THE FERNS OF SOUTH AFRICA 
250 
Transvaal. — Rietvlei, Belfast (Burtt-Davy, 7235); Letaba River (H. 
Junod, 2447); Marovuni (Burtt-Davy, 215); Haenertsberg (East- 
wood); Barberton (Miss Williams, 7 89); Mamotsinri (A. Junod, 215); 
Rosehaugh (J. M. Sim). 
Rhodesia.— Mazoe River (Holland); Mazoe, 5100 ft (F. Eyles, 328; 
E. Eyles, 10); Mr Edmonds’ farm, near Salisbury (Holland); Um- 
tali, in the hill districts (Mrs Bennett). 
139. Adiantum SULPHUREUM Klf. 
This is exactly like ordinary A. aethiopicum , but dusted 
all over the under side of the pinnules with yellow powder. 
The crown and young unfolding fronds are also more or less 
yellow with this waxy powder. 
It is placed under A. aethiopicum L. by Baker in Syn. Fit., 
and is maintained by Christensen as from Chili only, but our 
plants agree entirely with the American. If only for cultural 
purposes, it is best to retain the name A. sulphureunt , or other- 
wise it might be placed as a variety of A. aethiopicum L. 
Kaffraria. — Dordrecht (T. R. Sim); under rocks on hills near Cala, 
4000 ft, 1896; well dusted on the under side when young; less so 
when mature (Flanagan, 2838). 
Natal. — Boschfontein, Brackwal (T. R. Sim). 
Orange Free State. — Near Harrismith, not uncommon (Dr J, M. 
Wood; W. Nelson, 904); near Van Reenen (Dr Bews). 
D. Pteridinae. 
Genus 33. ACTINIOPTERIS Link. 
Frond flabellate, with narrow, radiating, simple or once 
forked segments. Sori linear, submarginal, one on each side 
the segment, opening face to face. This genus includes 
only the one distinct and curious little plant described below, 
and the list of synonyms shows that it has undergone a 
variety of generic names. 
140. ACTINIOPTERIS AUSTRALIS (Linn, fil.) Link. 
Plate 34. Fig. 2. Nat. size, c Section of pinnule, enlarged. 
Crown sub-erect, tufted, with abundant, lanceolate, brown 
scales. Frond coriaceous, fan-shaped, one to two inches 
broad, divided to near the base into four to six divergent 
pinnules, which are again divided into two to three linear, 
