252 Transactions British Mycological Society. 
evidently closely allied to it, but is white in colour. The column 
of conidia surmounting the disc, as in the above species, is 
mucilaginous and white. The excipulum having a saucer-shaped 
form is composed of very narrow parallel hyphae. The interior 
is lined with branched conidiophores, the branches arising in 
whorls, near the base. The conidia arise laterally on the conidio- 
phores and do not cling together in chains. 
The conidia measuring 5—6:5  I-I'5 p are cylindrical in shape 
and truncate at both ends. This fungus differs from P. caesia 
in the absence of hairs on the excipulum; in the size and method 
of growth of the conidia and conidiophores, the conidia being 
Fig. 3. Patellina diaphana. (a) Pycnidia. x 20. 
(b) Conidiophores. x 1500. (c) Spores. x 2250. 
smaller and the conidiophores much longer; also in colour. It 
is highly probable that this also is the conidial stage of some 
Discomycete. ; 
Lemalis aurea (Lév.) Sacc. Syll. Fung. 111, p. 672 (1884). 
Excipulum lemon yellow, cup shaped with a spreading rim, 
exterior shining, very fragile, I x Imm. The rim of the cup 
is marked by hairs which cling together in groups giving it a 
coarsely dentate appearance. A hymenium of conidiophores 
lines the pycnidium which is composed of very slender non- 
septate hyphae -75 wide, each conidiophore consisting of an 
aseptate hypha with a whorl of four branches at the apex. 
The pycnospores are globose, hyaline, 1-5-2 diam. and are 
produced basipetally in chains in enormous quantities. The 
spores cling together by means of mucus and are exuded from 
the cup in the form of a straight or tortuous column; a column 
may be three or four times the volume of the cavity of the 
