100 
he regards as a distorted and abnormal form of C. fistudosa. 
His reasons for so doing are:—(1) The measurements of the 
spores, 14-20 x 7-8p, thus showing the same variation in length as 
in C. fistudosa ; (2) the presence of latex tubes as in that plant ; 
and (3), the growth of normal C. fistulosa from plants of C. con- 
torta. 
There seems to be no reason for assuming that Von Hohnel's 
“oanz typische ” ©. contorta was other than the genuine plant, 
nor for regarding his conclusions as other than correct. C. 
Ardenia and C. contorta would therefore be reduced as synonyms 
of C. fistulosa. 
OZONIUM AURICOMUM LINK. 
By Carleton Rea, B.C.L., M.A., &. 
In the British Mycological Transactions for the season 1901, 
vol. i, p. 181, Dr. C. B. Plowright favoured us with a paper in 
which he traced a connection between the occurrence of Ozonzum 
auricomum Link growing round a flower pot containing a plant 
of Aspidistra and a growth of Coprinus domesticus Fr. which 
subsequently: attracted his attention to the matter. Dr. Lucien 
Quélet in his Flore Mycologique de la France, published in 1888, 
at p. 48 makes both Ozonium radians Pers. and auricomum 
Link to be the mycelial condition of Coprinus radians (Desm.) 
Fr. In the autumn of last year my friend Mr. W. B. Allen sent 
me on some Ozonium auricomum for identification, and in my 
reply I requested him to look out and see if he could not find a 
Coprinus growing along with it. A few days afterwards he met 
me at Wyre Forest and he then brought some of the Ozonium 
auricomum covered with a mass of Coprinus radians (Desm.) 
Fr. So it seems clear that two different species of Coprini arise 
from these Ozonium-like bodies. Since writing the above note 
Mr. D. A. Boyd informed me that he had connected the Ozonium 
with Coprinus micaceus Bull, and our President (Mr. (Arthur 
Lister) at the Epping Foray said that he had found it asso- 
ciated with Coprinus similis B. & Br., and C. micaceus in a vast 
growth on a thick log in front of his house at Leytonstone, but 
it was not nearly in such abundance as the brown velvet felt that 
preceded the growth of C. szmzlis. 
