14 
C. Hen nii B. & Br. Outl. Fung. P- ey Cooke, Handb: 
p. 462. Sacc. Syll. iii..252. Allesch. vi 
Pustules small, scattere1; pesca it thin, some- 
times lobed at the margin; contents whitish. Spores oblong, 
gently curved, hyaline, 7-8 x 2-5-3 p, issuing in a formless 
mass. 
On twigs of Rosa arvensis. Milton, Norths. (Berk.). The 
dimensions of the spores are taken from the original specimens. 
A doubtful species. 
_ “ Pyenidium nearly regular, but sometimes lobed. at the edge, 
and raised in the centre from the elevation of the subjacent 
bark. Spores larger than in most Cytosporae, oblong, but short, 
very slightly curved, oozing forth in the form of a dirty-white 
shapeless jelly.” (B. & Br.) 
C. Hi ppophaes Thiim. Fung. seat no. 282. Sacc. syil iii. 
274. Allesch. vi. 583. Died. p. 
Stromata small, 250-300 p a es ae sania: 
covered by the darkened epidermis, at length erumpent, pallid, 
then black. Spores 4-6 x 1-1-25 4; sporophores fasciculate on 
a basal cell, 12-20 x 1 p. 
On dead twigs of H BRORNGE rhamnoides. Ayrshire (Boyd). 
Kew Gardens. Apr.—Nov 
In an Austrian specimen, issued by Thiimen, the loculi are 
circinating and immersed in the bark; the pallid disc is at length 
pierced by a circle of several ostioles. In the Ayrshire specimens, 
the loculi may be as many as twelve, all circinating round a 
central grey or blackish disc, and each piercing it, at least in some 
cases, by a separate ostiole ; the wall of each loculus is distinct 
and of a pale greenish colour. It is said to be the spermogone 
of Massaria Hippophaes Jacz. (Sphaeria Hippophaes Sollm.) 
Distrib. Germany, Austria, Denmark. 
C. hyalosperma Fr. Syst. Myc. ii. 545. Sace. Syll. iii. 258. 
“ Stromata immersed, indistinctly cellular, black, as well as 
the conico-convex erumpent neck. Spores issuing in a colourless 
tendril.” 
On bark of Acer Pseudoplatanus. Kew Gardens. A .very 
doubtful species, probably merely a form of one or more which 
have colourless spore-masses. 
In the Kew specimens the spores are slightly curved, about 
6 x 1 yp, but the stromata are larger than usual in Cytospora. 
J. B. Ellis’s American specimens, named hyalosperma, on Acer 
rubrum, are quite different in appearance; the spores are smaller, 
4-5 X 1 p, and they are certainly not the same species. Fries 
says :—‘‘ small, without a depressed disc.” Cf. C. ledicosperma. 
Distrib. Sweden, United States of America. 
C. Hyperici Grove, in Journ. Bot. 1922, p. 45. 
Stromata densely scattered, pulvinate, oval, up to 2 mm. 
long, convex, opening by a central pore surrounded by a minute 
