10 GLEICHENIA. 



long falcato-iiicurvcd lancecjlate acuminate deeply pectinato- 

 pinnatifid, rachis clothed with ferruginous chaffy hairs, the 

 segments linear horizontal obtuse or cmarginate, the recurved 

 margins and base beneath clothed with ferruginous hairs, sori 

 abundant, ca])sules 2 — 3. 



Hal). Surinam, Dr. Hostmann, n. 238; — My solitary specimen of this is 

 confined to the upper portion of a stipes with a twice-forked frond : the low- 

 er fork or dichotomy is not an inch long, but the branches or pinnae of the 

 upper fork are between 2 and 3 feet long, copiously and beautifully pecti- 

 nato-pinnatifid, 3 inches in diameter. It has perhaps the longest pinnte of 

 any known species. 



28. G.Jlagcllaris, Spreng.; stipes rounded "chaffy" {Spr.) 

 at length smooth, fronds re])eatedly dichotomous, branches 

 clongato-lanceolate pinnatifid, segments linear-lanceolate ob- 

 tuse very glaucous beneath and there at the base of the costa 

 clothed with ferruginous wool. — Mertensia flagellaris, Bory. 

 M. muricata, Sieher. 



Hab. Mauritius, Sichcr, Syn. Fil. n. 18, et Fl. Mixt. n. 277, Mr. Tel- 

 fair, Bory, Bojei-. — A distinct and well marked species, the narrow leafy 

 fronds copiously dichotomous, the lower branches spreading, the under side 

 singularly glaucous. None of my specimens possess fructification, although 

 I have many of them. 



29. G. {Merte)isia) hevigata^ Willd. ; stipes rounded or 

 nearly so with a marginal wing on each side, frond 3 or 4 times 

 dichotomous leafy, branches spreading, ultimate ones or pin- 

 nae lanceolate acuminate pinnatifid, segments linear obtuse 

 or refuse glabrous or slightly cobwebby at the costa paler but 

 not glaucous beneath, capsules about 4. — G, Javanica, Spr. 

 Sticherus la3vigatus, Pr. 



Hab. 5a\n {Willd.), Chas. Millett, Esq. — This comes near the preceding 

 but is truly distinct, and has broader pinnae and narrower segments. There 

 is an evident narrow wing on each side the stipes. 



30. G.ferruginea, Bl.; "stipes dichotomous rounded gla- 

 brous, branches above slightly channelled, fronds geminate 

 lanceolate submembranaceous deeply pinnatifid beneath clo- 

 thed with rusty down, segments linear rather obtuse, capsules 

 about 6 globose sessile." Bl. Fil. Jav. p. 249, [not Mertensia 

 fcrruginea, Desv.) 



Hab. Mountain woods, Java, Blume. — The author observes of this that 

 it differs from Gleichenia immersa, Hook. & Grev. {G. fubescens of this 

 work), in its semipinnatifid branches. 



31. G. vestita,^\.; " stipes dichotomous paleaceous plane 

 above, fronds bifurcate deeply pinnatifid decurrent on the 

 stipes coriaceous glaucous beneath, segments half-lanceolate 

 obtuse the margin revolute, somewhat pubescent on the cos- 

 ta beneath, capsules 4 — 5 subglobose sessile, rachis densely 

 chaffy beneath." Bl. Fil. Jav. p. 249. 



