734 
Transactions of the Boyal Society of South Africa. 
radiating, frequently septate, 7-11 /x thick, usually constricted at the septaj, 
buffy citrine (E,. XVI) ; branching alternate ; cells of the hyphae 17-27 fju 
long. Capitate hyphopodia alternate, stipitate, 18-25 /j, long, terminal 
cell varied in form, straight or bent and usually sub-lobed (or with 
rounded protrusions) 14-18 x 10-11 jx. Mucronate hyphopodia fairly 
numerous, on separate branches, opposite, ampulliform, with a thin neck, 
18-22 X 8-10 fx. Mycelial setae rather numerous, scattered, erect, rigid, 
simple, straight, opaque at the base, more pellucid near the acute apex 
280-400 X 7-9 fi. Perithecia scattered or in groups, black, globose, granular 
or slightly verrucose, 180-230 fx diam. Ascus elliptical- ovate with a very 
short foot, 2-4-spored. Spores 4-septate ; cylindrical, slightly constricted 
at the septae, rounded at both ends, laterally compressed 35-47 x 15-20 
X 14 /X. 
On leaves of Rhus loyigispina, Despatch, near Uitenhage, 24/3/11, E. M. 
Doidge (1239). 
On leaves of Uhus crenata, Yerulam, 3/7/13, I. B. Pole Evans (6804). 
On leaves of Rhus sp., Mayville, near Durban, Natal, 22/7/15, J. Medley 
Wood (9032). 
On leaves of HarpophyTlum caffrum, Kentani, 17/2/15, A. Pegler (8851), 
(Pegler No. 1986). 
Var. tenuis. — Hyphae more slender with distant articulations, capitate 
hyphopodia more frequently smooth. 
On leaves of Rhus sp., Stella Bush, Durban, 2/7/12, E. M. Doidge (2519). 
In his description Hennings does not mention the presence of mycelial 
setae ; but as the remainder of the description agrees exactly with the 
South African specimens I have assigned them to this species. 
Meliola microthecia Thum. 
Flora, 1876, p. 569. 
Sacc. Syll. Fung, i, p. 68. 
G-aillard, Le Genre Meliola, p. 73. 
Amphigenous, forming very small, thin, black colonies ^-1^ mm. diam., 
these frequently becoming confluent and forming larger spots. Hyphae 
radiating, sinuous 7-8 /x thick, branching freely, frequently constricted at the 
septa, snuff-brown (E. XXIX) formed of cells 18-25 /x long ; branches 
usually alternate, frequently anastomosing. Capitate hyphopodia numerous, 
alternate, stipitate, 21-32 jx long ; terminal cell 14-21 x 10-18 /x, at first 
ovoid then lobed, frequently becoming triangular with truncated angles. 
Mucronate hyphopodia opposite or unilateral, on separate branches, inflated 
in the middle and drawn out into a short neck 12-18 x 10/x. Mycelial setae 
very few in number (4-6 to each colony), in the neighbourhood of the peri- 
thecia, straight, cylindrical, 200-350 x 8-10 /x, translucent throughout and 
frequently septate, Vandyke brown (E. XXVIII) at the base, paler towards 
