Tetmemorus Ralfs ex Ralfs, 1848

Adam, Chaidir, Kenins, Alex & Prabowo, Danang A., 2025, Diversity and new records of desmids (Zygnematophyceae, Charophyta) in Central Kalimantan, Indonesia, Phytotaxa 691 (2), pp. 125-150 : 146

Tetmemorus Ralfs ex Ralfs, 1848

Tetmemorus cf. granulatus Brébisson ex Ralfs

Croasdale & Flint 1986, p. 81, pl. 17, figs 1, 2.

Fig. 8k

Comments: Certain identification between this species and Tetmemorus laevis var. tropicus Krieger relies on observations of the differently shaped zygospores, particularly with collections from tropical regions where the latter species was originally described from (see Croasdale and Flint (1986)). Furthermore, Tetmemorus laevis var. tropicus Willi Krieger is currently regarded as a synonym of Tetmemorus granulatus Brébisson ex Ralfs.

Distribution: Cosmopolitan.

Figures

FIGURE 8. Pleurotaenium: (a) P. nodosum var. gutwinskii Willi Krieger, (b) P. ehrenbergii (Ralfs) De Bary, (c) P. ovatum var. inerme Möbius.Staurastrum: (d) S. bifidum Brébisson ex Ralfs, (e) S. cf. cyrtocerum Brébisson, (f) S. distentum Wolle, (g) S.podlachicum Eichler & Gutwiński, (h) S. retusum W.B.Turner. Staurodesmus: (i) S. convergens (Ehrenberg ex Ralfs) S.Lillieroth, (j) S. patens (Nordstedt) Croasdale. Tetmemorus: (k) T. cf. granulatus Brébisson ex Ralfs.