716 
Transactions of the Royal Society of South Africa. 
Ballaclyna velutina (B. & C.) v. Hohn. 
Annales Mycologici, vol. x (1912), p. 16. 
(Asterina phaeostrorna (Cke.), Grevillea, vol. x (1882), p. 130.) 
(Asterella j^haeostroma (Cke.), Sacc. Syll. Fung, ix, p. 396.) 
Amphigenous, forming thin, effuse black colonies, frequently confluent. 
Hyphae radiating, branched, light-brown, 6-7 />t thick, frequently septate, 
bearing numerous hyphopodia. Hyphopodia unilateral or alternate, 
unicellular, sub- globose with truncated angles, or narrow ovate. Mycelial 
setae numerous around the perithecia, simple, more or less fiexuous or 
curved, black, opaque, about 100 x 5-6 fx. Perithecia numerous, small, 
membranaceous, sub-pellucid when immature, smooth, 65-70 /x diam. Asci 
one in each perithecium, aparaphysate, globose, 35-40 x 25-30 /x, 8-spored. 
Spores conglobate, fuscous, 2-celled, cells subequal, slightly constricted at 
the septum, 21-22 x 9-11 /i. 
On leaves of Pavetta natalensis, Inanda, Natal, September, 1881, J. Medley 
Wood (Wood No. 656). 
On leaves of Pavetta ohovata and P. Boivkeri, Isipingo, Natal, 13/5/13, 
E. M. Doidge (6627 and 6634). 
On leaves of Pavetta sp., Kentani, 15/3/15, A. Pegler (8895), (Pegler 
No. 2305) ; Woodbush, Zoutpansberg Dist., 4/8/11, E. M. Doidge (1768). 
On leaves of Tricalysia lanceolata, Stella Bush, near Durban, 2/7/12, 
E. M. Doidge (2523). 
On leaves of Tricalysia florihunda, Umgeni, near Durban, 27/5/15, 
E. M. Doidge (8981). 
DiMEROSPORIUM 
Mvcelium well developed, black, usually sub-crustaceous. Perithecia 
superficial, depressed- globose, sub-membranaceous, carbonaceous. Asci 
clavate to ovate, 8-spored. Spores 2-celled, hyaline. 
Dimerosporium Osyridis Wint. 
Sacc. Syll. Fung, ix, p. 401. 
Winter, Flora, 1884, p. 7. 
Mycelial hyphae fuscous, branched, radiating, forming black, round, 
irregular spots up to 2 mm. diam. Perithecia in groups, depressed-globose, 
ruo-ulose, glabrous, black ; under the microscope almost pellucid, fuscous, 
150-210 fji diam. Asci cylindrical-clavate, very briefly stipitate, 8-spored, 
42-52 x 10-12 [X. Spores obliquely distichous, oblong, 2-celled, hyaline, 
9-12 x 4-5 /X, constricted at the septum. Paraphyses filiform, equalling 
the asci. 
On living leaves of Osyris compressa, Cape of G-ood Hope, MacOwan. 
I have not seen this specimen. The above, therefore, is simply a 
translation of the original description. 
