Protosphagnalean mosses

Figure 1. Protosphagnalean mosses showing various degrees of expression of sphagnoid areolation pattern. Protosphagnum nervatum Neuburg (1960: 75) habit (A). Intia variabilis Neuburg (1958a: 101), leaf, with more or less expressed sphagnoid areolation pattern near leaf base (B). Protosphagnum nervatum, median laminal cells (C). Kosjunia sp., median laminal cell, showing slightly developed sphagnoid areolation pattern (D). Collections: A: Viled (see Gomankov & Meyen, 1986), Upper Permian, GIN 3774/3B-7); B–D: Adzva (MHA: see Maslova et al., 2012a), Upper Permian: B: 7643–7646 (32M_11_8_1); C: 5353 (32M_7_3_1); D: 6872 (32M_9_6_4).