3 J o 
THE FERNS OF SOUTH AFRICA 
Acrostichum barbarum. Linn. Sp. 77 92. 
Osmunda barbara. Thunb. Prod. 17 1; Thunb. AY. Cap. 732. 
Thdrn Africana Willd. Schl. Adum. 12; Kze, Linnaea , 10, 491; 
Pappe and Rawson, 47. 
Todea rivularis. Sieber. 
Sub-tropical Australia, New Zealand, and South Africa ; 
growing in wet open places. Pappe and Rawson and Lady 
Barkly say common all over the colony, but it is altogether 
absent from Kaffraria. In Natal it is abundant in wet woods 
in the lower districts, and Swynnerton speaks of it as “a large 
fern growing in dense clumps along the ledges of the, cliffs in 
the Rhodesia-Portuguese boundary mountains.” 
West. — Table Mountain and district, frequent; Capetown (Rev. F. A. 
Rogers, 3037); Wellington (M. Knobel, 965); Sneeuwkop, abov 
Bowesdorp, 1910 (Prof. Pearson, 5837). 
East. — Tzitzikamma (Dr Atherstone); near Grahamstown (MacOwan): 
Van Staaden’s River (Browning); Krakakamma (Zeyher). 
Natal. — Common from Palmiet to Inanda, Noodsberg, and Umpu- 
mulo, 2500 feet (Buchanan, Wood, McKen); Drakensberg (Kunze); 
Success (T. R. Sim); Eshowe (Kelly). 
Transvaal. — Kloof of Mamotsinri (Burtt-Davy, 263). 
Rhodesia. — Chimanimani Mts, 7000 ft (Swyn. 830). 
Genus 52. Osmunda Linn. 
Fertile pinnae with almost no lamina, and in our species 
confined to the upper part of the frond, while the lower part 
is foliaceous and barren. A small genus of nine species, 
mostly belonging to the temperate zones. 
191. Osmunda regalis Linn. 
Plate 170. Small frond, nat. size, b Occasional fertile condition. 
Crown tufted, sub-erect, often large, the young fronds 
clothed with yellowish woolly tomentum. Fronds two to 
four feet long, one to one and a half feet broad, two-pinnate, 
and barren for the most part, but with a changed, two to 
three-pinnate, fertile apex. Barren pinnae three to six pairs, 
ovate-lanceolate, obtuse, glabrous, light green, herbaceous, or 
sub-coriaceous, eight to twelve inches long, three to four 
inches broad, and having six to ten pairs of rather irregular. 
