Halamphora sp. 3

You, Qingmin, Kociolek, John Patrick & Wang, Quanxi, 2015, Taxonomic studies of the diatom genus Halamphora (Bacillariophyceae) from the mountainous regions of southwest China, including the description of two new species, Phytotaxa 205 (2), pp. 75-89 : 85

Halamphora sp. 3 ( Fig. 90 )

Description:— Valves semi–lanceolate, dorsiventral with weakly triundulate dorsal margin and slightly convex ventral margin. Valve ends protracted and capitate. Raphe biarcuate with dorsally bent proximal endings. Length 18.3 μm, valve breadth 3.3 μm. Striae radiate throughout, 24–25/10 μm. Dorsal central striae coarse and distinctly thickened.

Distribution and ecology:— Hezhang, Guizhou, China, altitude 1450 m a.s.l., pH 7.2, collected in a pond near the road, with many filiform green algae in the water.

Observations:— Only one specimen has been found in LM.

Figures

FIGURES 78–90. 78–81. Halamphora tenella. LM. 82. Halamphora dusenii. LM. 83–86. Halamphora sp. 1. LM. 87–89. Halamphora sp. 2. LM. 90. Halamphora sp. 3. Scale bars = 10 μm for all LM figures.