POLYPODIUM, § GONIOPHLEBIUM. 21 



feet long 4-6 inches wide broad- or ovato-lani^eolatc acumi- 

 nated with an entire or subpinnatifid apex firm-membranacc- 

 ous deeply nearly to the rachis pinnatifid, segments approxi- 

 mate horizontal from a broad base (the upper base singularly 

 produced or upcurrent especially of the lower half of the 

 frond) oblong gradually acuminate subfalcate entire or sub- 

 sinuate, lowest pair often deflexed, veins forming one or two 

 series of large costal areoles of which one or both series are 

 soriferous, veinlets free. — Linn. Sjj. PL p. 1546. Siv. Syn. 

 Fil.p. 35. Willd. Sp. PL v. p. 176. Metten. Polyp, p. 76. 

 Marginaria, Pr. Goniophleb., Fee. Polyp, plesiosorum, 

 Kze. P. gonatodes, Kze. and Metten. Fit. Hart. Lips. p. .32. 

 t. 24. f. 11 and 12. P. confluens, Liebm. P. Falcaria, Kze. 

 in Linncea, xviii.p. 316. P. Iffitum, Raddi. P. latipes, Fisch. 

 and Langsd. p. 10. /. 10. P. colpodes, if^e. P. vacillans, Lk. 

 P. punctulatum, Hook. Ic. PL t. 69.— Pliwi. FiL t. 78. 



Hal). Tropical America, frequent : West Indies, Plumier, etc. ; Cuba, C. 

 Wright, n. 827 ; Mexico, Jurgeiisen, n. 893, Galeotti, n. 6559 and 6550, Lieb- 

 mann; Guatemala, Skinner ; Br&zW, Gardner, 71. 121 and 5918, Spruce, n. 2S34 ; 

 Panama, Seemann (P. pectinatum, /. Sm.) ; Venezuela, Fendler, n. 212 (P. latipes, 

 Eat.), 243 and 353, Linden, n. 531 ; Ecuador, Spruce, n. 5275 and 5269, Jame- 

 son, n. 471 ; Peru, Paeppig (racliis and costae beneath hairy, P. dasypleuron, Kze., 

 Metten. Polyp, p. 76) ; farapota, Spruce, n. 4650 a7id 4653. — The P. loriceum, 

 L., is founded upon Plumier's figure above quoted. It is remarkable for having 

 the superior base of many of the lower pairs of segments surcurrent, instead of 

 having, as is usual, the inferior base decurrent, a character well figured and even 

 described by Plumier. Unfortunately the character is not constant, and I possess 

 almost all intermediate grades, till the mark disappears altogether, hence many 

 supposed species have been constituted of it. 1 am disposed to thiidv I have 

 underrated rather than overrated the number of these pseudo-species, and most 

 of my references are to authentic specimens. My specimens of P. vacillans,* 

 Lk., exhil)it numerous segments which are surcurrent at the superior base. P. 

 appendiculatum of Linden, figured in Hook. Fil. E.xot. t. 87, is so in a less degree, 

 and the red veins can hardly be considered a sound specific character. Again, 

 some of my smaller specimens seem almost to pass into P. Cafharince, especially 

 a small form of P. plesiosorum and P. deltoideum, Liebm. in Herb, nostr. 



261. P. (Goniophlebium) lasiopus, Kl. ; " caudex creeping 

 clothed with blackish-brown ovato-lanceolate acuminate ri- 

 gid apprcsscd scales, stipes 1 inch long, frond membranace- 

 ous on each side (as well as the petiole) viscidly puberulous 

 lanceolate acuminate deeply pinnatifid, segments contiguous 

 10 lines long 2 lines wide oblong and slightly attenuated rather 

 obtuse entire, lowest pair free remote slightly abbreviated 



* This, together with P. karpendes, Lk., which Mettenius makes synonymous 

 witli. P. latipe-t, Mr. J. Smith is disposed to refer to P. attenuatum, II. B. K. and 

 Willd. (see p. 24). 



