• 



94 18. DAVALLIA, §§§§ EUDAVALLIA. 



br. ; phinl. thinly herbaceous, cut down on the upper side into very slender filiform 

 simple or forked segments to a recurved filiform rachis ; sori small, nearly 

 terminal on the dilated apices of the segments ; invol. suborbicular. — Hk. Sp. 1. 

 p. 177. t. 54. 



Hab. Philippine Islands— A very distinct and beautiful species, easily recognizable 

 by its sleuder filiform segments. 



§§§§ Eudavallia. Invol. coriaceous, semicylindrical or half-cupshaped, attached 

 at the sides as well as the base. Sp. 31-48. 



+ Prosaptia, Presl. Hahit of Lomaria Spicant. Invol. quite homogeneous with 

 the texture of the frond. Sp. 31-32. 



31. D. (Prosap.) Emersoni, Hk. & Gr. ; fr. tufted, sessile, 6-12 in. 1., nearly 

 1 in. br. at the widest part, linear-lanceolate, cut more than halfway down to the 

 rachis into numerous linear-oblong, or at the lower part triangular, lobes ; texture 

 coriaceous ; sori 1 to 6, placed round the edge of the lobes. — Hk. Sp. 1. p. 161. 

 Hk. & Gr. Ic. Fil. t. 105. D. alata, Blume. 



Hab. Madras, Ceylon, Penang, Java, Borneo, and Philippine Islands. 



32. D. (Prosap.) contigua, Swartz; fr. tufted, sessile or nearly so, 12-18 in. 1., 

 1-1^ in. br., linear-lanceolate, cut down nearly or quite to the rachis into numerous 

 linear-acuminate or bluntish slightly-toothed lobes; texture coriaceous ; sori 2 to 

 8 to a lobe, placed in the teeth on their upper part. — Hk. Sp. 1. p. 161. Hk. & 

 Gr. Ic. Fil. t. 141. D. Preslii, Hk. Sp. \.p. 161. 



Hab. Ceylon, Java, and Polynesian Islands. 



ft Sci/phularia, Fee. Fronds 07ice pi?mate. Segments few, linear, 4-6 in. I., 

 ^-| ill. br., nearly entire. Sp. 33-34. 



33. D. (Scyph.) triphylla, Hk. ; rhizome stout, creeping, densely fibrillose ; st. 

 erect, strong, 2-4 in. 1. ; fr. ternate, the central segment the largest, 4-6 in. 1., 

 \-\ in. br., linear, scarcely toothed, cuneate at the base ; texture coriaceous ; sori 

 placed in close rows along the margin, edge to edge ; invol. semicylindrical. — 

 Hk.Sp.\.p. 162.^46. A. 



Hab. Singapore ; discovered by Mr. Cuming. — Veins more prominent than in the next, 

 of which it may be a reduced form. 



34. D. (Scyph.) pentaphylla, Blume ; rhizome creeping, stout, densely fibrillose ; 

 St. erect, strong, 2-4 in. 1.; fr. with a terminal segment and 2 to 3 pairs of lateral 

 pinnae ; terminal segment of fertile frond linear, 4-6 in. 1., \ in. br., of the barren 

 fi'ond broader and shorter ; lateral pnvnce similar, sessile or slightly stalked, 

 lowest pair sometimes with one or a pair of similar smaller jomi?j/. at the base ; 

 texture coriaceous ; sori in rows along the slightly-toothed margin ; invol. semi- 

 cylindrical. — Hk. Sp. \.p. 163. D. pycnocai-pa, Brack, t. 35. 



Hab. Java and Polynesian Islands. 



t+t Fronds ample, deltoid, tri- or quadripinnatifid, coriaceous in texture. Sp. 

 35-48. A well-marked group, all of the species of which closely resemble one another. 

 It has its head-quarters in Polynesia and S. E. Asia, and is entirely absent from the 

 New World. 



.35. D. Lohhiana, Moore ; fr. 12-18 in. 1., 6-9 in. br., lanceolate-deltoid, bi- or 

 tripinnatifid ; main rachis slightly winged above ; lower pinnce 4-6 in. 1., 2 in. 

 br., lanceolate-deltoid, acuminate, cut down to the rachis in the lower part into 

 linear- or deltoid-oblong blunt segm,^ onl}' the lowest of which are toothed deeply; 



