Abstract
The inflorescence apex is stratified and has a single layered tunica, bracts as well as all the floral organs develop acropetally. Except for stamens which are initiated with the activity of deeper layers of apex, all other floral appendages are initiated with the activity of second layer. On the basis of ontogenetic studies the floral organs have been homologised with the leaves. The adjacent calyx lobes develop and remain closely appressed and do not show post-genital fusion. Corolla tube is formed due to zonal growth preceeded by joint growth of hump on the abaxial face of stamen primordia and interprimordial region between petal primordia. Thus no post-genital fusion was observed. The placentae develop concomitantly with carpellary wall.
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References
Barnard, C. 1957a. Floral histogenesis in monocotyledons. I. The Gramineae. Aust. J. Bot.5: 1–20.
— 1957b. Floral histogenesis in monotyledons. II. The Cyperaceae. Aust. J. Bot.5: 115–128.
— 1958. Floral histogenesis in monocotyledons. III. The Juncaceae. Aust. J. Bot.6: 285–298.
— 1960. Floral histogenesis in monocotyledons. IV. The Juncaceae. Aust. J. Bot.8: 213–225.
Baum, H. 1948. Über die postgenitale Verwachsung in Karpellen. Österreich Bot. Z.95: 86–94.
Boke, N.H. 1948. Development of the perianth inVinca rosea L. Amer. J. Bot.35: 413–423.
— 1949. Development of the stamens and carpels inVinca rosea L. Amer. J. Bot.36: 535–547.
Cusick, F. 1966. On phylogenetic and ontogenetic fusions.In: E.G. Cutter, ed., Trends in Plant Morphogenesis p. 170–183. Longmans, London.
Daniel, E. andR. Sattler. 1978. Development of perianth tube ofSolanum dulcamara; Implications for comparative morphology. Phytomorphology28: 151–171.
Davis, G.L. 1966. Systematic Embryology of the Angiosperms. John Wiley, New York.
Eames, A.J. 1961. Morphology of the Angiosperms. McGraw Hill, New York.
Engard, C.J. 1944. Organogenesis inRubus. Res. Publ. Univ. Hawaii, no. 21, Honolulu.
Kaplan, D.R. 1968. Structure and development of the perianth inDowningia bacigalupii. Amer. J. Bot.55: 406–420.
Leins, P. 1964. Das Zentripetale und zentrifugale Androecium. Ber. Deutsch. Bot. Ges.77: 22–26
— andV. Gemmeke. 1979. Infloreszenz-und Blütenentwicklung bei der kugeldistelEchinops exaltatus (Asteraceae). Pl. Syst. Evol.132: 189–204.
McCoy, R.W. 1940. Floral organogenesis inFrasera caroliniensis. Amer. J. Bot.27: 600–609.
Merxmuller, H. andP. Leins 1967. Die Verwandtschaftsbeziehungen der Kreuzblutler und Mohngewächse. Bot. Jb.86: 113–129.
Miller, H.A. andR.H. Wetmore. 1946. Studies in the developmental anatomy ofPhlox drummondii Hook II. The apices of the mature plant. Amer. J. Bot.33: 1–10.
Murty, Y.S. andV. Kumar. 1972. Vegetative to reproductive state of apex in Monocotyledons.In: Y.S. Murtyet al., ed., Advances in Plant Morphology. p. 291–303. Sarita Prakashan, Meerut.
Nishino, E. 1976. Developmental anatomy of foliage leaves, bracts, calyx and corolla inPharbitis nil. Bot. Mag. Tokyo69: 191–209.
— 1978. Corolla tube formation in four species of Solanaceae. Bot. Mag. Tokyo91: 263–277.
— 1982. Corolla tube formation in six species of Apocyanaceae. Bot. Mag. Tokyo95: 1–17.
Puri, V. 1952. Placentation in angiosperms. Bot. Rev.18: 603–651.
Robyns, A. 1955. Morphologie en morphogenese van het bloemappart bijCentaurium minus car. en.,C. vulqare Rafn. Verhandl. kon. Vlaamse. Acad. Wetaensch. Lett. Schonekunst. Van Palgie Klasse Wetensch.51: 1–85.
Satina, S. andA.F. Blakeslee. 1941. Periclinal chimeras inDatura stramonium in relation to development of leaf and flower. Amer. J. Bot.28: 862–871.
——. 1943. Periclinal chimeras inDatura stramonium in relation to development of carpel. Amer. J. Bot.30: 453–462.
Sattler, R. 1977. Kronröhrenentstehung beiSolanum dulcamara L. und ‘kongenitale Verwachsung’. Ber. Deutsch. Bot. Ges.90: 29–38.
Sharman, B.C. 1960. Developmental anatomy of the stamen and carpel primordia inAnthoxanthum odoratum. Bot. Gaz.121: 192–198.
Singh, V. 1979. Early floral development inDigitalis purpurea. Phytomorphology29: 239–245.
— andD.K. Jain 1975. Floral development ofJusticia gendarussa (Acanthaceae). Bot. J. Linn. Soc.70: 243–253.
—— 1979. Floral organogenesis ofAntirrhinum majus L. (Scrophulariaceae). Proc. Indian Acad. Sci.88: 183–188.
Soetiarto, S.R. andE. Ball. 1969. Ontogenetical and experimental studies of the floral apex ofPortulaca grandiflora. II. Bisection of the meristem in successive stages. Can. J. Bot.47: 1067–1076.
Takhtajan, A.D. 1959. Die Evolution der Angiospermen. Gustav Fischer, Jena.
— 1969. Flowering Plants: Origin and Dispersal (translation from Russian by C. Jeffrey). Oliver and Boyd, Edinburgh.
Tepfer, S.S. 1953. Floral anatomy and ontogeny inAquilegia formosa var. truncata andRanunculus repens. Univ. Calif. Publ. Bot.25: 513–648.
Tucker, S.C. 1972. The role of ontogenetic studies in floral morphology.In: Y.S. Murtyet al., ed., Advances in Plant Morphology p. 354–369. Sarita Prakashan, Meerut.
Zimmermann, W. 1959. Die Phylogenie der Pflanzen. Gustav Fischer, Stuttgart.
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Awasthi, D.K., Kumar, V. & Murty, Y.S. Flower development inAntirrhinum majus L. (Scrophulariaceae) with a comment upon corolla tube formation. Bot. Mag. Tokyo 97, 13–22 (1984). https://doi.org/10.1007/BF02488143
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DOI: https://doi.org/10.1007/BF02488143