Descriptions of the Species . 
205 
prominent mid-rib is widely winged to the base. Venation rather 
obscure, but main veins run straight from the mid-rib to the 
margin about an inch apart ; these are connected by four to six 
arching veins, which again are connected by small veinlets forming 
numerous irregular small areolae, each containing several free 
veinlets. Sori abundant all over the upper part of the frond, 
minute, irregular, but absent from the larger veins, and thus 
placed in more or less arching lines between them. 
A crested form is common in cultivation. 
Polypodium irioides. Lam.; Hk. and Bkr. Syn. Fil. 360. 
Phymatodes irioides. Presl. ; Pappe and Rawson, 40. 
Polypodium punctatum. Swartz.; Kuhn, Fil. Afr. 151. 
Acrostichum punctatum. Linn. Sp. 7769. 
Tropical India, Australia, and Africa, growing on the ground, 
or epiphytal on trees. 
Kaff. — Mouth of St. John’s River (Sir H. Barkly), Umzimvubu (Drege). 
Natal. — Coast districts to Inanda (Wood), common to 500 feet alt. 
(Buchanan), Palmiet River near Clare (M‘Ken). 
Genus XXVI. Nothochla:na. R. Br. 
Sori marginal, without indusium. Fronds two to three-pinna- 
tifid. A small genus not naturally connected to any of the other 
non-indusiate genera, but closely related to Cheilanthes. In some 
of the species the margin is partly revolute over the sori, but there 
is no separate indusium. 
Synopsis of the species. 
127. N. Rawsoni. Frond linear-lanceolate, half- inch wide. 
128. N. insequalis. Frond oblong, both surfaces woolly. Crown set with 
reddish scales, stipe almost naked. 
129. N. Buchanani. Frond deltoid, stipe hairy ; both surfaces woolly. 
130. N. Eckloniana. Crown and stipe paleaceous or woolly. Frond 
oblong, upper surface naked, or nearly so. 
