18() DAVALLIA. 



and linear with a much altcnuated base, always glabrous. Veins 

 cither single, or solitary in the centre of each narrow segment, 

 dividing and forked with nearly parallel branches to meet a 

 forking of the segment. (Presl, Tent. Ptericl. Tab. 4, f. 27.) 



Obs. The present appears to me an extremely natural group, havini? 

 assuredly a peculiar habit, and sori that resemble nearly as much 

 those of some Lindscea as the type of Davallia ; yet no one that I am 

 aware of has sought to separate it from the latter genus. Presl, indeed, has 

 placed some in his§ C'oljx'soria, which, if I understand them rightly, ought 

 unquestionably to be referred to his § Odontosoria. 



* Fronds not scandent, unarmed. 



81. T>. lennifolia, Sw.; caudex creeping (short?) woolly 

 with subulate ferruginous scales, stipes long, frond erect 

 ovato-lauceolate generally elongate glabrous subcoriaceous 

 brown when dry bi-tri-pinnate with the rachis com])ressed 

 and winged (or in other words bitripinnatifid), the segments 

 or ultimate divisions approximate forked linear- cuneate trun- 

 cate the apex slightly erose, involucres terminal and solitary 

 or in pairs short (transversely) oblong slightly erose. — Sw. 

 Sy}f. Fil. p. 133 and 350. Willd. Sp. PI. v. p. 477, (excl. 

 ihe syn. o/B. venusta, Sc/ik/t. Fil. i. 128). Pr. Tent. Plerid. 

 L 4, /. 27. Bl. En. Fil. Jav. p. 239. D. reraota, Kaulf. 

 Hook, et Am. Bot. Beech. Voy. p. 108. Bory, in Duperrey, 

 Voy. Bot. p. 280. Adiantum cuneatura, Forst. Prodr. {not 

 L.) — $. segments broader. 



Hab. East India and East Indian Islands, probably general. Assam, 

 Griffith, Jenkin,^. Nepal, and Kamoun, Wall. Sylhet, De Sylva. Kha- 

 siya, Griffith. Madras Peninsula, Wight. Mauritius, (Sw.) Wallich Cat. 

 n. 245, and others. China, Beechey. Java, Blume, Millett. Ceylon, 

 abundant, 3Irs. Gen. Walker and others. Sandwich Islands, Macrae, 

 Barclay, ^-c. Madagascar, Dr. Lyall, Boyer. — /3. Luzon, Cuming, 

 n. 59. China, Beechey. Bonin {Herb. Imp. Acad. Petrop.) — A well marked 

 species, less variable than many of the genus. It appears to be wholly 

 confined to the tropical countries of the old world. Those who, like 

 Sprengel, speak of it as a native of the West Indies, unquestionably 

 confound the D. clavata with it, mistaking Schkuhr's figure, which is 

 nevertheless a very excellenl one. 



82. D. tricJiomanoides, Bl. ; " frond sid^triplicato-pinnate 

 membranaceous glabrous, pinnae subrhombeo-ovate rather 

 remote, pinnttles tra]iezoid oblong deeply pinnatifid (lower 

 ones deeply pinnatifid), segments narrow cuneato-linear 

 obtuse subbifid, fertile ones truncato-emarginate at the apex 

 with a solitary sorus, segments oblong truncate, rachis mar- 

 gined above and as well as the subtrigonal stipes glabrous." 

 Bl. En. Fil. Jav. p. 238. 



Hab. Mountains of Java and the Moluccas, Blume. — "Differs from 



