APPENDIX. 53. DIPLAZIUM. 513 



zontal, minute, divided at tlie apex into 2 divaricating, decurved tootiilets. 

 Fronds ovate-lanceolate, + 70 cm. long, 2-pinnate, acuminate. Pinnae 

 + 10 on a side; higher pinnae, lobed to deeply pinnatifid; central pinnae 

 largest, stalked, arcuate-ascending, ovate, to 25 cm. long, pinnate, acumin- 

 ate; lower pinnae deflexed. Pinnulae to ±. 8 on each side below the 

 terminal one; terminal pinnulae deltoid, serrate at the apex, gradually 

 deeply pinnatifid at the base; lateral pinnulae remote, more or less hori- 

 zontal, the higher adnate, the others sessile or subsessile, subobovate- 

 oblong; central or inframedial pinnulae of the largest pinnae largest, 

 5 — e'/j cm. long, 2 — 2'/, cm. broad at or above the middle, lobed % — '/j- 

 way down or somewhat more to the costa, serrate at the blunt or round- 

 ed apex, not rarely more .or less auriculate on one side or on both sides 

 at the truncate base; lower pinnulae more or less abbreviated and de- 

 flexed. Lobes spreading or subhorizontal, to 5 mm. each way, crenated 

 or toothed at the truncate or rounded apex, separated by narrow, acute 

 sinuses. Texture herbaceous; surfaces naked but the upper surface prov- 

 ided with deciduous, white-cretaceous, dot-like squamules on the vein 

 tips; main veins pinnate in the lobes; veins to + 5 on a side, simple, 

 suberect, upcurved, the lowest not reaching the margin. Sori to 4 on a 

 a side, the lowest the longest, often double; indusium persistent, brown. 

 — Young plants simply pinnate, with the fronds rather similar to the 

 largest pinnae of the adult plants but less copiously soriferous. 

 Siiniafra. 



% 3. EU-ASPLENIUM. 



(356) A. sqaiaiBiuliferum, ». A. ». n. in Bull. Btz., 1916, 



XXIII, 6. 



Stipes aggregate, short, like the rachis black-brown or castaneous 

 and copiously, deciduously chaffy, the squamules black or castaneous, 

 rather suddenly long-flliform-subulate from a broad, sparingly piloso-ciliate 

 base. Fronds pinnate, lanceolate or oblanceolate, 75 — 86 cm. long by 

 12'/j — I7V2 cm. broad, narrowed towards both ends but more gradually 

 Ferns and Feen Allies. 33 



