58 Transactions British Mycological Society. 
angular, sub-globose, aculeate, the body about 6 diam. Burt 
gives the habitat as rotten bark, and wood of frondose species. 
In France it is found on sandstone and chalk. The present 
specimens (Somerset, Sept. 1920 during Minehead foray) were 
on a pine stick and were rust coloured. 
The specific name ¢abacina of Cooke and Ellis, though having 
priority is not now available as it is already used for Bresadola’s 
species. 
MUCRONELLA AGGREGATA Fr. Hym. Eur. p. 629. 
Subiculum absent or occasional, teeth subulate, short, free, 
but arranged in groups, white then pale. Hyphae 2-4 with 
thin walls, clamp connections sparse, basidia cylindrical or 
clavate 10-20 x 34-5; spores hyaline elliptical 4-6 x 24-4. 
Under old log in last stage of decay. Horsley, Oct. 1920, 
A. A. P..and Rev. J. P. Alexander, C.J. 
NEW OR RARE BRITISH DISCOMYCETAE. 
By Carleton Rea, B.C.L., M.A. etc. 
Pustularia lecithina (Cke.) Rea. Peziza (Humaria) lechithina 
Cke. in Grev. Iv, 110. Helotium lechithinum Massee, 
Brit. Fung. Fl. Iv, 233. 
In September 1920 Mr James Menzies sent me a fine gathering 
of this species from the neighbourhood of Perth. The hymenium 
varied in colour from egg-yellow to a deep red orange due to 
the position of the receptacles, growing either in water on the 
underside of a stick, or out of the water and exposed to the 
light. The asci are cylindrical, 250-290 x 15-18 p, operculate, 
and do not turn blue with iodine. The spores are hyaline, 
elliptical, obtuse at both ends, 18-22 x 10-13 p, 2-guttulate at 
maturity and accompanied by granulations. The paraphyses 
are hyaline, filled with large yellow oil drops in the upper 
portion, gradually enlarged upwards into the clavate apex, 
2605-300 x 4-8, simple, or branched, septate, contents not 
turning green with iodine. The hypothecium is pseudoparen- 
chymatous, averaging 50-60 » in diam. Boudier in his Histoire 
et Classification des Discomycétes D’Europe, p. 70, doubtfully 
assigned this species to the Humariaceae, but it is clear from 
the extended diagnosis set out above that it must be referred 
to the Pezizaceae and placed in the genus Pustularia. 
