169 
The description is as follows :— 
Pustules scattered, covered, flatly conical, 1-2 mm. across, 
then erumpent by a slit, black. Spores large, ov al, but more or 
less attenuated at the base, i.e., pyriform, ibtean tl black, 
20-25 x 10-12 gu, agglutinated in heaps which are at first convex, 
then effused; sporophores long, branched. 
On bark of Fagus, Batheaston! (Broome). This dige is 
distinguished from J/. magnum by the fact that many of t 
spores are decidedly pyritorm, although they vary a usual 
towards ovoid- -oblong; whenever MM. ovatum a been oe on 
Juglans, possibly M. juglandinum has been really prese 
There remain now for consideration two species nich have 
much smaller spores. The first of these has again been the 
subject of much confusion. 
8. Melanconium Hederae, des a Hoyersw. no. 312, in 
Linnaea, 1855, xxvi. 717; Sac c. Syll. i 751. 
Coniothyrium Hederae, Sacc. Mich i- we Syll. ii. 307. 
Phoma Hederae, Desm. Pl. Crypt. no. 350. 
Melanconium microspermum, Nees, Syst. Pilz. p. 32, 1817 
(quoad in Hederae). ¥ckl. Fung. Rhen. no. 2106! 
Stilbospora microsperma, ‘‘ Pers.’ Auct. p.p. 
The matter has here been much boriplissiod by the fact that 
the issuers of exsiccata have, without knowing it, included two 
perfectly distinct fungi on Small branches of Iv andes the same 
me:—one with a definite membranous pycnidium, which con- 
stitutes ee eee olivaceum, Bon. f. Hederae, Sacc. (Syll. 
ili. 306), and the other with a thick proliferous stratum, which 
may sometimes extend all round the spore-containing cavity (not 
below only), and which bears Melanconium, not Coniothyrium, 
Spores. The first ~ seen in Fckl. Fung. Rhen. no. 93!, the 
second zbid. no. 210 
The following exsiccata have also acy oe — 
““ Phoma Hederae,’’? Desm. Pl. Cryp 
Moug.. et Nestl. ssi, Crypt no. 979! 
ss a Berk. Brit. Fun o. 90 
Herb. Berk. “‘ ‘Ring’ s Clite 24 
Herb. Berk. “‘ North 
Herb. — “Shere”? (Dr. Capron), on 
p diam.; spores x 2-3 py 
Coniothyrium Hederae, Sace. 
