LM and SEM Studies on Stomatal Morphotypes, Epidermal Characteristics and Spore Morphology of Some Indian Species of Cheilanthes Sw
by Sen K., Mukhopadhyay R. (2011)
in Biores. Bull., 5: 304-310. –
Abstract
Background:
Cheilanthes is a large and diverse genus with 150 species having worldwide distribution. In India, Cheilanthes is represented by about 27 species. The delineation of one species of Cheilanthes from the other is sometimes difficult on the basis of visible morphologiocal characters alone.
Observation:
In the present paper, mature stomatal morphotypes, venation pattern, epidermal characteristics including hairs and scales, farinose characters, sporangial and spore characters of five species of Cheilanthes viz., C. albomarginata Clarke, C.argentea (Gmel) Kunze, C. chrysophylla Hook., C. rufa D. Don and C. pseudofarinosa (Ching & S.K.Wu) Iwats have been studied under light and Scanning Electron Microscope to
bring out their more finer differences which will help delineation of the members easily.
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Stomatal structure and its ontogeny play important role in taxonomy have been suggested by a number of workers (Kondo, 1962; Pant, 1965; Mickel and Lersten, 1967; Van Cotthem, 1970 a, b, 1973; Fryns-Claessens and Van Cotthem, 1973; Senand Hennipman, 1981).
Van Cotthem (1970)reported occurrence of mostly anomocytic and some polocytic stomata in Cheilanthes. Only anomocytic stomata were found by Chuang and Liu
(2003) in all the six species of Cheilanthes they studied. Interestingly, we found only polocytic stomata in all the species we studied (See Table – 1) and in all the cases they were hypostomatic except in C. chrysophylla where it was amphistomatic. Sen and Hennipman (1981) suggested an ontogenetic pathway of development of different types of stomata including anomocytic type from the basic polocytic type of stomata.
Available from: https://www.researchgate.net/publication/299513473_Sen_K_and_Mukhopadhyay_R_2011_LM_and_SEM_Studies_on_Stomatal_Morphotypes_Epidermal_Characteristics_and_Spore_Morphology_of_Some_Indian_Species_of_Cheilanthes_Sw_Biores_Bull_5_304-310 [accessed Apr 8, 2016].
PLANT STOMATA ENCYCLOPEDIA 