Nelumbo - The Bulletin of the Botanical Survey of India

M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Calcutta, IN

Abstract

While studying the ecology of low lying lands in and around Calcutta, some observations were made on the mechanism of pollination in Nechamandra alternifolia, a common aquatic herb of Hydrocharitaceae. The mode of pollination in this plant indicates that the phenomenon is little influenced by the surface depression formed by tepals of the pistillate flowers. It takes place by the direct contact of the anthers of the floating male flowers on a calm surface of water with die stigmatic lobes of the female flower.

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M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Calcutta, IN

Abstract

No Abstract.

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J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

The eco-pedon system of the protected premises of the Indian Botanic Garden, located along the river Hooghly in the lower gangetic plain in the district of Howrah, has been studied with a conservational point of view to understand the indiscernible phenomenon of the impact of the river water on the garden eco-pedo-chemical characteristics often submerged due to occasional tidal inundations of the river during the monsoons.

It is experimentally revealed that a chemically dilute river water siphons off the mineral riches of the submerged soil system during flash floods. The intensity of mineral erosion is noted to be directly proportional to the periodic length of submergence of the soil system notwithstanding its natural revamping capacity.

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J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

Nine large lakes out of twenty five occurring in the Indian Botanic Garden, Howrah, have been studied for bio-aquatic nature. The Characteristics of stational parameters are discussed. It is held that the disposition so the lakes vis-a-vis temporal changes and the human interferences are responsible factors affecting Proper conservation of these water bodies.

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J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

No Abstract.

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