﻿156 17. NEPHROLEPIS. 



Indusia of the former sori reniform, attached by the sinus, the lohes some- 

 limes meeting or overlapping and then the indusia hecoming round and + 

 peltate, opening all round the edge or nearly so, those of the latter ones 

 2-valved & marginal or transversally oblong to linear & submarginal, attached at 

 the inner side of the sori, opening outwardly, as in Lindsaya. 



Rhizome erect, creeping or scandent. Stipes adherent to the rhizome. 

 Fronds pinnate; pinnae articulate to the rachis. 



Tropical and subtropical. 



Arrangement of the sections. 



$1. LINDSAYOPSIS. Sori transversally oblong or linear, marginal or sub- 

 marginal, uniting the apices of 2 or more veins. Indusium 2-valved & 

 marginal or transversally oblong to linear k submarginal, attached at the 

 inner side of the sorus, opening outwardly, as in Lindsaya. 



§ 2. EUNEPHROLEPIS. Sori round or reniform, intramarginal. Indusium 

 reniform, attached by the sinus, opening all round the edge or nearly so. 

 Hk. Bk., Syn. Pil., tab. V, fig. 4S ; Diels, in Engl. & Prantl, Nat. Pfl. 

 Fam., P, fig. 111. 



1. LINDSAYOPSIS. 



§. Fertile pinnae lobed, the lobes small, transversally oblong, forming with the 

 equal-shaped indusia 2-valved involucres to the sori. (1) N. dicksonioides. 



$.§. Fertile pinnae entire or broadly crenate. Indusia quite as in Lindsaya. 

 if. Sori and indusia continuous along the margin of the pinnae. 



(2) N. acutifolia. 

 ;|<.>K. Sori and indusia interrupted especially towards the apex of the pinnae. 



(3) N. lindsayae. 



(1) M. flickisoiiioicles, Christ, Fil. Saras., Ill, 241; Farnkr. d. 

 Erde, fig. 907, n, o, p &; q; Dicksonia nephrolepioides, Christ, 1. c. 



Fronds pinnate, 1—2 M. long, ± 20—25 c.M. broad. Pinnae linear, 

 sessile, acuminate, + spreading, ± 1 % c.M. broad, the base rounded, truncate 

 or slightly cordate; the higher and lower piimae commonly sterile, entire, the 



