The Ferns of South Africa. 
214 
sessile, ovate-oblong, pinnatifid pinnules. Pinnae above the 
middle of the frond, cut to the mid-rib only at the base into 
ovate obtuse, toothed or nearly entire pinnules. The pinnae are 
less deeply cut upward, ending in a simply toothed blunt apex. 
Sori diverging obliquely from near the mid-rib into the teeth or 
lobes in the upper part of the pinnae, ultimately sub-confluent, 
parallel with the mid-rib. 
Gymnogramme tartarea, Desv., var. /3 ochracea. Hk. and Bkr. Syn. Fil. 
384. 
A tropical American species, not included as African by Kuhn, 
though he includes the closely connected G. calomelanos, Klf., 
from Fernando Po. 
Natal. — (Gerrard ,fide Hk. and Bkr. Syn. Fil.). 
Transvaal. — (Herb. Bolus). 
135. Gymnogramme argentea. Mett. 
Plate CXXVII. Natural size. b. Fertile pinnule, enlarged. 
Crown erect, slender, tufted, somewhat coated with white 
powder. Fronds herbaceous, fragile, deltoid, four-pinnatifid, 
green and glabrous on the upper surface, and on the under surface 
coated with white or pinkish powder, which is generally very 
abundant, but sometimes nearly awanting. Fronds one half to 
two feet long, four to eighteen inches broad, with a slender naked 
brown stipe six to twelve inches long. Pinnae distant, ovate 
pointed or deltoid, the lower ones largest, four to nine inches long, 
two to four inches broad, the lower pinnules on the lower side 
much larger than the others. Pinnules numerous, separate, shortly 
stalked, bluntly ovate-deltoid, decreasing in size regularly up the 
pinnae, and divided to the mid-rib into separate, flabellate, bifid, 
trifid, or pinnatifid segments, the ultimate lobes a half-line broad, 
rounded at the apex, and having one veinlet each. Sori brown, 
linear, following the veins and meeting below. 
G. argentea. Mett. MS.; Kuhn, Fil. Afr. 59; Hk. and Bkr. Ed. II. 
385 ; Buchanan’s List, No. 114. 
