164 22. DEYOPTERIS. § 1. LASTREA. 



(39) D. edentula, O. Mtaie, C. Chr., Ind. Fil. ; Aspidium edentulum, 

 Kze, in Bot. Zeit., 1846, 474; A. edulentiim, v. A. v. B. {not Kze) ; Nephrodium 

 edentulum, Bk., Hk. Bk., Syn. Fil., 279; N. edulenium, v. A. v. B. [not Bk.). 



(40a) D. alpina, Rst., in Fed., Rep., XII, 173. 



Rhizome erect, the scales ferrugineeus, narrowly lanceolate. Stipes 

 ■+ 8 mm. (8 cm.?) long, castaneous, subflexuose, firm, scaly at the base, 

 the upper part hairy and scabrous, as is the rachis, the hairs ferrugineous, 

 articulated. Fronds lanceolate-oblong, + 13 cm. long by 6 cm. broad, 

 • 3-pinnatifid, acuminate, truncate at the base. Pinnae + 15 on a side 

 below the serrate apex, the lower opposite, subhorizontal, short-stalked, 

 lanceolate from a truncate base, bluntish; central pinnae largest, + 3 

 cm. long by 1 cm. or more broad at the base. Pinnulae + 10 on a 

 side below the inciso-serrate apex, ascending or suberect, subsessile, 

 elongate-oblong, obtuse, deeply lobed ; 3 — 5 lower pinnulae subremote, 

 contracted at the base, following decurrent on the lower side at the base ; ■ 

 lowest pinnulae largest, to 7 mm. long by 2 — 3 mm. broad. Lobes entire 

 or obscurely crenated. Texture rigidly coriaceous; surfaces sparingly 

 paleaceo-flbrillose ; veins simple or forked, immersed. Sori submedial on 

 the lower part of ■ the lobes ; indusium minute, ciliate and sparingly 

 yellow-glandular. 



Neiv Guinea. 



(406) D. athyi>iocai*pa, Copel., in Philipp. Journ., IIF, 344. 



Rhizome short, erect. Stipes ±^ 20 cm. long, purplish-black, 

 sparingly scaly above, more densely so towards the base with narrowly 

 lanceolate, castaneous scales. Fronds + 20 cm. long, 7 cm. broad, 

 acuminate. Pinnae often sessile, spreading, + 1 V4 cm. broad, obtuse, 

 pinnatifid nearly to the costa, the lower ones the longest, deflexed, with 

 the segments lobed nearly '/j-way down to the costula. Segments + 

 10 on a side, linear-oblong, obtuse, the highest entire, the lowest inciso- 

 serrate, minutely ciliate. Texture membranaceous; surfaces glandulose; 

 upper surface pilose on the veins; costae villose above, naked beneath; 

 rachis castaneous in the lower part beneath, otherwise green, villose on 

 the upper and nearly naked on the lower side; veins simple. Sori 

 polymorphous, partly nephrodioid, more generalh^ athyrioid, rarely 

 asplenioid; indusium hardly coriaceous, glandulose. 



Borneo. 



