ACROSTICIIUM, § IIETEROXEUROX. 261 



Hah. Java, Blame, in Herb, nostr. Luzon, Cuming, n. 152, 104, and 105. 

 Isle of Bonin {Imp. Acad. Pterop. n. 54). China: Foochowfoo, Alexander: 

 lloiigkoiig, Urqultart (pinnsc (inner, more coriaceous, setas of the sinuses deci- 

 duous). Formosa, Wilford, n. 478 (sterile piiinsc sinuato-lohate, areolcs occa- 

 sionally including a free veinlet). Society Islands, Cuming, n. 1416. Aneiteum, 

 Milne. — The pinnatifid sterile pinna; and the presence of soft subulate seta; in 

 the sinuses of the segments are chiefly the characteristics of this plant, which 

 ill other respects has great affinity with some of the forms of yl. virens. 



129. A. (Heteroneuron) virens, Wall. ; caudex creeping 

 paleaceous, stipites a foot or more long 1 1 of the fertile 

 fronds scaly at the i)ase, fronds subcoriaceo-membranaceous 

 often bright pale-green when dry, pinnated; sterile frond a 

 span to H foot and more long ovato-oblong, pinnae very va- 

 riable in size and shape from 3-8-i) inches long oblongo- 

 lanceolate acuminate lol^ato-pinnatifid or coarsely serrated at 

 the margin, terminal one not unfrequently prolonged and 

 caudato-acuminate or sometimes an elongated apex of the 

 frond has numerous much contracted suborbicular pinnee 

 coadunate at the very extremity generally jiroliferous and 

 rooting, venation manifest but very variable, costules nearly 

 horizontal connected by transverse curved but angled veins 

 forming one or two large arched areoles from which are 

 emitted solitary or two to three free veins, or two combine 

 and form an interior areole with or without a free included 

 veinlet, towards the margin the veins form a more uniform 

 reticulation ; fertile fronds with the pinnoe much contracted 

 very variable in length 2-6 inches long linear or linear- 

 oblong entire or subsinuato-pinnatifid obtuse. — IVall. Cat. n. 

 1033. Hook, and Grev. Ic. Fil. t. 221 {excellent, especially 

 for what may perhaps be considered the normal and most 

 compound state of the venation). Campium, Pr. Cyrtogo- 

 nium, J. Sin. Bolbitis, Schott. Poecilopteris, Moore. He- 

 teroneuron, Fee. Acrost. subcrenatum {a small state). Hook, 

 and Grev. Ic. Fil. t. 110. A. proliferum {larger and prolife- 

 rous). Hook. Ic. Plant, t. 6S1 and 6b2. Campium, Pr. 

 Poecilopteris Hookcriana, Moore. Heteroneuron, Fee, Acrost. 

 p. 95. t. 55. Polybotrya, Bory, in Belang. Voy. Bot. p. \^. 

 Hook. 2d Cent, of Ferns, t. 88. A. terminans, IVall. Cat. n. 

 2168. Bolbitis, Schott. A. contaminans, Wall. Cat. n. 22. 

 Poeciloj)teris, Moore. — Var. ? crispatulum ; pinnie narrow- 

 lanceolate especially the fertile ones, sinuate or sublobato- 

 pirmatitid, veins generally forming only one costal series of 

 large areoles, the rest free rarely again anastomosing. A. 

 Ciispatuluni, IFall. Cat. n. 204. Poecilopteris, Moore. Cam- 

 pium, Pr. Cyrtogonium, /. Sm. 



