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Transactions of the Uoyal Society of South Africa. 
tliecia dimidiate, scutate, inverse, radiate in structure, dehiscing from the 
centre. Asci globose-ovate or elliptical-cylindrical. Spores brown, 2-celled.. 
Key to the SiJecies. 
A. Asci aparaphysate. 
a. Spores 13-17 /x long. 
i. Hyphae 3-3'5 /x diam. . . . , 1. A. Acokantherae. 
ii. Hyphae 3-5-5 fx diam., torulose . . 2. A. Burchelliae. 
h. Spores 20-23 /x long . . . . . d. A. Woodiana. 
B. Asci paraphysate . . . . . . . 4;. A. lemhosioides. 
1. Asterinella Acokantherae Doidge, sp. nov. 
Plate XYII, fig. 36. Slides XXIX, 16; XXXI, 13, 14, 17; XLYII, 
4, 5. 
Hypophyllous, forming thin, black carbonaceous spots up to 5 mm. diam. 
Mycelium rather scanty; hyphae pale, fuscous, 3-3-5 /x thick, branching 
irregularly and anastomosing. Thyriothecia very numerous, brown, gre- 
garious, frequently confluent in small groups, flattened- hemispherical 
90-115 fx diam., composed of radiating hyphae about 3 /x thick ; margin 
fimbriate. Asci elliptical-cylindi'ical, sessile, thickened round the apex,^ 
aparaphysate, 8-spored, 26-35 x 13-17 /x. Spores distichous or conglobate, 
fuscous, ellipsoid or sub-clavate, slightly constricted, 13-17 x 3-5-5 /x, 
Pycnidia similar to the thyriothecia ; conidia hyaline, fusiform, 3-septate, 
20-24 X 3-3-5 /x. 
On leaves of Acolmntliera spectahilis, Durban, Natal, 15/5/97, Wood 
(Wood, 6450 and 6451), 9510 and 9521. 
On AcoTianthera venenata, Tongaat, Natal, 12/9/13, v. d. Bijl, 6951. 
Conidial stage only : on Carissa arduina, Louis Trichardt, Zoutpansberi:',, 
8/4/19, Putterill, 11849. 
Medley Wood's specimens are labelled Dimerosporium Acokantherae,. 
but the fungus does not correspond with Henning's description (Fung. 
Africani, p. 4, Engl. Bot. Jahrb., vol. 17). 
2. Asterinella Woodiana Doidge, sp. nov. 
Plate XVII, fig. 38. Slides XXXIY, 9 ; XL, 4. 
Hypophyllous ; mycelium thin, effuse, reticulate ; hyphae slender,, 
fuscous, 2-5-3 /X thick, tortuous and interwoven, abundantly branched and 
anastomosing. Thyriothecia fairly numerous, scattered, light brown, 150- 
160 /X diam., flattened-hemispherical, formed of radiating hyphae 2-3 /x 
thick, margin crenulate, or irregularly lobed at maturity. Asci ovate to 
elliptical, 8-spored, aparaphysate, 33-37 x 27-30 /a. Spores conglobate, 
2-celled, fuscous, smooth, constricted, 20-23 x 10 /x, cells sub-equaL 
Pycnidia similar to the thyriothecia but smaller; conidia {Asterostomella) 
ellipsoid, brown, continuous, 14-16 x 8-10 /x. 
