138 TKICHOMANLS. 



Hab. Java, and (i. Island of Nusa Kambangang, Blume. — " Very neav 

 T. meifolium, Bory in Willd., which differs in the smaller fronds and hairy 

 rachis." 



68. T. polyantho,% Hook. ; tufted tall rigid, fronds oblong 

 or ovato-lanceolate tapering below pinnate, pinna; lanceolate 

 horizontal subfalcato-decurved bi-tripinnatifid, the segments 

 linear obtuse, involucres supra-axillary copious lai-ge free 

 cani])anulate upper half very thin and meinbranaceous, the 

 mouth spreading, receptacles wholly included, stipes and 

 slightly margined rachis stout terete scabrous and more or 

 less hispid. — Hook. Ic. Plant, v. viii. t. 703, Hymenophyl- 

 lum polyanthos. Hook, in Nightingale's Oceanic Sketches, 

 App. p. 132, [non Sw.) 



Hab. Pacific Islands, Sir Thos. Niyhtingale. — Stipes 3 — 4 or 5 inches, 

 very stout, as is the racliis. Frond 1 foot high, 4 — 5 inches broad. Very 

 remarkable in the nature of the involucres, which are quite unlike any 

 others ; large, exactly campanulate, gh'ssy, membranaceous, especially the 

 upper pellucid half, in texture and form more resembling those of Hi/me- 

 nophjUum than of Trichomanes, but they are not at all 2-valved : the re- 

 ceptacles also are quite included in the involucres in every instance. 



69. T. SmiiJiii, Hook. ; tufted erect rather small flaccid, 

 fronds slender lanceolate pinnate, lower pinnae remote short, 

 upper ones crowded and larger, all subpalmato-pinnatifid, 

 segments elongated remote spreading ultimate ones much 

 elongated, the cells large linear transverse arranged in slight- 

 ly oblique longitudinal lines between the costa and the mar- 

 gin, the margins alone with a series of small quadrangular 

 cells, involucres supra-axillary on short segments narrow ur- 

 ceolate dark brown coriaceous slightly winged below, the 

 mouth spreading, stipes filiform slightly hairy. — Hook. Ic. 

 V. viii. t. 704. — T. angustatum, J. Sm. En. Fil. Philipp. {not 



^Carm.) 



Hab. Philippine Islands, Cuming, n. 208 and 358. — Stipes slender, dark 

 brown or black, 1 — 3 inches high, slightly hispid, especially at the base. 

 Fronds scarcely a span long, extremely delicate ; lovver pinnae gradually 

 smaller, remote, but soriferous, with few, short, narrow segments, divided 

 from the very base and spreading ; upper ones much larger, more crowded, 

 the segments also rather broader and more elongated, esjiecially the ulti- 

 mate ones. The cellular structure of this is quite unlike anything with 

 which I am acquainted, and is best understood by a reference to our figure. 

 Involucres small, of a coriaceous texture. 



70. T. luccns, Sw. ; tufted, caudex scarcely creeping se- 

 tose, fronds much elongated oblong-lanceolate attenuated 

 very flaccid pellucid pinnated, pinnge sessile numerous ap- 

 proximated spreading rufo-villous especially on the back at 

 the base linear acuminate membranaceous deeply sinuato- 

 pinnatifid transversely waved and crisped, lower ones tripin- 



