Phaeoceros laevis

Hilgert-Moreira, Suzane Both & Lorscheitter, Maria Luisa, 2025, Identification of palynomorphs sampled from a sedimentary profile of the last 5000 years in Lagoa dos Patos, Rio Grande do Sul, southern Brazil., Acta Botanica Brasilica (e 20240187) 39, pp. 1-15 : 11

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).

Figures

Figure 6. Bryophytes. A, B.Sphagnum (Dill).Hedwis,proximal face:1º 2º pl; C, D.Anthoceros L.emend.Prosk., proximal face:1º–2º pl; E–G. Phaeoceros laevis (L.) Prosk., proximal face. Other palynomorphs. H, I. Platyhelminth eggs; J, K. Mandible fragments; L. Microforaminifera (pl planes).