﻿422 53. DIPLAZIUM. § 2. ANIS060NIUM. 



h.h. Simple frond or lerminal pinna cimeate or rounded at the base. 



:^. Stipes scaly throughout. Fronds with — 3 lateral pinnae, on eacu 



side. (51) D. alismifolium. 



i(i.^. Stipes scaly at the base. Fronds with i — 6 lateral pinnae on 



mch side. (52) D. fraxinifolium. 



a.u. Fronds pinnate with more than 6 lateral pinnae on each side. 



§. Pinnae entire. 



%. Pinnae membranaceous, narrowly cuneate at the base. 



(53) D. angustatum. 

 :!|c.>)c. Pinnae subcoriaceous, rounded at the base. (54) D. pariens, 



§.§. Pinnae toothed, wavy or slightly lobed. (55) D. proliferum. 



a,a.a. Fronds at least 2-pinnale (*). 



1. Largest pinnae to 25 c.M. long. 



2. Pimmlae rounded at the base. (56) D. Smithianum. 



3.2. Pimmlae truncate at the base. (57) D. spinulosum. 



1.1. Largest pinnae + 30 c.M. long or longer in the fully developed fronds. 



(58) D. esculentum. 



* (49) D. corclif«!>liueti, Bl., Christ. Farnkr. d. Erde, 221 ; Hk., 

 Icon. PL, X, tab. CMXXXVI; Asplenium cordifolum, Mett., Hk. Bk., Syn. Fil., 

 243; A. integrifolium, Mett., Rac, Flor. Btz., I, 230, p.p.; Callipteris cor di folia, 

 Copel. (not /. Sm.), Polypod. Philipp., 70; Anisogonium cordifolium, Bedd., 

 Ferns Br. I., II, tab. CCGXXXI. 



Rhizome erect, densely clothed with brown, lanceolate scales. Stipes 

 clustered, + 20 c.M. long, firm, erect, scaly below. Fronds ± 25 — 35 c.M. 

 long, + 10 c.M. broad, undivided, acuminate, the edge entire or subrepand, 

 the base cordate. Below this there are sometimes 1 — 2 pairs of lateral pinnae, 

 which are ± erecto-patent, similar to the simple frond but smaller and nar- 

 rower, the lowest to + 15 c.M. long and + 5 — 7 c.M. broad. Texture coria- 

 ceous; surfaces naked; veins in groups of 3 — 4, anastomosing in the outer 

 half of the pagina. Sori reaching from the midrib + to the edge. 



Africa to Polynesia. 



* (50) O. Forbeiiii, C, Cfcr., Ind. Fil.; Asplenium Forbesii, Bk., 

 Ann. of Bot., V, 312. 



(*) See also W. proliferum, Thouars, var. robustnm. 



