South African Microthyriaceae. 
251 
8-20 X 7-10 fJL, distinctly 3-6-lobed, some almost palmate, others somewhat 
uncinate. Thyriothecia gregarious, often becoming angular through 
contact, otherwise flattened-hemispherical, fuscous, 85-130 /x diam., com- 
posed of radiating hyphae 2-3 /x thick, cells about 4/x long; margin 
fimbriate, dehiscence stellate. Asci almost globose, sessile, 8-spored, 
30-35 X 26-32 fi. Spores oblong, 1 -septate, constricted, rounded at both 
ends, not infrequently asymmetrical, fuscous, 15-18 x 7-9 /x, lower loculus 
slightly narrower. Pycnidia similar to the thyriothecia but slightly smaller; 
conidia (Asterostomella), oval to pyriform, fuscous with a hyaline medial 
band, 13-18 x 6-10 /x. 
On leaves of Claoxylon sp., Natal, Wood (Wood, 6458 h), 1534 h. 
On Dalechampia cai)ensis, Amanzimtoti, Natal, 10/7/11, Doidge, 1638 ; 
Winkle Spruit, Natal, 25/5/15, Doidge, 9003. 
On Acalypha decimibens, Yan Stadens Pass, 13/11/17, Doidge, 10862. 
The type specimen (Wood 6458), consists of two different sets of leaves. 
The fungus on the leaves of Claoxylon sp. corresponds with Winter's 
description of A. tenuis ; the other leaves are apparently those of a Ga/pimris 
sp., and the fungus, which is in very poor condition, resembles A. celtidicola 
var. microspora. 
Evidently two sets of specimens have been confused, and this accounts 
for the fact that Theisseii (Die Grattung Asterina), failed to find a species 
corresponding to A. teyiuis on Wood's no. 6458. 
6. Asterina fimbriata Kalch. & Cke. 
Orevillea, ix, p. 33 c. tab. 138, f. 46 ; Syll. Fung, i, p. 41. 
Asterina imnctiformis Lev. var. fimhriatOj, Die Grattung Asterina, p. 67,. 
T.Y., fig. 19. 
Plate XIV, fig. 11. Slides V, 6 ; XXIY, 20 ; XXV, 4. 
Epiphyllous, mycelium radiating, irregularly branched, but branches 
frequently opposite and anastomosing very irregularly ; hyphae light brown, 
undulating, 4-6 /x thick ; hyphopodia alternate, stipitate, 8-12 x 6-8 1', 
stipe cell short, terminal cell capitate or club-shaped, and usually slightly 
indented or 2-3-lobed. Thyriothecia gregarious, round, 130-170 /x diam., or 
oval, 170 X 140 /X ; composed of radiating hyphae 3-5-4-5 /x thick, cells 
7- 10 /X long ; margin fimbriate, dehiscence stellate. Asci aparapliysate, 
8- spored, ovate-spherical, 28-34 /x diam., or 36-48 x 26-28 /x. Spores 
conglobate, 1-septate, rounded at both ends, brown, deeply constricted, 
18-22 X 8-10 /X, loculi sub-equal, or the upper loculus slightly broader. 
On leaves of S cler o chiton harvey anus, nr. Uitenhage, MacOwan (MacOwan, 
1290) ; East London, 24/11/17, Doidge, 10910. 
On Hypoestes sp., Wood, Natal (Wood, 608). 
On Plectronia ciliata, East London, 24/11/17, Doidge, 10900. 
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