42 
Geo. K. Sutherland. 
MONOSPORIUM MARITIMUM NOV. SP. (Fig. 3, 3-5). 
Mycelium creeping ; fertile hyphae, erect, hyaline with tree¬ 
like branching, densely interwoven to form a hemispherical mass; 
conidia hyaline or cream-coloured, borne singly on tapering 
branches, elliptical forms 14-20 [x x 6/x, oval 12 x 8/x. 
Hab. Saprophytic on decaying seaweed. Dorset. 
Fig. 3. Fusidium maritimum (1-2), Monosporium maritimum (3-5) and 
Sporotrichum maritimum (6-7) 7, conidiophores and concatenate conidia of 
Fusidium ; 2 , conidia ; 3, tip of branched conidiophore of Monosporium ; 4, 
branch with terminal conidium ; 5, types of conidia ; 6, mycelium and 
conidiophores of Sporotrichum ; 7, conidia. 
The characteristic, irregular, pulvinate masses of this fungus 
are to be found wherever Laminaria fronds are decaying under 
fairly moist conditions. Like Fusidium it usually occurs along with 
Cladosporium. The mycelium is richly developed and forms a 
closely woven mass from which arise the erect much-branched 
fertile hyphae (Fig. 3, 3). The branching is varied, sometimes 
dichotomous, sometimes whorled. The conidiophores are densely 
packed together and taper upwards. At their tips are borne the 
single elliptical or oval conidia. These are smooth-walled, hyaline 
or cream-coloured. This genus is poorly represented in Britain. 
