2l6 
The Ferns of South Africa. 
lanceolate, pointed, tapering gradually down to the base, where 
there is only a winged mid-rib but seldom a distinct stipe. Veins 
hidden, anastomosing. Sori oblong, oblique, as in Asplenium, 
immersed, medial. 
It generally grows among moss on stones in deep shade, often 
pendent. Roots furnished with black tomentum. 
This has the habit and appearance of Polypodium lineare, but 
the fronds are more succulent, and the sori elongated. 
Gymnogramme lanceolata. Hk. Sp. V. 157; Hk. and Bkr. Syn. Fil. 
387 ; Wood’s Natal Ferns, 35. 
Grammitis lanceolata. Sw. 
Polypodium loxogramme. Mett. Polyp. No. 216 ; Kuhn, Fil. Afr. 148. 
Asia, Polynesia, and Africa. 
Kaff. — Bazija (Baur), frequent in the forests, Perie, Frankfort, &c. 
Natal. — Common from Noodsberg to the Drakensberg (M‘Ken), Umpu- 
mulo, Greytown, &c., 3000 to 4000 feet (Buchanan), upper and midland 
districts (Wood). 
Transvaal. — (M‘Lea). 
Genus XXVIII. Vittaria. Sm. 
Sori sunk into the frond in a long line near each margin and 
without indusium. Frond simple, grass-like, with several veins 
anastomosing in young barren fronds, or united by the capsule 
bearing marginal veins. A small tropical genus of which we have 
one epiphytal species. 
137. Vittaria lineata. Sw. 
Plate CXXIX. Fig. 1. Natural size. 
Rhizome procumbent, stout, short, epiphytal, densely set with 
linear black scales. Frond two to twenty inches long, two lines 
broad, pendulous, thickly sub-coriaceous, glabrous, dark green, 
grass -like, with a blunt apex, prominent mid-rib, and narrowed 
very gradually into the firmer short green stipe. Sori in a line 
near each margin, often extending the whole length of the frond, 
