152 DAVALLIA. 



lice (such as D. solida Vc.) With this Leucosteyia of Presl, Mr. J. Smith 

 has combined the Davalliee, parvula, fulcinella, chcBrophi/lla <kc. The ve- 

 nation is alike in all as to ramification, m at least there is no marked dif- 

 ference ; tlie veins coming from a central costa are simple or forked : in 

 some of the Ilumata gr^up, and in one of the EudavaUicP, they are pecu- 

 liarly broad and dark-coloureil. 



Siibgeii. I. HuMATA, Cav. Involucres orbicular or reniforin, rujid, 

 subinduraled, the sides as well as the apices free. Caudex long, 

 creeping, very scaly. Fronds small, coriaceous, entire or once 

 or more pinnatifidly divided. §§ Humata and Pachyjjleura, 

 Colposoriaj /V. in part. 



* Fronds simple entire, or, the fertile only, siniiated. 



1. D. heterophylla, Siu. ; caiidcx long creeping scaly and 

 liispid with the long reflexed points of the scales, fronds co- 

 riaceous stipitate arising from a scaly bulb, sterile ones ob- 

 long- or ovato-lanceolate acuminate entire often waved, fertile 

 ones linear-lanceolate acuminate deeply sinuato-pinnatifid the 

 lobes horizontal crenate, involucres reniform copious on the 

 crenatures of the lobes. — Sm. Act. Taiir. v. p. 415. WiUd. 

 Sp. PL V. p. 465. Sw. Syn. Fll. p. 130, and 337. Hook, el 

 Grev. Ic. Fil. p. 230. — Humata ophioglossa, " Cav. Prcel. 

 1801, y/. 678." — Davallia pinnatifida, Sw. Si//i. Fil. p. 130. 

 PVilld. Sp. PL V. p. 465. Humata pinnatifida, " Cav. FreeL 

 1801, ;/. 679."— Davallia lobulosa, WaU. Cat. n. 241. 



Hab. Malay Islands, probably general, {Swartz, Smith). Java, &c. 

 Blume, Zollinger, u. 920. Penang, Wallivh. Singapore, Thos. Lo^b. 

 Isle Samar, Cuming, n. 335. — An extremely beautiful species, with a very 

 long, creeping stipes, densely clothed with imbricated scales and coarsely 

 hispid from the long setaceous reflexed ])oints of these scales. At dif- 

 ferent distances, and from a scaly bud or bulb, the fronds arise, solitary. 

 Stipes i an inch to 2 inches long, "naked, slightly winged upwards. Fronds 

 3 — 5 inches long, but varying a good deal in width, quite entire though 

 sometimes waved at the margin. Fertile ones much narrower and longer, 

 deeply sinuato-pinnatitid, with more distant and more divaricating veins : 

 all the veins are, as it were, sunk and moderately slender, not very evident. 



2. D. angastala. Wall. ; caudex rather stout creeping 

 densely paleaceo- setose, fronds coriaceous lanceolate arising 

 from a scaly bulb entire or dentate acuminate, fertile ones" 

 generally much elongated obscurely sinuato- dentate, veins 

 all parallel simple or forked thickened, involucres small trans- 

 versely oval forming a single series along the margin. — IValL 

 Cat. 11. 242. Hook, el Grev. Ic. FIL t. 231. 



Hab. Trunks of trees, Singapore, Wallivh, Cuming, n. 367. Penang, 

 Lady Dalhousie. — A small-growing Fern, with the habit of the preceding, 

 but very distinct from it, especially in the broad flattened dark-coloured 

 veins, quite parallel even in the lertilc fronds, and in the smaller Iructili- 

 cations, which are all placed close to, and parallel with, the slightly cre- 

 nated margin. 



