POLYPODIUM, § PIIEGOPTERIS. 265 



ones cuneate on both sides, at the base achiate above gra- 

 dually confluent, all alato-decurrent obliquely ovate or elon- 

 gato-ovate acute pinnatifid, the segments falcato-lanceolate 

 acute thickened at the margin and a little revolute obsoletely 

 subrepand, sinuses narrow acute, colour green on both sides, 

 veins simple or forked, sori on the middle of the veinlets 

 cinnamon-coloured solitary on each segment, costa a little 

 prominent on both sides glabrous, quaternary rachiscs pro- 

 minent on both sides cinnamomeo-pubescent winged, tertiary 

 secondary and main rachises stramineous glossy grooved in 

 front, the furrow cinnamon-puberulous margined convex on 

 the back and glabrous, stipes bisulcate glabrous." Licbm. Fil. 

 Mex.p. 56. Metten. Phegopt. p. 14. 



Ilab. Mexico, Liebmann. — This Fern, of which I possess an authentic speci- 

 men from Liebmann, the author com[)ares to P. divergenn and offusum. It 

 appears distinct, and is perhaps more nearly allied to P. Sloanei. I possess 

 what appear to correspond with it from Guadeloupe {U Herminier), from Jamaica 

 and St. Vincent, from Brazil, Guatemala, and Guayaquil. 



210. P. (Phegopteris) dlvergens, Sw. ; caudex tortuose 

 creeping, stipites approximate 1-2 and more feet long sparsely 

 paleaceous below with narrow subulate scales, fronds ample 

 bright-green 1-3-4 feet long firm-membranaceous deltoid- 

 ovate acuminate sometimes gemmiferous tri-quadripinnate, 

 primary lower pinucB l-l^foot long petiolate unequally ovate 

 (lower half the broadest) acuminate, secondary pinnoc of 

 these and the primary superior j)innoe 6-8 inches long, tertiary 

 and ultimate pinnae (or pinnules) 1-2 inches long unequally 

 ovate or lanceolate very acute decurrent at the unequally 

 cuneate base serrato-pinnatifid with very acute subaristate 

 segments, the rachis winged, veinlets simple or once or 

 twice forked according to the breadth of the pinnules, sori 

 rather distant forming a series between the costule at the 

 margin generally one corresponding with each tooth or lo- 

 bule, rachises and costoe pubescent. — a, macrophyllum ; frond 

 usually tripartite with broad pinnules. Pol. divergens, Sw. 

 Syn. Fil. p. 73. Willd. Sp. PL v. p. 209. Schk. Fil. p. 26 b. 

 Phegopteris, Fee. Metten. Phegopt. p. 14: {including var. 

 microphyllum). Polyp, multifidum, Jacq. Ic. PL Rar. t. 

 643 {e.rcellent). — ^, microphyllum ; frond quadripartite, j)in- 

 nules smaller and narrower. Pol. effusum, Sio. Ft. Ind. ()cc. 

 iii. p. 1690. Syn. Fil. p. 41. Willd. Sp. PL v. p. 20S. 

 Schk. Fil. p. 27. t. 26 c. Phegopteris, Fee. 



Ilab. Tropical America, both a and j3 frequent. Var. a. Brazil, Gardner, ». 



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