic glycosides. Quart. Rev. Chem. Soc. Lond.23: 98–124.
Levy, M. andD.A. Levin. 1974. Novel flavonoids and reticulate evolution in thePhlox pilosa-P. drummondii complex. Amer. J. Bot.61: 156–167.
Nygren, A. 1946. The genesis of some Scandinavian species ofCalamagrostis. Hereditas32: 131–262.
— 1949. Apomictic and sexual reproduction inCalamagrostis purpurea. Hereditas35: 285–300.
— 1951. Form and biotype formation inCalamagrostis purpurea. Hereditas37: 519–532.
— 1954a. Apomixis in the Angiosperms, II. Bot. Rev.20: 577–649.
— 1954b. Investigations on North AmericanCalamagrostis, I. Hereditas40: 377–397.
— 1958. Investigations on North AmericanCalamagrostis, II. Kungl. Lantbrukshögskolans Annaler24: 363–368.
Stebbins, G.L. 1950. Variation and Evolution in Plants. Columbia University Press, New York.
Tateoka, T. 1972. Cytotaxonomic studies ofCalamagrostis sachalinensis and its relatives in Mt. Shiomidake. Bull. Natn. Sci. Mus. Tokyo15: 461–473.
— 1973. A taxonomic study of the genusCalamagrostis on Mount Yakeishidake. Bot. Mag. Tokyo86: 103–120.
— 1974a. Phytogeographical studies ofCalamagrostis sacchalinensis (Gramineae). I. Attributes of infraspecific races. Bot. Mag. Tokyo87: 133–147.
— 1974b. Phytogeographical studies ofCalamagrostis sachalinensis (Gramineae). II. Origin and dispersal. Bot. Mag. Tokyo87: 149–164.
— 1974c. A cytotaxonomic study of theCalamagrostis purpurea—langsdorffii—canadensis complex in the lowlands of Hokkaido. Bot. Mag. Tokyo87: 237–251.
— 1976. Chromosome numbers of the genusCalamagrostis in Japan. Bot. Mag. Tokyo89: 99–114.
— 1977. Natural hybridization in JapaneseCalamagrostis. I. Several interspecific combinations in central Honshu. Bot. Mag. Tokyo90: 103–128.
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Tateoka, T., Hiraoka, A. & Tateoka, T.N. Natural hybridization in JapaneseCalamagrostis . Bot. Mag. Tokyo 90, 193–209 (1977). https://doi.org/10.1007/BF02488357
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DOI: https://doi.org/10.1007/BF02488357