Letter | Published:

New Observations on Uronema

Naturevolume 155page115 (1945) | Download Citation



Uronema indicum growing as an epiphyte on aquatic plants in July at Allahabad, India, has been studied in natural as well as cultural conditions. In Nature the filaments were about 6 mm. long, but in culture they attained a length of 4·2 cm. The cells showed wide variations, even in Nature. Usually they were 14–19 μ long and 6–14 μ broad and had a chloroplast occupying the whole length of the cell. In many cases the cells, especially those near the tip, were much longer (40·3 μ) and had the chloroplast only in the middle. The size of the filament and cells and the extent of the chloroplast within the cell have been made the chief features for differentiating the various species of Uronema. The above observations show that such variations may also be due to ecological conditions.

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  1. Department of Botany, University, Allahabad

    • A. K. MITRA


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