43. ASPIDIUM, POLYSTICHUM. 249 



Polystichum, Roth. Veins all free. Sp. 1-42. Texture more or lesg 

 coriaceous in all except species 1, 4, 38, 39, and 41, and teeth usually awned. 



* Frond pinnatifid only. Sp. 1-2. 



1. A. (Polyst.) glandulosum, Hk. & Gr. ; st. tufted, very short ; Jr. 6-8 in. 1., 

 1-1^ in. br., oblong-lanceolate, tapering to both ends, cut down nearly to the 

 rachis above and quite below into bluntly sinuated linear-oblong lobes, 

 emarginate on the upper, decurrent on the lower side at the base ; texture 

 herbaceous ; rachis and both surfaces finely glanduloso-pilose ; vsins pinnate, 

 the veinlets in groups of three ; sori 2-8 to a pinna, midway between the midrib 

 and edge. Hk. Sp. 4. p. 6. Hk. & Gr. t. 140. (not Blume). 



Hab. Cuba and Jamaica. 



2. A. (Polyst.) Plaschnichianum, Kunze ; st. tufted, 3-4 in. 1., slender, fibrillose 

 below ; jr. 4-6 in. 1., ^-f in. br., lanceolate, rooting at the point, subentire or 

 slightly or deeply lobed at the base ; texture coriaceous ; loth surfaces slightly 

 fibrillose; lower veins in groups of four; son copious, scattered. Hie. Sp. 4. 

 p. 7. t. 211. 



Hab. Jamaica. According to Grisebach, a less cut form of species 3. 



** Fronds once pinnate, the lower pinnce entire or pinnatifid below. Sp. 3-17. 



3. A. (Polyst.) rhizophyllum, Swz. ; st. tufted, 1-2 in. 1., fibrillose, slender ; Jr. 

 2-6 in. 1., | in br., with the long, narrow, upper half of the frond lengthened 

 out and rooting, the lower half cut down to a flattened fibrillose rachis into 

 oblong rhomboidal subentire lobes, f-^ in. br., in. deep ; texture subcoriaceous ; 

 veins copiously pinnate in the lobes; sori scattered* Hk. Sp< 4. p. 7. Hk. & 

 Gr. Ic. t. 59. 



Hab. Jamaica and Cuba. 



4. A. (Polyst.) semicordatum, Sw. ; st. scattered, 6-12 in. 1., fibrillose at the 

 base ; fr. 2-3 ft. 1., 8-12 in. br., simply pinnate ; pinnce spreading, 4-6 in. 1., 

 |-f in. br., nearly entire, acuminate, cordate or truncate at the base ; texture 

 papyraceo-herbaceous or subcoriaceous, both sides naked and rachis nearly so ; 

 veins pinnate, the lower ones ending short of the edge ; sori in 1-3 rows on each 

 side, the inner one the most constant and regular, close to the midrib. Hk. Sp. 

 4. p. 16. Cyclopeltis, J. Sm. 



Hab. Tropical America, from Cuba and Panama to Brazil and Peru; Philippines, 

 Amboyna, Malayan Peninsula and Isles. This corresponds to the genus Hemicardium 

 of Fee, who makes five species. A. Kinyii, Hance (Ann. Sc. Nat. 4. ser. 18. p. 237), 

 from the Caroline Isles, is said to have blunt repand pinnse 1 in. 1., under in. br. ; 

 veins less branched, and fruit in a single line. 



5. A. (Polyst.) munitum, Kaulf. ; st. tufted, 4-9 in, 1., strong, straw-coloured, 

 densely clothed, especially below, with large glossy lanceolate scales ; fr. 1-2 

 ft. 1., 4-8 in. br. ; pinnce close, 3-4 in. 1., - in. br., the apex acuminate, the 

 edge finely spinuloso-serrated throughout, the upper side auricled and the lower 

 obliquely truncate at the base ; texture subcoriaceous ; rachis generally scaly ; 

 veinlets fine, close ; sori in two rows near the edge. Hk. Sp. 4./>. 10. t. 219. 



Hab. Western N. America, from Nootka to California. 



6. A. (Polyst.) falcinellum, Swz. ; st. tufted, 4-8 in. 1., densely clothed, 

 especially below, with blackish-brown lanceolate scales ;fr. 12-18 in. 1., 4-6 in. 

 br. ; central pinnce with about their own space between them, 3 in. 1., in. br., ths 



2 i 



