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Harriman and Bear Mountain State Parks, New York, contain a rich and previously under-documented algal flora. We report 382 algal taxa (excluding diatoms), including 294 taxa not previously reported from the parks. Our inventory suggests that the algal flora has changed significantly since it was last studied in 1918 with a general increase in the number of desmid taxa (Zygnematophyceae) and changes...
Characteristics of the oospores have been used to delimit sections and, in some cases, species in the genus Tolypella A. Braun. To test the utility of oospore characters for identifying North American species of Tolypella, we investigated oospores from field‐collected and herbarium specimens. Oospore dimensions (length, width, and length to width ratio) and morphology (color, ridge number and shape,...
Characeae (Charophyceae, Charophyta) contains two tribes with six genera: tribe Chareae with four genera and tribe Nitelleae, which includes Tolypella and Nitella. This paper uses molecular and morphological data to elucidate the phylogeny of Tolypella species in North America. In the most comprehensive taxonomic treatment of Characeae, 16 Tolypella species worldwide were subsumed into two species,...
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