244 
FERNS : BRITISH AND FOREIGN. 
§ 1. Hymenostegia, J. Sm Gen. Fil. (1841). 
Indusium nearly complete calyciform or very small and 
scale-like. 
* African species. 
1. A. Capensis, J. Sm. Gen. Fil. (1841). 
Polypodium capense, Linn. Cyathea 
Capensis, Sm. Hemitelia Capensis, 
B. Br. Amphicosmia Capensis, 
Moore . — South Africa. 
** Tropical America and West Indian 
species. 
2. A. lsevis, J. Sm. Gen. Fil. Amphicosmia 
laevis, Moore. Hemitelia Guianensia, 
Hook. Ic. PI. t. 648. — British Guiana. 
3. A. Hostmanni, J. Sm. Hemitelia Host- 
manni, Hook. Ic. PI. t. 646 ; Lowe's 
Ferns, 8, t. 61. Amphicosmia Host- 
manni, Moore. — Guiana. 
4. A. Surinamensis, J. Sm. Hemitelia 
Surinamensis, Miquel. — Guiana and 
Martinique. 
5. A. radens, Kanlf. ; Metten. Fil. Hort. Lips. — Brazil. 
6. A. Beyrichiana, J. Sm. Cyathea Beyrichiana, Presl; 
Hook. Ic. PI. t. 623. Amphicosmia Beyrichiana, 
Moore. — Brazil. 
§ 2. Tricostegia, J. Sm. Gen. Fil. (1841). 
Indusium absent. Sori furnished with articulated hairs, 
or naked. 
* Tropical American and West Indian species. 
7. A. aspera, B. Br. ; Hook, et Grev. Ic. Fil. t. 213, 214, 215 ; 
Hook. Gen. Fil. t. 21 ; Hook. Sp. Fil. t. 19 B. Poly- 
podium asperum, Linn. (Plum. Fil. t. 3). — Tropical 
America and West Indies. 
8. A. fero s., Presl; Hook. A. armata, Mart. Ic. Cr 7 jpt.Bras.tA 8 
(non Presl). Polypodium aculeatum, Badd. Fil. Bras, 
t. 42. — Tropical America and West Indies. 
Genus 133. — 
Portion of ferti'e 
pinna, under side. 
No. 1. 
