The South African Rust Fungi. 
645 
Teleutospores. — Sori liypopliyllous or caulicolous, scattered or gregarious, 
on orbicular yellow spots, of medium size, often confluent on the stem, 
ocliraceous, compact ; spores oblong, rounded at the apex or attenuated, 
thickened above (up to 8 /x), slightly constricted at the middle, attenuated 
below, smooth, pale yellow or subhyaline, 52-75 x 20-28 /x; pedicel hyaline, 
deciduous, up to 38 /x long. 
On leaves and stem of {Nidorella mespili folia) Seneci o deltoidis D.C., in 
Boschberg Mountains, autumn 1875. (MacOwan, 1105 ; Pole Evans, 8845.) 
Plate XLYIII, fig. 12. 
I am indebted to the Director of the South African Museum, Cape Town, 
for material of this species, and also for allowing me to examine the 
Museum sheets of this fungus. 
The host was originally regarded as Nidorella mespilifolia , but it has 
since been determined as Senecio deltoidis D.C. 
11. Puccinia oedipus Cke. 
Puccinia oedipus Cke. in G-revillea x, p. 126 ; Sacc. Syll. vii, p. 608 ; 
Sydow, Monogr. i, p. 143, f. 122. 
Uredospores. — Sori hypophyllous, minute, scattered, fuscous ; spores 
globose, echinulate, yellow- brownish, 30-38 /x diam. 
Teleutospores. — Sori hypophyllous, scattered, minute, black-brownish, 
pulverulent ; spores broadly ellipsoid or oblong-ellipsoid, rounded at both 
ends, thickened at the apex (up to 11 //,), slightly constricted at the middle, 
somewhat smooth, a beautiful chestnut, 50-54 x 27-35 /x, pedicel hyaline, 
persistent, thick, sometimes twisted, up to 90 /xlong, often inserted obliquely. 
On leaves of Senecio pandurifolia, Inanda, Natal. (J. Medley Wood, 561.) 
May, 1881. (Pole Evans, 369.) Plate XLYIII, fig. 13. 
SPILANTHES L. 
12. Puccinia africana Cke. 
Puccinia africana Cke. in G-revillea viii, p. 71 (1879) ; Sacc. Syll. vii, 
p. 706 ; Sydow, Monogr. i, p. 156, f. 132. 
Teleutospores. — Sori hypophyllous, forming minute green spots, 
scattered or deposited circinately, minute, compact, black-brown ; spores 
clavate or fusiform, rounded at the apex or narrowed, thickened (up to 8 /x), 
constricted at the middle, attenuated at the base, smooth, light brown, 
43-58 X 14-19 fi, pedicel hyaline shorter than the spore. 
On leaves of Spilanthes acmella Kentani (Pegler, 1922), 19 : 11 : 1913. 
(Pole Evans, 7088.) Plate XLVIII, fig. 14. 
44 
