22 
at first united. It then surrounds the free erumpent fruiting bodies, being torn into 
broad black flaps. The inner part of the stroma is comparatively light coloured, but 
consists of thick-walled hyphae, 6-10 u broad. Loculi crowded, spherical or spherical- 
ovate, 120-160 » diam., not reaching the base of the stroma, without a true wall. Para- 
physes filiform. Asci cylindrical, rounded above, narrower at the base, 100-1354 x 
14-16 v. Spores obliquely monostichous or almost distichous up to eight in an ascus, 
elliptic, one-celled, olive brown, 17-19 u x 8-9 u. 
24. Parastigmatea Doidge, nov. gen. Stigmateacearum. 
Omnia ut in Stigmatea, sed sporae hyalinae, continuae. 
Parastigmatea nervisita n. sp. 
On leaves of Stephania hernandifolia, Maritzburg, Natal, 26.6.11, Doidge [1656] ; 
6.4.14, Doidge [8352]. 
Ascomata epiphyllous, minute, dull black, punctiform, circular, 240-300 u diam., 
discrete, but in small groups on main and lateral veins, 80-90 u high, smooth, remaining 
covered by the cuticle. Basal membrane brown, about 10 thick, composed of con- 
centric layers of compressed hyphae. Covermg membrane radial in structure, composed 
of sinuous hyphae, 3-3-5 u thick, arched in centre, flat at edges, 6-7 u thick, dehiscing 
by a circular central pore; central cavity containing asci about 150 u diam. Asci para- 
physate, ovate or broadly ellipsoid, thick walled, eight-spored, 50-53 x 26-5-30 u. 
Spores distichous or conglobate, hyaline, sub-clavate or somewhat piriform, rounded at 
both ends, continuous, 20-24 y « 8-10 u. 
Parastigmatea mervisita Doidge, nov. sp. 
Ascomata epiphylla, minuta, atra, rotundata, in nervibus insidentia, 240-300 u diam., 
80-90 u alta, laeves, cuticulare tecta, radiatim e hyphis undulatis 3-3-5 u crassis, con- 
texta. Asci paraphysati, ovati vel late ellipsoidei, 8-spori, 50-53 » x 26-5-30 u. Sporae 
distichae v. conglobatae, hyalinae, continuae, subclavatae v. sub-piriformae, utrinque 
rotundatae, 20-24 ` 8-10u. 
Hab. in foliis Stephamae hernandifoliae, Maritzburg, 26.6.11, et 6.4.14, leg. Doidge 
[1656] et [8352]. 
25. Perischizon oleifolium (Kalch and Cke.) Syd. 
Ann. Myc. XII (1914), p. 265, XII (1915), p. 269. 
Syn. Dothidea oleifolia Kalch et Cke., Grevillea IX (1880), p. 31. 
On Olea capensis, 9.1.14, Kirstenbosch, C.P., Pearson [7374]. 
On Olea laurifolia, 21.6.16, Malalane, Eastern Transvaal, Hall [9749]. 
Stromata amphigenous, scattered or crowded, circular, raised, }-? mm. diam., with 
a central foot 100-200 ». diam. penetrating into leaf tissues. Surface rough, lumpy, with 
a single (occasionally double) peripheral wall, beset laterally as well as at the base with 
bristly, brown, truncate septate hyphae, 100 u long, 5-8 » thick, which later disappear. 
Stroma hard in texture, dark, prosenchymatous, composed of parallel hyphae. The loculi 
are sunken in the periphery and coalesce to form a circular hymenium, the stromatal 
cover becoming mucilaginous at maturity and disappearing. Asci clavate, thick-walled 
round the apex, 90-1154 x 28-38 u, eight-spored, embedded in mucilage. Paraphyses 
simple, thick, clavate at the apex, and 3-4 broad, light brown. Spores distichous, 
ellipsoid-oblong, brown, 26-34 u x 11-14 u, two-celled, constricted, abruptly rounded at 
both ends; upper cell somewhat broader than the lower. : 
26. Phragmodothella nervisequens n. sp. 
On leaves of Burchellia capensis, Van Stadens Pass, 7.7.18, Pole Evans [11446]. 
Stromata amphigenous, but mostly hypophyllous, forming elongated, raised, rusty- 
brown streaks, up to 1 cm. long and 1 mm. broad, on mid-rib and main lateral veins ; 
smaller, punctiform, elongated, or branched on smaller veins. Stromata developed under 
