Pak. J. Bot., 34(3): 257-273, 2002. | Back to Contents | ||||
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Updated: 18-11-11 | ||||
LEAF EPIDERMAL ANATOMY OF SELECTED DIGITARIA SPECIES, TRIBE PANICEAE, FAMILY POACEAE OF PAKISTAN SYED SHAHINSHAH GILANI, MIR AJAB KHAN, ZABTA KHAN SHINWARI1 AND ZUBAIDA YOUSAF
Abstract: Anatomical studies
of both the abaxial and adaxial surfaces of leaf epidermis of the selected
Digitaria species showed variations in size and shapes of prickles, short
cells, silica bodies, microhairs with basal and distal cells, hooks, stomates
and long cells. Leaf epidermal anatomy was found to be an important tool for identification
of Digitaria spp. The average lengths of the organelles of leaf epidermises
were more clear difference between the species than considering their full ranges
of length and breadth. Cross shaped silica bodies were found in D. abludens
(av. length less than 15 µm), D. setigera and D. violascens
(av. length less than 20 µm), dumb-bell to cross shaped in D. nodosa
and D. sanguinalis ssp. vulgaris var. glabra while dumb-bell shaped
in D. ciliaris, D. ischaemum and D. radicosa.
Department of Biological
Sciences, Quaid-I-Azam University, Islamabad, Pakistan. |
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