Euastrum dideltoides (Raciborski)

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 : 138-140

* Euastrum dideltoides (Raciborski) West & G.S. West

West & G.S. West 1902, p. 147, pl. 19, fig. 12.

Fig. 6g

Comments: A poorly known species, it may be related or even synonymous to other, morphologically-similar species such as Euastrum quadriceps Nordstedt.

Distribution: Australia (New South Wales), Africa ( South Africa as “forma”) and Sri Lanka. A new record for

Indonesia. Based on the aformentioned localities, we have treated this as a tropical species.

Figures

FIGURE 6. Euastridium: (A) E. staurastroides Carter. Euastrum: (b) E. binale var. curtum (West & G.S.West) Willi Krieger, (c) E. denticulatum F.Gay 1884, (d) E. cf. didelta Ralfs complex, (e) E. didelta var. capitatum (Scott & Prescott) O.V.Anissimova & Guiry, (f) E. didelta var. dideltoides (Willi Krieger) O.V. Anissimova & Guiry, (g) E. dideltoides (Raciborski) West & G.S. West, (h) E. dubium Nägeli, (i) E. neosinuosum O.V.Anissimova & Guiry, (j) E. longicolle var. magnaporum A.M.Scott & Prescott, (k) E. cf. pulchellum Brébisson, (l) E. serratum Joshua, (m) E. sublobatum var. sumatranum A.M.Scott & Prescott, (n) E. turgidum Wallich.