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. 2019 Aug 29;130:115–133. doi: 10.3897/phytokeys.130.33979

Figure 1.

Figure 1.

The grammitid genus Scleroglossum in China. A–EScleroglossum pusillum in Yunnan (YunAcc) and F–HScleroglossum sulcatum in Hainan (HaiAcc). A habitat of S. pusillum occurrences in Yunnan B germinated green spore recovered from opened mature sporangia of S. pusillum. The remains of the spore wall are visible at the lower part of the larger of the two cells that both contain mature chloroplasts. The smaller cell is the first daughter cell formed by the first cell division C habit of S. pusillumD close up of the dorsal surface of the simple leaves showing the location of the submarginal sori and the occurrences of brown branched hairs of S. pusillumE close up of the sorus structure showing the placement at the submargin of the leaves in S. pusillum. F habit of S. sulcatumG close up of the dorsal surface of the simple leaves showing the location of the not submarginal sori and the occurrences of brown branched hairs of S. sulcatumH close up of the sorus structure showing the placement of the sori in dorsal grooves and a distinct lamina margin in S. sulcatum. Scale bars: 0.02 mm (B); 1 mm (E, H).