ACROSTICMUM, § II ETERON EURON. 263 



lata, JVall. Cat. n. 140. Jenkinsia, Hook. Gen. Fil. t. 75. 

 Moore. Campium, Pr. Cyrtogonium, J. Sm. Lomariop- 

 sis, Metten. Heteroneuron sculpturatum, Fee, Aa'ost. p.9^. 

 t. 56, judging from the figure [sori universal on the pinnce). 



ITab. India. — Var. a. Nepal and Sylliet, Wallich. Assam, Kliasya, Kuniaon, 

 and Cliittagoiig, Griffith, Hooker fil. and Thomson. — Var. fi. Nepal, If'alUch. 

 Boutan, Griffith. Sikkim, Thomson.— Var. y. Martaban, Wallich. Khasya, 

 Griffith. Monlineine, Parish, Tho.i. Lobb. Sikkim, Ilooker fil. and Thomson. 

 — Different as are the extremes of the three species I have here united into one, 

 I think it is correct to do so. The terminal pinna is not unfrequently proli- 

 ferous. The species l)elongs to the same group as A. virens, and partakes of the 

 same normal venation. 



131. A. (Heteroneuron) rivulure. Hook.; "caudex creep- 

 ing thick as a goose-quill paleaceous, stipites angular palea- 

 ceous 4-5 inches long, that oi the fertile frond 12-14 inches; 

 sterile fronds nicnihranaceous 8-10 inches long glabrous 

 oblong acuminated pinnated towards the apex sinuato-pin- 

 natifid, pinnee entire oblongo-lanceolate or ovate subfalcate 

 proliferous ; fertile fronds small 4 inches long, sporangia 

 pale straw-colour." — Cyrtogonium, Brack. Fil. U. S. Expl. 

 Exp. p. 85. /. 11. NeurocaUis, Moore. 



Hah. Ovalau, Fiji Islands, Brackenridge. — I am unacquainted with this. The 

 venation is represented as uniformly reticulated, witli no included free veinlets, 

 and hence I presume Mr. Moore refers it to NeurocaUis. 



132. A. (Heteroneuron) serratifulium, Mert. ; caudex 

 creeping paleaceous, stipites 1-H foot long pale stramineous 

 scaly below; sterile fronds 1-H foot or more long membra- 

 naceous uniformly pinnated, terminal pinna long-petiolate, 

 the rest shortly so, 3-5 inches long oblong or oblongo-lan- 

 ceolate more or less acuminate sinuato-subcrenate, the base 

 cuneate or obliquely obtuse, petioles and rachis scurfy rather 

 than paleaceous, venation manifest, costules rather obscure, 

 veins anastomosing forming large subtriangular arcoles next 

 the costa, the rest of the areoles very irregular gradually 

 smaller towards the margin, terminal veinlets usually free ; 



fertile fronds with pinnce contracted 1|-2| inches long 3-6 

 lines wide oblong obtuse, the margin narrowly reflexed. — 

 Mert. in Klfs. En. Fil. p. GG. Bolbitis, Schott, cum Ic. 

 Poecilopteris, Pr. Moore. Hook. Gen. Fil. t. 81. Z? {vena- 

 tion very good). Heteroneuron, Fee, Acrost. p. 94. t. 55. y. 

 3 [fertile pinna only, nut. size, ivith the sori confined to the 

 veins). Acrost. fraxinifolium, Pr. {not IFilld.). 



Hah. South .\merica: Brazil, frequent, Mertcns, Raddi, Gardner, n. 217; 



