Species-specificity of oospore dimensions in three ecorticate species of Chara (Charales,Charophyceae) |
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Authors: | Dilip Kumar Mandal Sri Narayan Ojha Samit Ray |
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Affiliation: | 1. Department of Botany, Visva-Bharati University, Santiniketan-731235, West Bengal, India;2. Visva-Bharati Computer Centre, Santiniketan-731235, West Bengal, India |
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Abstract: | Dimensions of oospores such as length, width, fossa-breadth, length-to-width ratio and number of striae were considered for morphological identification of the members of Charales. Oospores were collected from natural stands of three species, viz. Chara braunii, C. corallina and C. wallichii in ponds in West Bengal (India). Oospore dimensions (length, width and fossa-breadth) correlated well: though the fossa breadth–length relation of C. braunii showed lower correlation coefficient (r2 = 0.076, p < 0.001), all other five breadth or width–length relationships showed r2 ≥ 0.23, p < 0.001. These bivariate patterns were significantly different among the species (one-way ANCOVA of length–width ratio to fossa-breadth: adjusted means and slopes both p < 0.001), C. braunii and C. corallina has similar length to width ratios, C. wallichii and C. corallina were similar in width, whereas the species differed in breadth and length in the order C. braunii, C. wallichii, and C. corallina. |
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Keywords: | Chara Morphometric analyses Oospore dimension Species-specificity Taxonomy |
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