20. Phaeoceros laevis (L.) Prosk .

(Fig. 6E–G)

Radial spore, circular to subtriangular polar view, with rounded angles and slightly convex sides. Thick exospore. Heteropolar, trilete with long arms, bifurcate at extremities on the proximal face. Laevigate to abundant small ornamentation on the distal face, according to the spore grain: granulate, echinate, or irregularly verrucate. Proximal face laevigate or minimally ornamented. Equatorial diameter ca. 45–60 µm (x 58 µm). Ecological data:plant typically found in wet soils; can cover large areas on bare soils or the banks of rivers and streams (Menéndez, 1962).