Cylindrospermopsis catemaco Komárková-Legnerová & R.Tavera, 1996

Li, Xiao-Chuang, Huo, Shou-Liang, Cai, Fang-Fang, Yang, Yi-Ming, Xi, Bei-Dou & Li, Ren-Hui, 2017, The taxonomy and phylogeny of the genus Cylindrospermopsis (Cyanobacterium) evaluated by adding five new records from China, Phytotaxa 316 (3), pp. 224-238 : 229

Cylindrospermopsis catemaco Komárková-Legnerová & R.Tavera (1996: 413, 413, fig. 6)

Strains:— CHAB 148, CHAB 151, CHAB 155 and CHAB 220 from a pond in Kunming City, Yunnan Province; CHAB 1390 and CHAB 1391 from Lake Chidong in Huang’gang City, Hubei Province.

Habitat:— In lakes and ponds, planktonic.

Description:— Trichomes solitary, free floating, irregularly screw-like coiled, not constricted at the cross-walls, narrowed and sharply pointed at both ends, ( Fig. 1M–Q ). Cells cylindrical, slightly attenuated towards the ends, 4.0– 8.3–15.0 μm long, 1.3–3.4–4.1 μm wide (L:W ratio 1.3–2.9–5.0), apical cells sharply pointed at the ends. Heterocytes cylindrical to ellipsoidal, bluntly pointed at the ends, sometimes curved, 2.9–7.6–10.9 μm long, 1.4–3.3–4.4 μm wide (L:W ratio 1.4–3.6–4.5). Akinetes cylindrical to ellipsoidal, rounded at the ends, usually curved, 4.9–11.6–18.9 μm long, 2.0–5.0–7.0 μm wide (L:W ratio 1.3–1.9–5.0).

Notes:— C. catemaco was identified according to its irregularly screw-like coiled trichomes, apical cells narrowed and sharply pointed at the ends, and their heterocytes curved, drop-like, slightly narrowed to the rounded ends.

Figures

FIGURE 1. General morphological aspects of five Cylindrospermopsis new records species from China. A–C. C. taverae CHAB 143. D–G. C. helicoidea CHAB 357. H–K. C. philippinensis CHAB 5180. L. C. philippinensis CHAB 5182. M. C. catemaco CHAB 148. N–O. C. catemaco CHAB 151. P. C. catemaco CHAB 155. Q. C. catemaco CHAB 220. R. C. africana CHAB 359. S. C. africana CHAB 485. T–V. C. africana CHAB 1394. Scale bars = 10 μm. Note: C. = Cylindrospermopsis.