236 DR. J. D. HOOKER ON THE PLANTS 
25a NEPHRODIUM INJEQUALE, Hook. i 
Hab. Fernando Po and Cameroons Mountains, alt. 7000-10,000 feet. 
26. NEPHROLEPIS TUBEROSA, Presl. 
Hab. St. Thomas’s Island and Cameroons Mountains, alt. 4000-5000 
feet. 
97. POLYPODIUM VILLOSISSIMUM, Hook. 
Hab. St. Thomas's Island, alt. 6000 feet. 
Also found at Sierra Leone. 
28. POLYPODIUM RUGULOSUM, Lab. 
Hab. Fernando Po, alt. 7000 feet. 
One of the most widely distributed of Ferns in the tropics and 
south temperate zone. 
29. PoLYPODIUM, n. sp. 
Hab. Cameroons Mountains, alt. 7000 feet. 
30. PoLYPODIUM OPPOSITIFOLIUM, Hook. 
Hab. Peak of St. Thomas’s Island, alt. 5000 feet. 
31. PoLypopiuM LORIFORME, Wail. 
Hab. Peak of St. Thomas’s Island, alt. 4000-5000 feet. Fernando Po, 
alt. 3000-5000 feet. 
32. PoLyPoDIUM LEPIDOTUM, Willd. 
Hab. Cameroons Mountains, alt. 9000 feet. 
Àn American fern ; also found in St. Helena. 
33. GYMNOGRAMME JAVANICA, Bi. 
Hab. St. Thomas's Island, alt. 4000—5000 feet. Fernando Po, alt. 
10,000 feet. Cameroons Mountains, alt. 3000-7000 feet. 
A widely distributed fern, extending through India to the 
Sandwich Islands. 
34. GYMNOGRAMME TOTTA, Schlecht. 
Hab. Fernando Po and Cameroons Mountains, alt. 1000-7000 feet. 
Found also in Madeira, throughout tropical Africa, and India. 
35. GYMNOGRAMME LANCEOLATA, Sw. 
Hab. Fernando Po and Cameroons Mountains, alt. 3000-7000 feet. 
A native of South Africa, India, and South America. 
36. ACROSTICHUM HYBRIDUM, Bory. 
Hab, Fernando Po and Cameroons Mountains, alt. 4000-8000 feet. 
A Bourbon and Tristan-d'Acunba fern. 
