25 
Var. robusta Doidge. 
On Ficus sp., Port Elizabeth, 20.6.19, Gunn [12248]. 
Differs from the type in the thickness of the stroma and in the form and size of the 
loculi. Stroma 400-450 u high, loculi sub-spherical, 330-370 u diam., 300-400 v. high. 
31. Catacauma dalbergiicola (P. Henn.) Th. et Syd. 
Ann. Myc., XIII (1915), p. 388. 
Syn. Phyllachora dalbergucola P. Henn., Hedwigia XXXVI, 1897, p. 224; Syl. 
Fung. XIV, p. 664. . 
On leaves of Dalbergia armata, Barberton Dist., August, 1906, Pole Evans [588]; 
Stella Bush, Durban, 11.7.11, Doidge [1662]; Verulam, Natal, 3.7.13, Pole Evans 
[6808]. 
The type specimen is on leaves of Dalbergia varvabilis and was collected in Brazil. 
The South African specimens agree exactly with the description of the original, except 
in the size of the loculi, which are somewhat smaller. 
Epiphyllous, taking different forms on different leaves, sometimes very minute, some- 
times producing round-angular stromata up to 13-2 mm. diam., convex, somewhat shiny, 
between the epidermis and the palisade cells. Clypeus epidermal, opaque, about 35 u 
thick, the inner part of the stroma being formed of vertical, parallel, light rusty-brown 
prosenchyma. Loculi sunken in the stroma, one or more according to the size of the 
stroma, 240-300 u diam. and 180-200 u high (in the original description 360-440 u. diam.), 
with a thin wall. Asci clavate, paraphysate, 60-70 u x 16-20 u. Spores distichous, 
oblong-ellipsoid, hyaline, continuous, 12-14 u x 6-7 u. 
32. Catacauma Pterocarpi Syd. 
Ann. Myc. XIII (1915), p. 387. 
Syn. Phyllachora Pterocarpi Syd., Ann. Myc., 1912, p. 40. 
On Pterocarpus angolensis, Letaba Drift, Zoutpansberg Dist., 6.8.11, Doidge [1807] ; 
Barberton, 22.8.12, V. d. Byl [5132]. 
Stromata epiphyllous, scattered, small, irregularly circular, 1-2 mm. diam., shiny 
black, on pale leaf spots, slightly convex, with somewhat undulating surface. Clypeus 
epidermal, opaque; loculi with their bases on the palisade tissue, 1-6 in each stroma, 
flattened-spherical, closely appressed to the leaf tissue at the base, with thin brown walls, 
350-450 vu. diam., 240-300 » high. ‘The upper parts of the loculi are connected by thick 
stromatic tissue. Asci paraphysate, clavate-cylindrical, 60-80u x 16-24». Spores 
monostichous or distichous, hyaline, one-celled, elliptic, rounded at both ends, 14-18 uw x 
8-9 u. 
The spores of both specimens appear to be somewhat immature. Theissen and Sydow 
(loc. cit.) state that it is doubtful whether there is a working difference between this fungus 
and Phaeostroma plerocarpt Syd. with two-celled spores. 
33. Catacauma Peglerae n. sp. 
On leaves of Eugenia capensis, Kentani, 6.7.15, Pegler (Pegler No. 2340) [9099] ; 
Umbogintwini, Natal, 9.5.13, Doidge [6636]; Scottsburgh, Natal, 5.7.13, Pole Evans 
[6841]; Warner Beach, Natal, 1.4.18, Bottomley [11667]. 
Stromata epiphyllous, 1-2 mm. diam., circular, often forming larger, irregular 
stromata by confluence. Central stroma often surrounded by a ring of secondary stromata 
at a distance of 2-5 mm. (radius), which may be small and discrete, or fuse to form a con- 
tinuous ring. Stromata black, shining, somewhat conical or mammillate in section. 
Epidermal clypeus about 40 u thick, black, opaque, the stroma lying in the cavity between 
the arched epidermal clypeus and the depressed and hollowed palisade tissue. Locular 
wall thin and very closely appressed to the palisade cells. Loculi flattened-hemispherical 
