Nelumbo - The Bulletin of the Botanical Survey of India

R. V. Kammathy ¹, Seshagiri Rao Rolla ¹

Affiliations
1 Botanical Survey of India, Poona, IN

Abstract

Chromosome numbers of 12 Species of Commelina have been worked out of which the chromosome numbers of 6 species and one variety are reported for the first time. In view of the misidentification of many species by earlier workers, reinvestigation of the chromosome numbers of some of the species has been suggested to confirm their earlier reports. A few new combinations are also added.

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R. V. Kammathy ¹, Seshagiri Rao Rolla ¹

Affiliations
1 Botanical Survey of India, Poona, IN

Abstract

Chromosome numbers of 18 species under 4 genera are studied of which the chromosome numbers of 6 species are recarded for the first time. Four species show variation from earlier reports. Aneuploidy and polyploidy are noted in Cyanotis and Murdannia. Reinvestigation of chromosome numbers of some of the species by earlier workers has been suggested to confirm their earlier reports. Possibility of a separate generic status has been suggested for the Ochreaeflora section of Cyanotis. A few new combinations are also added.

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K. N. Subramanyam ¹, Seshagiri Rao Rolla ¹

Affiliations
1 Botanical Survey of India, Poona, IN

Abstract

This paper deals with the general floristic account of Pravarasangam area, Maharashtra State. A brief description of the grassland in the moist river banks and the scrub jungle in the dry plains is given. 150 species belonging to 118 genera and 35 families are enumerated, out of which Gramineae, Papilionaceae, Compositae and Amaranthaceae are the dominant ones.

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Seshagiri Rao Rolla ¹

Affiliations
1 Botanical Survey of India, Poona, IN

Abstract

The paper gives an account of the collections of Angiosperms and other lower group of plants made and studied by the author from the Sikkim State of the Eastern Himalayas during 1955. The area under study lies between 27°10'-28°5' N and 88°30'-89° E and includes the Lachen and Lachung river valleys, the upper Tista river valley and the neighbouring mountain slopes and meadows of the Northern Sikkim and the mountain ranges and meadow on way to Nathu La from Gangtok and Jelap La from Rongli, covering an altitude between 1400 and 4400 m. During the period under study, nearly 5000 specimens comprising 471 species of flowering plants, 6 species of Gymnosperms, 38 species of Pteridophytes and 14 species of algae, were collected. Notes on several medicinal and economic plants growing in wild condition, based on the data collected from the villagers and forest guards, are also incorporated in the paper.

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