Plants named Colea hyalina & Saurora alpina by J. Donkher 1 Pires compound 810 1 Pires, not compound, appearing gamophyllous from above 2. 2 Frond without paleae with alone papillae on ventral & marginal scales 805. 831. 909 ? 809 2 Frond with paleae without alone papillae 3 3 Frond with very noticeable disks of paleae on dorsal surface, ? Pelto-lepis 640 3 " " less " " 4 " " dorsal fruit near end of frond & small disks with paleae Terminal paleae not numerous or much exerted 82.3 910 4 as above, but dorsal disks of paleae not present 5 small occasional the palene-like outgrowths on dorsal surface 5 tufts as above but tufts of apical scales on frond not noticeable . 807 6 tufts of apical scales noticeably present 842 864 909 ? True Colea hyalina 610. 542. 1066 ? 859