Some Observations on the Morphology and Cytology of Indian Charophyta

Cytotaxonomic Studies onNitella FurcataSubsp.FlagelliferaF.PatulaGr. Ex Allen and Comparison with Other Taxa ofN. FurcataComplex

“…mucronata, SARMA and RAMJEE (1971) have emphasized that the duplication of chromosome number has been affected by occurrence of this taxon on higher altitude since the same taxon had 18 chromosomes found in plains (KHAN and SARMA 1967b). The same authors (SARMA and RAMJEE 1971 ) hold the view that polyploidy is not always affected by altitudes. J n conformity with the latter view the present authors have been able to establish a duplicated chromosome number in N. furcata subsp.…”

Cytotaxonomic Studies on <i>Chara socotrensis</i> Nordst. in Kuhn f. <i>nuda</i> (Pal) R.D.W. from West Bengal, India

“…Later collections of this species were made from different parts of India but variable characteristics have been recorded. Sinha and Verma (1970) and Ramjee and Sarma (1971) reported n=14 chromosomes in populations of this species grow ing in Ranchi, Bihar and Madhya Pradesh, India respectively. The present material from Mecheda, West Bengal showed a chromosome number of n=28 and the karyotype is quite distinctive in having two chromosomes with supernumerary constrictions and two chromosomes with satellites-a feature not reported else where in other taxa of Characeae studied (cf.…”

“…The present material from Mecheda, West Bengal showed a chromosome number of n=28 and the karyotype is quite distinctive in having two chromosomes with supernumerary constrictions and two chromosomes with satellites-a feature not reported else where in other taxa of Characeae studied (cf. Khan and Sarma 1967, Guerlesquin 1967, Ramjee and Sarma 1971.…”

“…It was pointed out (Chatterjee 1976a) that the Mecheda specimen of C. socotrensis f. nuda like all other specimens of this taxon collected from elsewhere in India (Dixit 1940, Sundaralingam 1959, Rao and Rao 1969 showed variable character istics and does not fully tally with the type description of Pal (1932). Sinha and Verma (1970) and Ramjee and Sarma (1971) determined the chromosome number of this taxon as n=14.…”

“…pashanii Dixit) are reported from India (cf. Pal et al 1962, Ramjee andSarma 1971). While C. corallina and C. braunii occur extensively in West Bengal, C. corallina var.…”