150 22. DEYOPTERIS. §1. LASTHEA. 



edge cut "3— ',3-way down to the costa, the base truncate; lowest 

 pinnae a little abbreviated, deflexed. Lobes numerous, horizontal, linear, 

 somewhat falcate, + 3 — 4 mm. broad at the base, entire, or subcrenate 

 towards the bluntish apex;, lowest lobes mostly a little larger than the 

 next following. Texture Arm, rather chartaceous; surfaces naked; edges 

 sparingly ciliated; costae above grooved and hirsute, beneath terete, 

 deciduously hairy, glabrescent; costulae naked; veins naked; + 10—17 

 on a side, simple, arcuate-ascending, the lowest often meeting at the 

 apex, but rarely joining. Sori numerous, nearer the costulae than the 

 edge, at length confluent; indusium small, short-hairy, deciduous. 

 Celebes. 



{lb) E>. liiiulerbaehii. Bmtt., in Lautb., Beitr. Flor. Pap., I, 18. 



Stipes 22 cm. or more long, grooved on the face, fuscous, hairy and 

 sparingly scaly, as are the rachises, the scales long-triangular from a 

 cordate-peltate base, acuminate, subentire. Fronds long-deltoid, + .43 

 cm. long, to 14 cm. broad. Pinnae ± 24 on a side below the pinnatiM 

 apex, sessile, long-deltoid, somewhat remote, horizontal, the lower deflexed, 

 the lowest the longest, x 7 '/., cm. long, to 1 ' ^ cm broad, deeply 

 pinnatifid. Segments linear, ± 18 on a side, shortly acuminate, 

 crenulate, spreading, the lowest a Uttle produced, horizontal, the. largest 

 to + ',, cm. long and '/4 cm. broad. Texture papyraceous; upper surface 

 more or less copiously long-hairy on the costae, costulae and veins; 

 under surface hairy on the costae, nearly naked on the costulae and 

 veins ; veins to + 8 on a side, simple.. Sori numerous, to 6 on, a side, 

 medial; indusium large, subrotund, hairy and ciliated, persistent. 



New G-iiinea. 



(8a) D. ^ariensis, Copel., in Philipp. .Tourn., VF, 73; D. 

 basisora., Copel., 1. c. 



Stipes fuscous, grooved, pubescent in the groove. Fronds more than 

 60 cm. long, + 85 cm. broad, the rachis pubescent, provided with 

 deciduous, tuberculiform glands near the bases of the pinnae, on the 

 under side. Lower pinnae remote, deflexed ; central pinnae largest, + 

 22 cm. long, 2'/^ — 4 cm. broad, shortly petiolulate, acuminate, very deeply, 

 pinnatifid. Lobes straight or falcate, the lowest somewhat reduced, the 

 largest + 1 '/, — 2',.^ cm. long, S'/j — 4'^ mm. broad, entire, acute. Texture 

 coriaceous ; under surface sparingly puberulous on and between the veinsj_ 



