256 
Transactio7is of the Royal Society of South Africa. 
sliort, but very mucli branched and anastomosing, chestnut brown, h-7 fj, 
thick, very closely interwoven ; hjphopodia small, sessile, 1-celled, rounded 
at the apex or rarely slightly attenuated, alternate or opposite, 9-1] /x long, 
5- 6 /X broad. Tliyriothecia often 1 or 2 in each spot, in the larger spots as 
many as 10, hemispherical, 150-250 /x diam., dehiscing irregularly, black, 
opaque, somewhat fimbriate. Asci ovate to globose, slightly thickened at 
the apex, aparaphysate, 50-70 x 35-46 /x, 8-spored. Spores conglobate, 
ellipsoid, broadly rounded at both ends, septate, cleepl}^ constricted, cells 
equal, smooth, 26-28 x 13-14//. 
On leaves of Chrysophj/Uum nataleyisis, Amanzimtoti, Natal, 10/7/11,. 
Doidge, 1663. 
On Chrysophyllum sp., Buccleuch, Natal, 10/7/18, Doidge, 11555. 
17. Asterina robnsta Doidge, sp. nov. 
Plate XY, fig. 22. Slides YI, 15, 19, 20. 
Epiphyllous, forming black, carbonaceous spots up to 5 mm. diam. \, 
these are often so numerous as to become confluent and form irregular 
black areas on the leaf surface. Mycelium dark browD, radiating; hyphae 
6- 7 /X thick, some of the cells swollen, 9-10 /x thick ; cells about 20 /x long;, 
branches opposite or alternate, usually somewhat narrowed at junction with 
main hypha ; hyphopodia usually unilateral, sometimes alternate, 1-celled 
sub-hemispherical, 6-6'5 x 6*5-7 /x. Tliyriothecia numerous, 300-400 /x 
diam., crowxled, flattened-hemispherical when solitary, but more frequently 
confluent in small groups and becoming angular by lateral compression,, 
opaque, almost black ; composed of radiating hyphae about 5 jx thick ; dehis- 
cence by an irregular fissure, the cells breaking away from the centre outwards. 
Asci 8-spored, obovate, 65-75 x 45-55 /x, thickened round the apex ; there 
are no true paraphyses, but the asci are surrounded by a spongy tissue of 
small greenish yellow cells, wdiich decompose into the dirty yellow muci- 
laginous mass in which the asci are embedded at maturity. Spores con- 
globate, 35-40 X 18-20 /X, very dark brown, 1-septate, constricted, smooth,, 
upper loculus slightly broader, each cell sub- spherical. 
On leaves of Pittosj)orum viridifiorum, Mossel Bay, 22/7/15, Pole Evans,. 
9066. 
18. Asterina erysiphoides Kalch. & Cke. 
G-revillea ix, p. 32, t. 137, fig. 12 ; Syll. Fung, i, p. 47 ; Ann. Myc. x, 
p. 16. 
Plate XY, fig. 23. Slides XXIII, 17-18 ; XXXII, 11. 
Epiphyllous, forming black, sooty spots up to 6 mm. diam. Mycelium 
spreading, delicate ; hyphae brown, 3*5-5 /x thick, much branched and 
anastomosing freely ; hyphopodia alternate, sessile, 1-celled, erect or hooked, 
irregularly 3-5-lobed, 7-13 p. high and 5-10 /x broad. Thyriothecia flattened- 
