28 
near the lower epidermis, a short clypeus is formed. The leaf, which is normally 200-220 u 
thick, becomes arched over the loculus to a thickness of 360 u. Asci cylindrical, para- 
physate, 75-90. « 9-12 u. Spores monostichous, ellipsoid, hyaline, broadly rounded, 
one-celled, 11-13 u. x 6-8 u. 
39. Phyllachora dombeyae Syd. 
Ann. Myc. XV (1917), p. 532. 
Syn. Physalospora dembeyae Syd., Ann. Myc. X (1912), p. 441. 
On Dombeya rotundifolia, Equeefa, Natal, 24.4.11, Fuller [1539]. 
On Dombeya schimperiana, Woodbush, Zoutpansberg Dist., 4.8.11, Doidge [1762]. 
Stromata epiphyllous, gregarious on yellow leaf spots, }-+ mm. diam., convex, some- 
what shiny, not visible on the lower leaf surface, or only visible as minute dull black spots ; 
with one or few loculi. Loculi spherical, 160-190 u. diam., covered at the apex with a dark 
epidermal clypeus, almost without lateral walls, not touching the lower epidermis, or 
forming a very short clypeus in the lower epidermal cells. Asci clavate, paraphysate 
60-75 p 15-20 vu. Spores distichous or tristichous, one-celled, hyaline, rounded at both 
ends, asymmetrical, straight or slightly curved, 25-35% x 3-444. Conidia filiform, 
curved 18-26 u x 1—1% u. 
40. Phyllachora melianthi (Thuem.) Sacc. 
Syll. Fung. IX, p. 1013; Ann. Myc. XIIT (1915), p. 528. 
Syn. Rhytisma melianthi Thuem., Flora, 1876, p. 569. 
Cryplomyces melianthi (Thuem.), Sace., Syll. Fung. VIII, p. 707. 
On Melianthus major, near Capetown, January, 1884, MacOwan (Rabh. Wint. Fung. 
Eur. 3557) [3897]. 
On Bersama lucens, Kentani, 3.7.15, Pegler [9017]. 
Stromata on both sides of the leaves, numerous, scattered, small, unilocular, hemi- 
spherically or conically convex, flat at the periphery, } mm. diam., black ; on the opposite 
side of the leaf the grey epidermis bulges out, and later becomes filled with stroma and 
becomes black. Between the two leaf surfaces lies a single large stroma (1-14 mm. diam.), 
which either remains unilocular, surrounded only by a broad, flat, stromatic border, or 
contains several loculi, and is then not surrounded by sterile stroma. Clypeus epidermal 
opaque, 15-25» thick, inner part of stroma and locular wall consisting of light brown 
prosenchyma. Locular wall thin, delicate. Loculi flattened spherical, 240-280» diam. 
(in stromata on Bersama, 320-450 u. diam.), 240-300 u high, occupy from three-quarters to 
the whole of the thickness of the leaf; occasionally irregular in shape where a vascular 
bundle impinges on locular wall, dehiscing towards the upper leaf surface by an apical 
pore. Asci paraphysate, cylindrical to clavate, 60-70% x 15-18. Spores mono- or 
distichous, ellipsoid, hyaline, one-celled, rounded at both ends, 13-14 u x 7-8 u. 
41. Phyllachora hieronymi P. Henn. 
Pilze Ostafr. apud. A. Engler, Die Pflanzenwelt-Ostafrikas, p. 34; Syll. Fung. 
XIV, p. 673. 
On Cyathea dregei, Winters Kloof, Natal, 27.6.11, Doidge [1666]. 
Stromata epiphyllous, shiny black, often on the veins, slightly convex, 0-4-0-5 mm. 
diam., usually unilocular, penetrating right through the leaf. Clypeus epidermal, well ee 
developed, opaque, 30-33 u thick. Locular wall brown, thin, 12-14 u thick, often thinner n 
at the sides. Loculus flat ellipsoid, 300-320 diam., 170 u high. Asci paraphysate, di 
clavate-cylindrical, briefly pedicellate, 65-70 u x 16-20 u. Spores distichous, hyaline, 
oblong, 20-24 x 7-8 u. 
