71. DAN^.A. 413 



distinct crisped wing tlivoughout ; fertile fr. on longer st. tlian tlie barren ones, 

 and the pinna3 more distinctly stalked and not so close. — Moore, Lid. Fil. p. 288. 



Hab. Tarapota, East Peru, Spruce 4710. 



4. D. Lepricurii, Kze. ; st. 6-9 in. 1., slender, nearly naked, with 8-4 distinct 

 articulations ; barren fr. G-9 in. 1., 8-4 in. br., with about G sessile pinnce on 

 each side, whidi are H-2 in. 1., J in. br., oblong-falcate, the edge crisped, the 

 lowest pair nearly equalling the others ; texture subcoriaceous ; veins very fine 

 and close, usually once forked ; rachis slender, swollen at the nodes, slightly 

 winged upwards ; fertile fr. on a longer st. than the barren one, the pianse 

 Bimilar, but smaller. — Kze. t. 60. 



Hab. Guiana and the Amazon Valley. — This forms the section Artlirodancea of Presl, 

 characterized by a distinctly articulated stem. 



6. D. humilis, Moore ; 5^. of barren fr. 2-4 in. 1., furfuraceous, with 0-1 node ; 

 barren fr. about 1 ft. 1., 2-3 in. br., with 15-25 close pinnm on each side, the 

 central ones 1| in. 1., |^-§ in. br., distinctly stalked, the point blunt, the edge 

 slightly crisped, the base on both sides rounded or subcordate ; lower pinnce 

 rather shorter than the others ; texture fleshy-herbaceous ; rachis furfuraceous, 

 distinctly winged throughout ; veins fine and close ; fertile fr. like the other, but 

 smaliei". — Moore, hid. Fil. p. 286. 



Hab. El Ecuador, Sccmann 996 ; and a plant gathered by Dr. Spruce in East Peru 

 (4769) is probably the same. Some of Dr. Seemann'a specimens are proliferous at the 

 apex. 



6. D. alata. Smith ; st. of barren fr. 2-6 in. 1., densely furfuraceous, with 0-1 

 node; barren fr. 12-18 in. 1., 6-8 in. br., with 8-10 pinnce on each side, the 

 central ones short-stalked, 8-5 in. 1., | in. br., the apex acuminate or cuspidate, 

 serrated, the base rounded, the lowest pair distant and much reduced ; texture 

 subcoriaceous ; rachis and midrib beneath furfuraceous, the former distinctl}"^ 

 winged in the upper half ; veins conspicuous, usually simple ; fertile fr. on a 

 longer st., the pinnae stalked more distinctly, 1-3 in. 1., acute or obtuse, 3-4 lin. 

 hi:— Plum. t. 109. BL c^- Gr. t. 18. 



Hab. West Indies. 



7. D. Augusta, Karst. ; st. of barren fr. 3-4 in. 1., slender, naked, with 1-2 

 nodes ; barren fr. about 1 ft. 1., 6-8 in. br., with 4-5 pinnce on each side, which 

 are 3-4 in. 1., ^-| in. br., the upper ones sessile, the lowest stalked and slightly 

 reduced, all narrowed to the base, the upper part inciso-crenate ; texture herba- 

 ceous ; colour dark-green ; veins not very close, usually once forked ; rachis 

 naked, slightly winged upwards ; fertile pinnce similar. — Sturm in Mart. Fl. 

 Bras.fasc. 23. p. 159. 



Hab. Venezuela, Karsten. 



8. D. Moritziana, PresI ; st. of barren fr. 8-12 in. 1,, slightly furfuraceous, 

 •with 1-2 nodes ; barren fr. 12-18 in. 1., 6-10 in. br., with 10-12 piniice on each 

 side, all sessile or nearly so, 8-5 in. 1., \A in. br., the apex acuminate or cus- 

 pidate, sharply toothed, the base cuneate, the lowest pair not distant or reduced ; 

 texture subcoriaceous ; veins close, mostly once forked ; rachis nearly naked, 

 slightly winged towards the apex; fertile pinnce l|-2 in. 1., ^ in. br. — Fresl, 

 Suppl. 6. p. 35. 



Hab. Columbia to Peru. — Midway between alata and elliptica. 



9. D. stenophylla, Kze. ; st. of barren fr. about 1 ft. 1., naked, with 2-3 nodes ; 

 barren fr. 1^-2 ft. 1., 6-10 in. br., with 12-15 pairs of pinnce, the upper sessile, 



