South African Microthyriaceae. 
269 
17/11/17, Doidge, 10960 ; Lovedale, Alice, 18/11/17, Doidge, 10979 ; Hogg's 
Back, 15/1/18, J. & M. Henderson, 11345. 
On Carissa acuminata, Stella Bush, Durban, 7/4/18, Bottomley, 11381. 
On Carissa grandiflora, Krantzkloof, Natal, 26/5/15, Doidge, 8983 ; 
Isipingo, Natal, 27/3/18, Bottomley, 11380. 
3. Lembosia radiata Doidge, sp. nov. 
Plate XIX, fig. 46. Slide XLVI, 8. 
Epiphyllous, rarely hypopliyllous, forming dense, opaque, black spots 
l'5-2"5 mm. diam. Mycelium delicate, radiating; byphae slender, fuscous, 
3-4 fx thick ; branches irregular, interwoven and anastomosing ; hyphopodia 
sub-globose, 6-7 fji diam. Primary thyriothecia densely crowded and con- 
fluent in the centre of the spot, so that the boundaries of the individual 
thyriothecia are often indistinguishable ; confluent in a stellate manner ; 
secondary thyriothecia often forming a concentric ring, oriented with the 
long axis on a radius from the centre ; 240-300 x 60-160 fi, formed of 
radiating hyphae about 3 [m thick ; dehiscing by a longitudinal slit almost 
the length of the thyriothecium. Asci ellipsoid-clavate, 42-45 x 18-23 jx, 
8-spored, somewhat thickened round the apex ; paraphyses numerous, 
hyaline, slender, filiform, slightly exceeding the asci, simple or branched, 
not swollen at the tips ; asci do not stain blue with iodine. Spores sub- 
distichous, 1-septate, scarcely constricted, fuscous, smooth, 17-20 x 8-10 /x ; 
■cells sub-equal, but upper loculus very slightly broader and rather more 
broadly rounded. 
On leaves of an undetermined shrub (Leguminosae) , Kikatli, Portuguese 
East Africa, 15/9/18, Junod, 11729. 
EcHiDNODES Theiss. et Syd. 
Ann. Myc. xvii (1915), p. 422. 
Like Lembosia, but mycelium non-hyphopodiate. 
Echidnodes rhoina Doidge, sp. nov. 
Plate XYIII, fig. 43. Slides XXVIII, 7-10. 
Amphigenous, mostly epiphyllous, forming minute black spots 
1-1-5 mm. diam., often very numerous and confluent. Hyphae septate, 
brown, 2*5-3*5 /x thick, alternately branched, anastomosing; no hypho- 
podia. Thyriothecia irregularly scattered, occcasionally confluent, not very 
numerous, black, oblong-ellipsoid, straight or curved, or occasionally 
forked, 300-500 x 90-1 50 /x, dehiscing by a longitudinal slit almost the 
length of the thyriothecium. Asci 8-spored, paraphysate, broadly elliptic- 
ovate, somewhat thickened at the apex, 35-40 x 20-24 /x ; paraphyses 
fairly numerous, filiform, exceeding the asci. Spores distichous or con- 
