Abstract
Vegetative anatomy ofBulbophyllum andersonii, Bulbophyllum dyerianum andBulbophyllum leopardianum has been studied. Stomata are hypostomatic and cyclocytic with 4–7 subsidiary cells. Twin stomata occur inBulbophyllum dyerianum. Hypodermis is present only inBulbophyllum andersonii. InBulbophyllum dyerianum mesophyll is differentiated into palisade and spongy parenchyma, whereas in.Bulbophyllum andersonii it is less differentiated. InBulbophyllum leopardianum mesophyll is homogeneous. InBulbophyllum andersonii andBulbophyllum dyerianum columnar or club-shaped water storage cells with multispiral cellulosic thickenings are present in mesophyll of leaf and cortex of pseudobulb. In roots ofBulbophyllum dyerianum andBulbophyllum leopardianum fibrous mats are present. In all these taxa vessels are absent but vessel-like tracheids are abundant.Bulbophyllum species developed many adaptive characters for conservation of water. On the basis of anatomical data it is concluded that the genusBulbophyllum is closely related toDendrobium.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ayensu E S and Williams N 1972 Leaf anatomy ofPalumbina andOdontoglossum subgenusOsmoglossum;Am. Orchid. Soc. Bull. 41 687–696
Benzing D H, Ott D W and Friedman W E 1982 Roots ofSobralia macranthan (Orchidaceae). Structure and functions of velamen-exodermis complex;Am. J. Bot. 69 608–614
Cheadle V I 1942 The occurrence and type of vessels in the various organs of the plant in the Monocotyledonae;Am. J. Bot. 29 441–450
Dressler R L and Dodson C N 1960 Classification and phylogeny in the Orchidaceae;Ann. Mo. Bot. Gard. 47 25–68
Hünecke G 1904 Zur Anatomie der Pleurothallidinae (Heidelberg: Horning und Berkenbush)
Johansen D A 1940 Plant Microtechnique (New York: McGraw-Hill Book Company)
Khasim S M 1987Anatomical studies in some Indian Orchidaceae, Ph.D. thesis, Nagarjuna University, Nagarjunanagar
Khasim S M and Mohana Rao P R 1985 Anatomical studies in relation to habitat tolerance in some epiphytic orchids; inThe Biology, Conservation and Culture of Orchids (ed.) S P Vij (New Delhi: Affiliated East-West Press) pp 49–57
Kaushik P 1983 Ecological and Anatomical Marvels of the Himalayan Orchids (New Delhi: Today and Tomorrow’s Printers and Publishers)
Mehra P N and Vij S P 1974 Some observations on ecological adaptations and distribution pattern of the East Himalayan Orchids;Am. Orchid Soc. Bull. 43 301–315
Möbius M 1887 Über den anatomischen Bau der Orchideenblatter und dessen Bedeutung fur das system dieser Familie;Jahrb. Wiss. Bot. 18 530–607
Mohana Rao P R and Khasim S M 1986 Leaf anatomy in relation to ecological adaptability of some Himalayan orchids;J. Swamy Bot. Cl. 3 9–13
Olatunji O H and Nengim R O 1980 Occurrence and distribution of tracheoidal elements in the Orchidaceae;Bot. J. Linn. Soc. London 80 357–370
Pridgeon A M, Stern W L and Benzing D H 1983 Tilosomes in Roots of Orchidaceae: Morphology and systematic position;Am. J. Bot. 70 1365–1377
Sass J E 1967Botanical Microtechnique 3rd edition (Ames, Iowa: Iowa State Univ. Press)
Seidenfaden G 1979 Orchid genera in Thailand VIII.Bulbophyllum Thou;Dan. Bot. Ark. 33 1–228
Solereder H and Meyer F J 1930Systematische Anatomie der Monokotyledonen VI. Microspermae (Berlin: Gebrüder Borntraeger)
Webber I E 1936 The woods of sclerophyllous and desert shrubs and desert plants of California;Am. J. Bot. 23 181–188
Williams N H 1974The value of plant anatomy in orchid taxonomy (Madellin: Proceedings of 7th World Orchid Conf.) pp 281–298
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mohana Rao, P.R., Khasim, S.M. Anatomy of three species ofBulbophyllum (Orchidaceae) with comments on their ecological adaptability and taxonomy. Proc. Indian Acad. Sci. 97, 391–397 (1987). https://doi.org/10.1007/BF03053565
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF03053565