17. TBIClIOilANKS, §§ EUTBICU0MAXE3. 77 



28. T. calvesccns, V. D. B. ; st. 1-2 in. 1., filiform, naked ; fr. about \ in. each 

 way, inversely triangular or riiomboiilal in general outline, flabellately divided 

 down nearly to the rachis into slightly dichotomous denticulate broadly linear 

 scgm.y with only a central costa in each ; sori 2 to 4, terminal on the central 

 segments ; invoL turbinate or obconical, sunk in the frond, with a free, l)road 

 dilated deeply and irregularly toothed naked two-lipped mouth. — V.D.B. 

 Suppl. 2. p. 115. 



Hab. N. S. Wales, Major Vicary. — Probably a mere variety of the last. 



29. T. Lt/allii, Hk. IMSS. ; st. 1-2 in. 1., slender, filiform ; fr. |-2 in. each way, 

 suborljicular in general outline, flabellately divided down very nearly to the 

 base into dichotomously-branched narrowly linear ciliated and minutely den- 

 ticulate segments ; soi'i 3 or 4, terminal on the segments ; invoL obconical, quite 

 sunk in the tube, the mouth ciliated, not dilated. — Hymenophyllum, Hk. fil. 

 Fl. N. Z. 2-1 G. 



Hab. Trees, south-west coast of the middle island, New Zealand, Dr. LyaU. — Quite 

 intemiediate between the typical Hymcnoph]jUa and Tnchomaiics in the shape of its 

 involucre, the breadth of the orifice of which nearly equals the depth of the tube. 



30. T. naniim, V. D. B. ; rhizome slender, wide-creeping ; St. very short ; fr. 

 not more than ^ in. each way, cuneate below, the outer margin rounded, central 

 portion not more than ^ in. broad, divisions simple or once branched ; ult. segm. 

 1^-2 lin. I. by j lin. br. ; texture thick but not rigid, surface somewhat undu- 

 lated, margin bounded by a thickened line ; a central vein only in each segment ; 

 sori 1 to 2 to a frond, sub-terminal, tube turbinate, not at all exserted, the 

 mouth dilated, undulated in irregular plications. — V.D.B. 2. Suppl. p. 122. 

 Crepidomanes, V. D. B. T. Kurzii, Beddome, F.B.I, t. 28G. 



Hab. Assam and Andamans. — Resembling T. intramarginale in texture, but quite 

 different in size, &c., and in division agreeing best with this section. 



***Fro)ids more or less deeply pinnatifid, but not trult/ pinnate. Sp. 31-57. 

 t 3Iain rachis distinctly winged throughout. Sp. 31-47. 



31. T. pusilliim, Swartz ; rhizome wide-creeping, tomentose ; /;•. nearly 

 sessile, 2-3 in. 1., ^-1 in. br., oblong or obovate, cuneate-attenuate below, once 

 deeply pinnatifid down to a broadly-winged rachis ; lohes linear or oblong, 

 toothed or deeply pinnatifid, texture membranaceous ; a central costa in each 

 pinna, with numerous erecto-patent secondary veins and spurious venules; sori 1 

 to 4, round the apex of the frond, tube exserted, mouth with two large rounded 

 lobes.— //X-. Sp. ]. p. 117. T. quercifolium, Hk. 8f Gr. Ic. Fil. t. 115. Hemi- 

 phlebium, V. D. B. T. Robinsoni, Hk. Baker, Linn. Proc. ix. tab. 8. fig. B, 



Hab. Tropical South America, from Mexico and the West ladies southward to Brazil 

 and Peru. Krauze kop, Natal, Robmson. 



32. T. Krausii, Hk. & Gr. ; rhizome wide-creeping, tomentose ; fr. sessile or 

 nearly so, 1-3 in. 1., \ in. br., oblong, attenuate or cuneate at the base, once 

 deeply pinnatifid down to a broadly-winged rachis ; lobes linear-oblong, nearly 

 entire, or toothed or sinuato-pinnatifid, texture membranaceous ; a central costa 

 in each pinna, with distant pinnate secondary veins passing gradually into spurious 

 venules ; son 1 to 6, on the apex of the frond, tube more or less exserted, mouth 

 with two large rounded lips.— -^-fc. Sp. 1. p. 120. Hk. & Gr. Ic. Fil. t. 141). 

 llemiphlebium, V. D. B. 



