Synura conopea Kynčlová & Škaloud

Kapustin, Dmitry A., Gusev, Evgeniy S., Lilitskaya, Galina G. & Kulikovskiy, Maxim S., 2020, Silica-scaled chrysophytes from the Ukrainian Polissia, Cryptogamie, Algologie 20 (12), pp. 121-135 : 132

Synura conopea Kynčlová & Škaloud

( Fig. 4A )

DISTRIBUTION. — Probably widely distributed; so far this species is recorded from Czech Republic ( Škaloud et al. 2012), Russia ( Gusev et al. 2016, 2017) and Korea ( Jo & Kim 2017).

REMARKS

In contrast to S. petersenii sensu stricto ( Fig. 4G ), which has a nearly cylindrical keel, S. conopea has a keel that is much more broadened apically. The struts which extend from the keel to the edge of the scale are not interconnected by transverse folds whereas in S. petersenii sensu stricto the struts are interconnected. Additionally, S. conopea differs in having somewhat smaller scale dimensions and large and closely arranged keel pores ( Škaloud et al. 2012).

Figures

FIG. 4. — Synura Ehrenb. taxa from the Ukrainian Polissia:A, Synura conopea Kynčlová & Škaloud,TEM;B, Synura echinulata Korshikov, SEM; C, Synura glabra, TEM; D, Synura heteropora Škaloud,Škaloudová & Procházková, TEM; E, Synura korshikovii Kapustin & Gusev, SEM; F, Synura macropora Škaloud & Kynčlová, TEM; G, Synura petersenii Korshikov, TEM; H, Synura petersenii f. columnata Siver, TEM; I, Synura sphagnicola (Korshikov) Korshikov, SEM; J, Synura spinosa f. spinosa Korshikov, SEM; K, Synura spinosa f. longispina J.B.Petersen & J.B.Hansen, TEM; L, Synura uvella Ehrenb. emend. Korshikov, SEM. Scale bars: A, C, D, F-H, K, 2 µm; B, E, I, J, L, 1 µm.