Germainiella guizhouiana Kociolek, You, R.Lowe & Q.Wang, 2019

Kociolek, J. P., You, Q. M., Lou, F., P. Yu, Lowe, R. L. & Wang, Q. X., 2019, First Report and New Freshwater Species of Germainiella (Bacillariophyta) from the Maolan Nature Reserve, Guizhou Province, China, Phytotaxa 393 (1), pp. 35-46 : 38

Germainiella guizhouiana Kociolek, You, R.Lowe & Q.Wang , sp. nov.

Figures 11–13, 18, 19.

Description: Valves elliptical-lanceolate, with rounded apices, barely protracted. Length 9–13 μm, breadth 3–4 μm. A narrow axial area runs the length of the valve. Raphe filiform, with proximal raphe ends barely distinguished. Striae are not visible in the light microscope.

External valve views with SEM (Figs 18, 19) show the large conopeum, with a straight raphe, slightly curved proximal raphe ends, and distal raphe ends that extend onto the valve mantle and hooked there (Figs 18, 19). Siliceous struts are oriented perpendicular to the raphe slight are evident along the course of the raphe. The conopeum appears to have no perforations. Internally, there are round occlusions over the areolae (Fig. 19, arrow).

Type: CHINA. Guizhou Province: Maolan Nature Reserve, 25 o 15′42” N, 108 o 04′13” E, The new species was found in mixed samples of benthos, roots and scrapings from rocks from a tree-lined stream, collected by Q-X. Wang & J.P. Kociolek, 4 October 2015 (holotype: SHTU! slide and material GZ-1510081, Biology Department Diatom Herbarium, Shanghai Normal University, Shanghai, China, here illustrated as Fig. 11; isotype: COLO! material 10419, Kociolek Collection, University of Colorado, Museum of Natural History Diatom Herbarium , Boulder, USA) .