79 
NOTES ON NEW OR RARE BRITISH FUNGI. 
By Malcolm Wilson, D.Sc., F.L.S., F.R.S.E. 
University of Edinburgh. 
DASYSCYPHA CALYCIFORMIS (Willd.) Rehm. 
On the trunk of Picea excelsa Link; collected by Dr A. W. 
Borthwick, Keir, Stirlingshire, March 1914, and by Mr J. M. 
Murray, near Peebles, December 1920. 
This species, which has not been previously recorded in 
Britain, is a wound parasite causing cankers on the spruce 
similar to those produced by D. calvcina Fuck. on the larch; 
it has also been described on Abies pectinata DC., A. stbirica 
Ledeb., Larix europaea DC., Pinus sylvestris L. and P. Pumilio 
Haenke on the continent. Although often occurring as a sapro- 
phyte it has been shown by Wagner (Zeits. f. Pflanzenkrank- 
heiten, Bd. v1, 1896, p. 321) to be parasitic on the silver fir, and 
Zederbauer (Centralbl. f. d. gesamte Forstwesen, Heft 1, 1906) 
describes it as causing a serious disease of the spruce in Austria. 
It closely resembles D. subtilissima Cke. but is distinguished 
from that species by the following characters: 
D. subtilissima, asci 65-70 x 7-8; ascospores slightly 
curved, 8-10 x 2; paraphyses equal in length to the asci. 
D. calyciformis, asci 50-60 x 4°5—-5 w; ascospores elliptic or 
spindle-shaped, straight, 5-7 x 2:5-3 ; paraphyses longer than 
the asci. 
The conidial fructifications which have been described by 
Schellenberg (Mitt. d. Schweiz. Zentralanst. f. d. forstl. Ver- 
suchsw. Bd. 111, H. 3, 1905, p. 269) were abundant on one of 
the specimens. The pustules are whitish on the exterior, and 
are surmounted by the dull yellow mass of conidia; after 
washing away the conidia they are seen to be slightly cup- 
shaped with deep tortuous unfoldings of the surface so that in 
section they appear to be divided into a number of chambers; 
the conidia are about 3 x Ip and are borne terminally on 
simple conidiophores which form a continuous layer on the inner 
surface of the fructification. The suggestion made by Hartig 
(Bot. Centralbl. Bd. 37, p. 78, 1889) that Phoma abietina Hart. 
is the conidial stage of this species was only founded on the 
juxtaposition of the two fungi and appears to be incorrect. 
HYPODERMA PINICOLA Brunch. 
On the living leaves of Pinus sylvestris L., Glen Lochy, near 
Dalmally, Argyllshire. Collected by Dr A. W. Borthwick, 
September 1920. 
