[Crown Copyright Reserved. 
ROYAL BOTANIC GARDENS, KEW. 
BULLETIN 
OF 
XIV.—THE BRITISH SPECIES OF MELANCONIUM. 
W. B. Grove. 
The species of Melanconium, like many others of the commoner 
Coelomycetes,* have been much confused by authors and col- 
ectors. I 
and in the genus Melanconium this has been perpetuated and as 
it were stereotyped by a few unfortunate errors in Saccardo’s 
Sylloge. 
The following account of the British species will show that they 
can be arranged in three distinct sections :— 
§ 1. Melanconium (sens. strict.), with smoky-brown or 
blackish spores, exuding as tendril-like masses. 
§ 2. Lamproconium, with bright coloured spores (in this case, 
ue). 
when beaten e Tal 
a thin black layer closely adherent to the 
he bark around the orifice. : : 
In the third section, owing to the want of this mucilage, the 
spores on their escape become scattered over the matrix as an 
* See Kew Bulletin, 1917, p. 51. ; Sua! ; 
(5882.) Wt. 196—794. 1,125. 6/18. J.T. &S., Ltd. G. 14. Sch. 12. 
