256 ASPLENIUM, § EUDIPLAZIUM. 



nate or opposite, pinnules sessile oblong oljtuse acutely ser- 

 rated, sori oblong small oblique with the costa, stipes gla- 

 brous." Pr. Reliq. Hcenk. i. p. 47- t. 7- /• 2.—Metten. 

 Asplen. p. 184. Diplazium, Pr. Tent. D. ebenum, J. Sm. 

 in Hook. Journ. Bot. p. 408 [Cuming''s n. 29 only), not Met- 

 ten. Asplen. p. 187. D. melanopodiuni, Fee, Hme Mem. p. 85. 

 Metten. Asplen. p. 187- 



Ilah. Luzon, Ilcenke. Stipes 7 inches long. Frond 7-11 inches, Cuming, n. 29. 

 — If in a perfect state, this is one of the smallest of the compound Eudiplazia, 

 and my Luzon specimens of Cuming's n. 29 quite agree with this ; one speci- 

 men is a little larger and copiously soriferous, the other is about the same size as 

 Ha'nke's plant, but sterile. Stipes and rachis slender, lurid-blackish, caudex short, 

 thick, ascending, crinite with subulate scales. 



281. A. (Eudiplazium) arborescens, Metten. ; " caudex 

 creeping densely clothed with blackish ovate acuminated 

 scales, stipes dirty-stramineous below villous with lanceolate 

 scales above glabrous, frond 2-3 feet long coriaceous" 

 (rather submembranaceous) " opaque-green glabrous ovate 

 or oblong acuminate bipinnate, pinnte shortly petiolate 

 lower ones subovate superior oblong-lanceolate, pinnules 

 lower ones shortly petiolate from a truncated base on each 

 side subauricled, approximate auricles overlapping, oblong 

 acuminate pinnatifidly incised serrated at the apex, superior 

 ones with a broad adnate base oblong rather obtuse serrated, 

 secondary veins in the laciniee generally with the branches 

 undivided, lowest tertiary veins generally with an asplenioid 

 sorus directed towards the costa of the segments rarely di- 

 plazioid, sori elongate, involucre membranaceous entire." — 

 Mett. Fil. Hort. Lips. p. 78. /. 13. f. 19, 20. Asplen. p. 186. 

 Diplazium, Sw. Syn. Fil. p. 92. ' fVilld. Sp. PI. v. p. 354. 

 D. nigro-paleaceum, Kze. in Li»maa, xxiv. p. 270. Asplen. 

 diplazioides, Hook, et Am. Bot. Beech. Voy. p. 107- Diplaz. 



of determination, how much more so those of the more compound kinds, where, 

 besides the variations of individuals, there are the variations to be considered of 

 the pinnae, pinnules, and segments of one and the same large frond, of which 

 fragments only generally exist in the herbarium ! Swartz has two species in 

 this section, Dipl. escidenfum (an Anisogonium) and 7). arborcum, both from the 

 East Indies, mistaking, however, a pinna of the former for an entire frond, as we 

 are assured by Willdenow, who adds two new species from S. America. Mettenius 

 enumerates 49 ! the majority of them, however, a])))arently unknown to him. 

 But the most laboured of his, no doubt, accurate definitions, unless taken from 

 entire specimens, which scarcely exist in herbaria, are unavailable for practical 

 use, and I think it better to confine myself to such authentic specimens as exist 

 in my herbarium, or are generally acknowledged. 



