226 Transactions British Mycological Society. 
The investigation recorded above was carried out in the 
Botanical Department of the University of Manitoba during 
my tenure of the Hudson’s Bay Company Research Fellowship. 
In conclusion, I desire to express my sincere thanks to Professor 
A. H. Reginald Buller for suggesting the investigation and for 
valuable advice during its progress. 
NOTES ON SOME BRITISH 
PYRENOMYCETES. 
By Sir H. C. Hawley. 
The following short notes deal with a few fungi collected in 
the last ten years or so. They do not profess to deal with them 
exhaustively. Species which are apparently new to the British 
Isles are indicated by an asterisk. It is hoped that the attention 
of other members of the British Mycological Society may be 
drawn to this interesting group. Meanwhile the writer would 
be grateful for any specimens sent to him. 
Sordania platyspora Phill. and Plowr. in Grev. vi (1877), p. 28, 
be Ot et. 2: 
This plant was described as having perithecia with short stiff 
hairs, sessile cylindrical asci, and spores nearly circular, 20 x 18 p, 
2-3. thick. It is also recorded from Scotland (Trans. Brit. 
Myc. Soc. Iv (1913), p. 68). In 1912 I found on rabbit dung in 
Sussex a fungus with similar hairy perithecia, subsessile asci 
and disciform spores, 20-21 x 16-17, 6y thick. I concluded, 
notwithstanding the thicker spores, that it was the same. On 
further consulting the literature, I found that Winter had 
described a form major of S. discospora Niessl with spores 
I7 x 14-15. The spores of typical S. discospora are given as 
I2-14 x 10p, or according to Traverso (Flor. Ital. Crypt. 1, 
Pyren. (1907), p. 920), 10-14 x 8-1Ip. Phillips and Plowright 
also described Sordaria microspora with similar but still smaller 
spores. Spore size is very variable in the. Sordariaceae, but it 
seems better for the present to maintain two distinct species, 
the one with spores 10-14 x 8-10, the other with spores 
I7-2I x 15-I18u—the thickness in both varying from 3-6y, 
rather than to follow Traverso in making S. flatyspora a 
synonym of S. discospora. At the same time there seems no 
doubt that Sphaeria scatigena B. and Br. in Ann. Mag. Nat. Hist., 
Ser. III, VII (1861), p. 452 (Notices No. 972), (Hypocopra Sacc. 
Syll. 1, 243) is the same as Sordaria platyspora—which should be 
regarded as a synonym of Sordaria scatigena (B. and Br.). 
