274 ACROSTICHUM, § GYMNOPTERIS. 



a solitary simple free one; fertile frond much smaller oblong 

 but with pinnffi and segments of the same character though 

 more obtuse and more entire at the margin. — Gymnopteris, 

 Fee, Acrost. p. 84. t. 44 [rather a small specimen witli nearly 

 entire phince) . Hook. Ic. Plant, t. 971 and 972, Anapausia, 

 Moore. 



Hab. Ti'opical America-. French Guiana, Le Prieur (my specimen from Le 

 Prieur has the margins nearly entire and quite lilie Fee's figure, but is larger) ; 

 Brazil, Amazon, St. Gabriel, Spruce, n. 2121 (scarcely at all pinnated); Para, 

 Spruce, n. 577 ; Jamaica, alt. 3000 feet, Purdie (" G. aliena, /3, Pnrdieana," 

 Griseb. in Fl. W. Ind. ined.) ; Trinidad, Cruger, n. 221. — Some of the smaller, 

 yet fully developed specimens of this plant closely resemble certain states of 

 J. alienum, but the venation, especially the general absence of the free included 

 veins, will at once distinguish it. 



152. A. (Gymnopteris) Harlandii, Hook. ; caudex stout 

 short creeping woody setaceo-paleaceous, stipites 1 foot to 

 2 feet long of the sterile frond, stout close-clustered palea- 

 ceous below with setaceous scales; s/eri/e fronds 1-1 ^-2 feet 

 long coriaceous glossy rarely simple three-partite or pinnate 

 with five large pinnae of which the lateral ones are 6-8 inches 

 long, lowest pair free the rest coadunate and very de- 

 current, terminal one a foot long, all oval-lanceolate long- 

 acuminate entire, venation very manifest, costules distant 

 connected by transverse curved flexuose veins including a 

 network forming irregular smaller ai'eoles which enclose free 

 divaricating veiiilets ; fertile fronds smaller very much con- 

 tracted, pinuas .3-4 inches long ^-f of an inch wide oblongo- 

 lanceolate acuminate but having the same structure as the 

 sterile. — Gymnopteris decurrens. Hook. Fl. Hongkong, in 

 Kew Gard. Misc. ix. p. .359, Hook. Fil. Exot. t. 94 [not of 

 Hook. Gard. Ferns, t. 6). Acrostichum, Benth. Fl. Hong- 

 kong, p. 445 {not Acrost. decurrens, Desv. ; nor Leptochilas 

 decurrens, BL). 



Hab. Hongkong, Dr. Ilarland, top of Mount Gough, etc., Wilford. — This ap- 

 pears, though variable in form, a very distinct species, and as yet detected only in 

 the island of Hongkong. 



153. A. (Gymnopteris) fiuviatile, Hook.; caudex long 

 creeping branched, stipites stout a foot and more long, 2 feet 

 of the fertile frond ; sterile fronds \\-2 feet long firm-mem- 

 branaceous simple broad-lanceolate and entire, or larger and 

 hastato-trilobate, with lateral segments 6-7 inches long 2^ 

 inches broad ovato-oblong acuminate horizontal, middle lol)e 

 16 inches long 4 inches wide broad-lanceolate or larger still 

 and pinnatifid with about 5-9 large segments, inferior la- 



