

114 
producing on germination an amoeboid body, these bodies flow 
together and gradually creeping upwards they build up the stalk 
and the head of naked spores. 
The genus Dictyostelium forms part of a small group of 
organisms the Acraszee. hey were included among the 
Mycetozoa by De Bary but have been separated off from those 
by recent writers, on the ground that they do not form a true 
plasmodium. 
D. mucoroides Bret. 
Whole plant greyish white ; stalk gradually tapering upwards ; 
head of spores round, varying very much in size, dispersing when 
touched; spores elliptical, variable in size, usually about 
5 by 24 p, colourless. 
My attention was first called to this plant by Mr. F. Jenkin 
who found it growing on an old cardboard box at Newport some 
years ago. I have again found it growing on some rabbit dung 
that I gathered at Llanwymawddwy, N. Wales, in Aug. 1899. 
The material was put away in a perfectly dry condition for some 
months, then when moistened and kept damp, this and other 
fungi grew abundantly. I cannot find any record of Dectyostelium 
for this country. Mr. Jenkin first detected it in January 1897. 
It can only be seen under the microscope and in a growing 
condition. 
Didymocladium Sacc. Syll. Fung. IV. p. 186. 
Fertile hyphz erect, veticillately branched ; conidia borne at 
the tips of the branches, elliptical, 1-septate, catenulate, colourless. 
D. ternatum Sacc. Cladotrichum ternatum Bon. Handb. p. 78 
fig.86. Forming white woolly tufts, branches short usually in verti- 
cils of three, tapering to the tips which are inflated more or less with 
conidia in formation ; conidia elliptical in rather long chains with 
a tendency to drop apart. The size of spores is not given; 
in the specimen under examination they measure 12-15 jm by 55 
as the other characters agree with the above description I have 
no hesitation in assigning it here. Found by Rev. W. L. W. 
Eyre on old Stereum at Alresford, Hants. Dec. 1899. 
Irichosporium splenicum Sacc. and Berl. Miscell. Myc. II. No. 
137. t. 1X. f. 14 (In Venezia Istit. Atti ser 6. Vol. IIL pi @ 
p. 141. 1885). 
Effused, velvety, blackish-brown; hyphe erect, continuous, 
olive-brown, branched, 120 by 3 p, the branchlets asperulate at 
the tips ; spores obovate-reniform 4-5 by 2-3 pw often 1-guttulate. 
olive-brown. | 
Forming velvety patches on bark of decaying wood. Lilanwy- 
mawddwy, N. Wales. Coll. Aug. 1899. 




