DAVAMJA. 175 



{sub/alcate), the upper forming the Sflf/ment of a circle, and 

 more or less toothed or lobed or serrated. Lobules soriferous. 

 Saccoloma, Pr. Liudsoea, Bliime, Kze. and others. ('Hook. 

 Gen. Fil. Tab. CXIV. B.) 



Obs. The present is a tolerably natural sroup, in liahit closely allied to 

 Lindscca, and again, on the olher hand, through D. hnmi/ana, to our sub- 

 genus Saccoloma. The last mentioned species possesses, indeed, the invo- 

 lucres rather of tlie present group: hut the form of the pinnules and general 

 haliit le id me to ])refer ])lacing it amongst Sdccoloma. In one species, I). 

 Kunzcana, there is a disposition in the veins to become reticulated. 

 * Simph/ pinnate. 



58. D. Bor//ana, Pr. ; caudcx very long stout creeping on 

 trees and scandent, fronds rigid membranaceous linear-lan- 

 ceolate elongate pinnated attenuated at the base, pinna? half 

 oblong obtuse or acute obli(iuely cuneate at the base, lower 

 margin entire quite straight, u])per lobulato-crenatc often ser- 

 rate, ])rineipal vein parallel with and close to the lower mar- 

 gin giving out upwards 5 or 6 simple or forked veins, sori 

 transversely oblong shallow half-cup-shaped inserted at the 

 base of almost every lobule. — Pr. Reliq. Hank. i. p. 66. 

 Hook, et Grev. t. 143. Dicksonia rcpens, Bory., Voy. ii. p. 

 323. Sw. Syn. Fit. p. 138. Willd. Sp. PI. v. p. 482. Da- 

 vallia repens, Desv. D. Macroeana, Hook, et Am. Bof. of 

 Beech. Voy. p. 108 (younger state, ivhich is also ihe Odonto- 

 loraa Hookeri, ./. Sm.) Odontoloma Boryanum, »/. 8m. — 

 j3. lobules serrated. Hook. Gen. Fil. t. 114, B. Presl, Tent. 

 Pterid. t. 4,f. 20. 



Hab. On trunks of trees; Bourbon, Bori/. INIauritius, Neraud, Telfair, 

 Wallich, Carmichnel. Pliilij)pine Islands, Ilcenke, Cumiufj, n. 50. Brah- 

 makoond in Upper Assam, and Khasiya hills, Griffith. Sandwich Islands, 

 Macrae, Barclmj, Jkcchci/, Nif/lttinf/alc. — An elegant Fern, climbing over 

 the trunks of trees, with a long scaly caudex, at length naked, glabrous and 

 shining brown. Stipes and rachis stout, rigid, straw-coloured, frondosc of- 

 ten to the very base. Fronds about a fool long. Pinna, though thin and 

 semitransparent, of a firm and, as it were, rigid character, scarcely an inch 

 long : the upper margin more or less crenalcd with little lobes, and, as re- 

 presented in the 'Genera Filicum,' occasionally serrated. Sori sometimes, 

 though rarely, confluent, giving the plant still more the character of Liiul- 

 saa. 



59. D. pulcJielld, Hook. ; small slender, caudex creeping 

 filiform with scattered scales, frond linear-lanceolate ])innated 

 rather flaccid, pinnic approximate oval subdiniidiate obtuse, 

 lower margin slightly curved, ui)])er with 3 or 4 broad irre- 

 gidar crenatures, ])rincii)al vein diverging upwards from the 

 lower margin and bearing 2 or 3 sim])le or forked veins, in- 

 volucres small subrenifonn inserted at the base of the lobtdes 

 rarely confluent, stii)es and rachis firm straw-coloured filiform. 



