The euglenoid genus Trachelomonas (Euglenophyta) from eastern Poland. Study on morphology and ultrastructure of envelopes with comments on morphologically similar species

• DOI: 10.11646/phytotaxa.278.3.1
• Publication Date: 2016-10-12T04:48:42Z
• Authors: MAŁGORZATA PONIEW...
• Keywords: Identification key; Morphology

I examined representatives of the genus Trachelomonas from two water bodies in eastern Poland. Using both light and scanning microscopy, a total 47 taxa were recorded during years study. Among taxa, 7 new to Poland (T. botanica var. minor, T. manginii, obovata klebsiana, zorensis, mirabilis obesa, raciborskii incerta woycickii f. pusilla). All found briefly described originally illustrated, added taxonomical comments almost all them. These may be helpful further research because at present, identification species environmental is still based on morphology trachelomonad envelopes. Taxonomists around world use key books for identification, which written (often old) data concerning external structure My study provided valuable information similarities differences between that appear very similar. also ecology biogeography reported taxa. For three volvocinopsis volvocinopsis, volvocina volvocina, hispida hispida), characterised by highest frequency occurrence studies, analysed their presence different abiotic conditions (both reaction temperature). The showed preferred alkaline conditions, with median pH ranging 7.9 8.8. volvocinospis occurred broadest range cooler waters, whereas was most often observed warm water.