636 FILICES. [Trichomanes. 
voluere and tl z of the frond bring it nearer to di pyxidiferum, L., from 
which - pipiens however, in the broad tube of the semiimmersed involucre and in the 
absence of s veins. In both 7. filicula and T. pan np the frond is also much 
deeper r divided, wil the rhachis free below 
3. T, davallioides, Gaud. Bot. Voy. Were p.378.— Rhizome wide-creeping, 
of the size of a crow’s quill, fibrillose with stiff dark opaque hairlets of 
few articulations, Stip. distichous on the rhizome, distant (1—3‘), naked 
or pubescent at the base, '/s—5‘ long, marginate. Frond rather flaccid, 
dark-green, lanceolate, broadest at the meds tripinnatifid, the main 
rhachis narrowly winged. Pinnae 18—24 on a side, anadromous, linear- 
lanceolate, 2—5‘ long and 3/4—1!/2‘ broad pate the middle, cut at open 
angles into rhomboido-oblong, rather obtuse segments of 4—9“ in length, 
which are again divided into spreading oblong and cuneate lobes, those of 
the lower segments notched at the subtruncate apex into 2—6 short obtuse 
teeth. Sori in the axils of the tertiary lobes, 1—6 to a secondary seg- 
ment. Invol. thick, brownish, over 1“ long, tubular, with entire spreading 
mouth, free or slightly margined. mg as often several times longer 
than the involucre. — Hook. Sp. Fil. I, 143. — Carruth. in Pa Vit. 
p. 342.— T. radicans, Hook. Sp. Fil. I, 125, and Synops. Fil. p. 8 Oo 
the Hawaiian plant; also Brackenr. and Luerssen, ll. cc. — 7. Pie es 
Van d. Bosch. * 
Quite common in damp forests of above 2000 ft. eateseanyt Sages nearly every tree. 
Nat. name: «Kilau». — Our specimens are quite unifor well be combined 
with the T. radicans, Sw., from the Atlantic islands or pein in cae ie the shorter but 
more divided frond is broadest at the base, as well as the pinnae, and the angles of 
riot Be i t ir re- 
i 
in 0 a -y of 7, 
radicans — T. Luschnatianum, Presl — has inde he lowest pinnae dwarfed and 
oe. but is in all other respects a true 7. radicans and cannot be confounded with 
ant. 
4, | cyrtotheca, sp. m. — Rhizome climbing as in no. 3, woolly with 
crisp reddish-brown thin translucent hairs of many articulations. Stip. 
at distances of 1—3‘, terete or most faintly margined, 2—4’ long, bril- 
when dry, bi-, tripinnatifid, the rhachis very narrowly margined, often 
only in the axils, and faintly fibrillose. Primary pinnae 10—14 on a side, 
stipitate, ascending, ovate to ovate-lanceolate, the longest 2—4'/2’ long 
amination, pinnatifid at acute angles in the upper portion, 
but pinnate to a faintly margined rhachis nearer the base. Secondary 
segments or pinnules ascending, narrow ovate-oblong, obtuse, the lowest 
with a cuneate base and substipitate, their margins cut halfway or more into 
narrow oblong or obovate lobes which are sharply 2—5-toothed at the 
top. Veins close, forking, each lobe or segment with 2—9 branches, 4 
