Echinostelium brooksii K. D. Whitney.

Echinostelium brooksii K.D. Whitney. [0, 1] Loc 17: On Cyl cladodes, JRM161, 2 March 2009, (mc, pH = 7.3). The sporocarps are dispersed to gregarious, yellowish white to slightly pinkish, stalked, 13–14 µm diam., 59–81 µm height and 1–2 µm diam. in the apex, filled with granular matter, mainly toward the base. Columella lenticular to hemispherical, approximately 4 µm diam. Peridium persisting at base like a minute collar. All these characters fit the description given by Whitney (1980). Echinostelium brooksii was found in a single locality, mixed with another Echinostelium species. Before this study, Echinostelium brooksii was only known for Tlaxcala (Rodríguez-Palma et al. 2002).