^ ii. NErilUODIUM, § L.VSTUEA. 2G3 



20. N. (Last.) attcnuatmn, Baker ; st, 1 ft. or more 1., firm, glossy, naked ; 

 /;•. y-± ft. 1,, 2 ft. l)r. ; jiinme 9-12 in. 1., |-| in. br., very acuminate at the point, 

 the edge cut threeMjuarters of tiio way clown into entire, sjjreadim,--, blunt lobes 

 1 lin. br., the basal lobes much nnluced, lower pinnae slightly stalked ; texture 

 sul)coriaceous ; rachis naked; under surface glandular; vciukts 12-10 ou a 

 side ; sori in a close row near the midrib. — Lastrea, J. Sin. {not Brack.). 



Hab. Philippines, Cuming, 327. — Habit oi Bidymochlcena polycarpa. 



21. N. (Last.) abruptum. Baker ; st. \\ ft. 1., angular, slightly villose above ; 

 /;•. 2-3 ft. 1., 1 ft. or more br. ; pinme G-8 in. 1., 1 in. br., cut down to a broadly- 

 winged rachis into close, acute, falcate, entire lobes \ in. br., the basal IoIjcs 

 rather reduced, and the i)inna> on the upper side cut off in a slight curve ; texture 

 subcoriaceous, rigid ; rachis and both surfaces nearly naked ; veiiilcts prominent, 

 12-lG on a side, with the sori near the apex. — Aspid. Kze. Mttt. {non Bhiine). 



Hab. Peru. — General habit and texture of N. invisum. 



22. N. (Last.) Sloand, Baker ; rhizome stout, wide-creeping, scaly ; st. 1-2 ft. 

 1., smooth ; Z^-. 3-4 ft. 1., 1-2 ft. br. ; jnnnce G-12 in. 1., |-f in. br., cut down 

 nearly to the rachis into entii'e, linear-subfalcate lobes 1 lin. br., the basal ones 

 the largest ; texture subcoriaceous, rigid ; rachis and under sirrface naked or 

 finely villose; reinkts 10-1.5 on a side, with the sori midway between the edge 

 and midrib. — Polyp, invisum, Sw. non Forst. N. macrourum and Serra, Ilk. 

 Sp. 4. p. 96-8. 



Hab. Mexico and Cuba, southward to Brazil and Peru. — A larger and more rigid 

 plant than iV. ixUens, with narrower and ruore acute lobes, and closer and more pro- 

 minent veinlets. 



23. N. (Last.) immersuin, Hk. ; st. tufted, 2 ft. 1., or more, naked, sub- 

 stramineous ; fr. .3-4 ft. 1., 1-2 ft. br. ; piniice often 1 ft. 1., 1-H in. br., cut 

 down very nearly to the rachis into spreading linear lobes 1 lin. br., with more 

 than their own space between them ; texture papyraceo-herbaceous ; rachis and 

 under surface naked or slightly pubescent and glandular; veinlets 10-20 on a 

 side ; sori submarginal, immersed so as to project on the upper surface; invol. 

 subpeltate.— ///(-. Sp. 4r. p. 112. 



Hab. Assam, Philippines, Malaccas, N. Caledonia. — Perhaps the involucre would 

 justify our placing this in Aspidium, but in other respects it comes near the following 

 four species. L. caudicidala, Presl, is said to differ from this by its medial sori. 



24. N. (Last.) Spelei, Baker; st. 1 ft. 1., stramineous, slender, fibrillose ; fr. 

 18-24 in. 1., 9-12 in. br. ; pinnce 4-6 in. 1., 1 in. br., cut down very nearly to 

 the rachis, entire, those of the fertile frond 1 lin. br., those of the barren frond 

 Avider; texture papyraceo-herbaceous; main rachis and that of the pinnre slightly 

 fibrillose ; under side naked ; veinlets 8-12 on a side ; sori midway between the 

 edge and midrib; invol. subpeltate. 



Hab. Jolianna Island, Capt. Spelce, Dr. Kirl- ; Angola, Wehvitzsch. — This comes ne.tr 

 the last, but tiie texture is thinner, the veinlets are fewer, and the sori medial, and nut 

 immersed. A plant from the Cameroon Mouutaius differs only by its more scaly 

 rachises. 



2.5. N. (Last.) cirrkositm, Baker; st. 9-12 in. 1., tufted, slender, glanduloso- 

 pilose, and fibrillose, especially below ; st. 1 ft. 1., 6 in. br. ; pinna? spreading, 

 3 in. 1., ;s-| in. br., cut down very nearly to the rachis into linear-oblong entire 

 lobes f in. br. ; texture herbaceous ; rachis fibrillose and viscose, and midrib 

 beneath slightly so ; veinlets 5-6 on each side, with the sori nearly terminal. — 

 Aspidium, Schnm. and Thonn. N. crinibulbon, Hk. Sp. i. p. 92. t. 244. 



