48. POLYPODIUM, OONIOPHLEBIUM. 341 



areolac in a series between the midrib and edge, with one sorus in each. Hk. Sp. 

 4./>. 18. 



Hab. West Indies and Columbia to Ecuador ; Guinea Coast. P. semipiimatifidum, 

 Mett., is a variety with larger sori, and the frond not at all glaucous, and sometimes 

 deeply lobed. The Guinea plant is P. Irmngii, Kuhn. 



** Fronds pinnatifid. Sp. 229-231. 



229. P. (Gonioph.) Matthewsii, Mett. ; st. 4-6 in. 1., clothed with deciduous 

 soft spreading brown hairs ; fr. pendent, 6-18 in. 1., 2-5 in. br., cut down" nearly 

 to the rachis into numerous entire pinnce 1-3 in. 1., 2-3 lin. br., with generally a 

 broad rounded sinus between them ; texture coriaceous ; under surface clothed 

 with hairs like those of the stem ; veins obscure ; areolce and sori in a single 

 series. Hk. Sp.5.p. 20. 



Hab. Andes, from Columbia to Peru. A well-marked species, characterized by its very 

 pendulous habit and coriaceous texture. 



230. P. (Gonioph.) niponicwn, Mett. ; st. stramineous; fr. 5 in. 1., 1J in. br., 

 sublanceolate, cut down nearly to the rachis into about 20 pairs of spreading 

 linear-oblong entire obtuse pinnce, of which the lowest are free, slightly reduced 

 and deflexed ; texture papyraceous ; both sides densely pubescent ; areolce in a 

 single series ; sori in a row near the midrib. Mett. Fil. Ind. 2. p. 222. 



Hab. Japan, Siebold, Buerger. 



231. P. (Gonioph.) amcenum, Wall. ; rhizome stout, densely clothed with 

 spreading fibrillose dull-brown scales ; st. 6-12 in. 1., firm, erect, naked ; fr. 1-2 

 ft. 1., 6-12 in. br., cut down nearly to the rachis into numerous entire or slightly- 

 toothed pinnce 3-6 in. 1., J-f in. br., narrowed gradually from the base to an 

 acute point, the lowest pair deflexed ; texture firm, herbaceous; both sides 

 naked, or the rachis beneath rather scaly ; areolce and sori in a single series. 

 Hk. Sp. 5. p. 24. 



Hab. N. India (up to 10,000 ft.) and Formosa. 



*** Fronds pinnate. Sp. 232-260. 

 A. Pinnce close, dilated and c'asually confluent at the base. Sp. 232-244. 



232. P. (Gonioph.) trilobum, Cav. ; rhizome stout, the scales ovate-acuminate, 

 reddish ; s.4-6 in. 1., firm, erect, glossy ; /r.6-12 in. 1., subdeltoid, with a linear 

 entire or slightly toothed terminal pinna, and 1-3 similar distant ones on each 

 side, the lowest 3-4 in. 1., -| in. br., sometimes forked ; texture subcoriaceous ; 

 rachis and both sides naked ; sori and areolce uniserial, the former oblong, quite 

 immersed. Hk. Sp. 5. p. 22. 



Hab. Chili. 



233. P. (Gonioph.) ensiforme, Thunb. ; rhizome stout, the scales linear, ferru- 

 ginous, fimbriated ; st. 4-6 in. 1., stout, erect, naked ; fr. 6-12 in. 1., 4-6 in. br., 

 with a ligulate terminal pinna 3-4 in. 1., ^ in. br., and several distant similar 

 erecto-patent ones on each side, which are decurrent at the base ; texture very 

 thick ; both sides naked ; veins immersed ; areolce uniserial, the sori large, 

 distinctly immersed. Hk. Sp. 5. p. 23. 



Hab. Cape Colony and Natal. 



234. P. (Gonioph.) californicum, Kaulf. ; rhizome wide-creeping, the scales 

 spreading, lanceolate, ferruginous ; st. 3-6 in. 1., firm, erect, naked ;fr. 6-9 in. 1., 

 3-5 in. br., oblong-deltoid, cut down nearly or quite to the rachis into entire or 

 finely-toothed pinnce l-2^ in. 1., -| in.br., lowest not reduced ; texture papyraceo- 





