7 
coherent. 'The central portion of the stroma is sterile, the loculi being arranged in a 
circle round the centre; loculi linear, about 270 u wide and 100-115 u high, dehiscing by 
a longitudinal fissure. Hypothecium pseudo-cellular, rather pale. 
Asci paraphysate ; ovate when immature, thick walled above, 60 u x 30-33 u, and 
with irregularly tristichous or conglobate spores. Mature asci clavate or ellipsoid, 
75-90 u X 98-26 u with distichous spores. Asci stain brick red with iodine; there is 
no blue reaction. 
Paraphyses numerous, hyaline, linear, about 2:5 u thick. Spores brown, opaque at 
maturity, two-celled, slightly constricted, ellipsoid, cells equal or sub-egual, 28-30 x 
12-13°5 u. 
Cycloschizon fimbriatum Doidge, n. sp. 
Stromata amphigena, sparsa, 1-5-2 mm. diam., superficialia, centro affixa; centro 
sterili magno 400-500 u diam.; irregulariter radiatim ex hyphis septatis 3 -5—4 u. crassis 
brunneis composita, ambitu hyphis longiusculis radiantibus, 3-5 u crassis, flexuosis, ramosis 
cincta ; loculo annulari integro v. interrupto, 270 u lato, 100-115 u alto, rima longitudinale 
aperto. Asci paraphysati, clavati v. ellipsoidei, 75-90u x 23-26 u, octospori, para- 
physibus numerosis, hyalinis, linearibus, 2-5 w crassis. Sporae brunneae, oblongae, medio 
vel paullo supra medium septatae, leniter constrictae, ad apicem rotundatae, 28-30 u. x 
12-13 -5 u. 
Hab. in foliis Cathae edulis, Zoutpansberg Dist., Transvaal, 6.8.11, leg. Doidge 
[1797]. 
4. Cocconia porrigo (Cke.) Sace. 
Syll. Fung. VIII, p. 738. 
Syn. Rhytisma porrigo Cke., Grevillea X, p. 129 (1882). 
On leaves of Olea capensis, Inanda, August, 1881, Wood No. 660 [10702]; Van Stadens 
Pass, C.P., 13.11.17, Doidge [10888]. 
Stromata amphigenous, but mostly epiphyllous, not crowded, round, flat, dull black, 
up to 5 mm. diameter; central portion raised and rugose, 120-140 u thick. In the 
smaller stromata there is a regular circular loculus forming a ring round the centre, and 
within it a second smaller loculus which may be circular, S-shaped, or irregular. In the 
larger stromata there are several concentric, circular loculi. At the periphery the covering 
membrane is thin and membranaceous with lobed margins, and consists of radiating, 
brown, septate hyphae which are 4-4-5 thick. Hypostroma extensive, in and under 
the epidermis, dark, breaking out at many points and spreading horizontally on the cuticle ; 
thus it forms a layer of short, septate hyphae about 26-30 u thick, which becomes gradually 
thinner towards the periphery. Covering membrane radial in structure, carbonaceous, 
30-40 » thick. Height of stroma 140-160 u. Asci broadly ellipsoid, 80-85 u x 27-30 u 
with distichous or tristichous spores. Paraphyses filiform. Spores dark brown, 30-33 u x 
11-13 u, two-celled, constricted ; loculi unequal, upper cell about 14-16 u x 13 u, broader 
and shorter than the lower cell, which is 16-18 u x 11 u. 
5. Cocconia concentrica Syd. 
Ann. Myc. XIII (1915), p. 215. 
Syn. Hysterostomella concentrica Syd. Ann. Myc. VII (1909), p. 544; Syll. Fung. 
XXII, p. 556. 
Hysterostomella circularis, Har. et Pat. Bull. Mus. Hist. Nat., 1911, p. 368. 
On Trichila emetica, Lourenco Marques, 24.9.08, T. R. Sim [508]; Umbelusi R. 
Portuguese Hast Africa, 9.11.10, Howard [1019]; Rikath, P.E.A., September, 1918 
Junod [11728]. 
This fungus has only been recorded from East Africa on Trichilia emetica. 
It has been described by Sydow (loc. cit.) as follows :—On the upper side of the leaf 
there appear numerous concentric rings of small, black, punctiform bodies, which gradually 
