﻿3r. ^I>IA.1VTXJM, Ijinni. 



Sori roundish, obreniform, transversally oblong or linear, terminal on the 

 veins, the sporangia springing from the veins only (Eu-adiantum), or placed 

 both on the veins and the spaces between them (Adiantellum). Indusium of 

 the same shape, marginal, consisting of the modified, reflexed qiargin, bearing 

 the sori on its inner surface. 



Rhizome creeping or erect. Stipes often black and polished, not arti- 

 culate to the rhizome. Fronds erect or climbing (not in malayan material), 

 simple or commonly variously divided; leaflets inclined to be dimidiate, but 

 often cuneato-flabellate, the outer edge not rarely more or less deeply incised, 

 the laciniae generally finely toothed; veins free or sometimes anastomosing. Ferns 

 mostly known and cultivated under the name of »chevelure" or » maiden-hair". 

 Hk. Bk., Syn. Fil., tab. II, fig. 21 ; Dieis, in Engl. & Prantl, Nat. Pfl.Fam., 

 I*, fig. ISO C). 



Tropical and subtropical; some species also in the temperate zones. 



Arrangement of the sections and groups. 



$ 1. EU-ADIANTUM (incl. Adiantellum). Veins free. 



a. Reniforuiiae. Fronds simple. 



b. Oligosoriae. Fronds pinnately divided. Leaflets not cuneato- 

 flabellate. Sori linear, in continuous or interrupted lines. 



c. Polysopiae. Fronds pinnately divided. Leaflets not cuneato- 

 flabellate. Sori transversally oblong, or sometimes obreniform. 



d. Cuneatae. Fronds pinnately divided. Leaflets cuneato-flabellate, 

 + oblique, the petiole near the centre at the base. Sori obreniform, 

 or sometimes transversally oblong. 



• e. Pedatae. Fronds pedato-dichotomous, i. e. forked, with the secon- 

 dary branchings springing from the upper side of the 2 primary ones. 

 §2. HEWARDIA. Veins anastomosing. (Not in Malaya). 



(*) With view on tlie many beautiful species of this genus, which are much beloved as 

 ornamental plants, I inserted in this work the imported species (not the varieties got by cul- 

 tivation), which I know are found in our Indian gardens. 



