﻿17. NEPHROLEPIS. § 1. LINDSAYOPSIS. 157 



central ones fertile, longer and narrower than the barren ones, with the edges 

 shortly and regularly undulate or lohed, the apices of the lobes, which are 

 broader than deep, dilated Texture + coriaceous; veins of the barren 

 pinnae nearly straight, parallel, close, simple or forked, those of the fertile 

 ones oblique, curved, branched in the lobes. Sori marginal, 1 to each lobe, 

 uniting the 2 — 3 branches of each vein; indusia 2 valved, firm-membrana- 

 ceous, the outer valves consisting of the lobes of the pinnae. 

 Celebes. 



(2) l%f. acutifolia, Christ, Farnkr. d. Erde, 291, fig. 907, r, s & 

 y; Isoloma lanuginosum^ J. Sm., Bau. & Hk., Gen. Fil., tab. CII; Lindsaya 

 lanuginosa, Hk., Hk. Bk., Syn. Fil., 109; Hk., Spec. Fil., I, tab. LXIX, B; 

 Bedd., Ferns Br.I., I, tab. CXL; L. acutifolia, Desv., (oldest name). 



Rhizome stout, creeping, clothed with fibrillose scales. Stipes erect, stout, 

 10—15 c.M. long. Fronds 30—60 c.JVI. long, 7—10 c.M. broad. Pinnae 

 linear-oblong, nearly equilateral, 1 — 1 '/2 c.M. broad, the base truncate, slightly 

 auricled above, slightly rounded below, the edge entire or slightly toothed 

 towards the apex, wich is acute in the fertile, + blunt in the barren pinnae. 

 Texture coriaceous; rachis pubescent. Sori and indusia in cotinuous lines 

 along the edges, as in Lindsaya. 



Malaya; Burmah, Australia, Trop. Africa. 



* M. liiadiiayae, Christ, Bull. Herb. Boiss., VI, 837. 



Rhizome nodose. Stipes tufted, clothed like the rachis with soft, crisp- 

 ed, filiform scales. Pinnae numerous, close, straight or falcate, unequal-sided, 

 4 or more c.M. long, + 1 c M. broad, the younger ones slightly tomentose, 

 the sterile ones entire, the fertile ones broadly crenate; the upper base trun- 

 cate, auricled, the apex ± gradually narrowed, bluntish or acuminate. Veins 

 numerous, close. Sori 6 — 8 on each side, often forming a continuous line 

 interrupted towards the apex of the pinna; indusia of the same shape, 

 submarginal, as in Lindsaya. 



Sumatra, Halmaheira. 



$ ± EUNEPHROLEPIS. 



tt. Pinnae very small, roundish or flabelliform. (4) N. Duffi. 



u.a. Pinnae not very small, varying from oblong to linear, entire or crenate, 

 rarely lobed, pinnatifid or dicliotomous. 



