HEPATIC^. 643 
Ganthorpe Broats and Oakwood, Castle Howard (Spruce, 
1840). 
In damp places near Malton, Scarbro', and near Wig'g"an- 
thorpe, fruiting- (M.B.S.) 
Near Hawnby (J. A. Wheldon). 
Fruiting^ Summer. 
CONOCEPHALUS Neck. 
I. Conocephalus conicus (Neck.) Dum. 
(Marchantia conica L.) 
Shady banks and ditches, by sides of mill ponds, 
common. 
Near Ganthorpe, and in Gilla Leys wood. Castle Howard, 
fruiting abundantly (Spruce, 1837). 
Saltersg-ate Beck, fruiting (M.B.S., 1853). 
On wet ditch sides near Old Mai ton (M.B.S.). 
Near Northallerton (J. A. Wheldon). 
Fruiting- March, only rarely. 
REBOULIA Raddi. 
I. Reboulia hemisphaerica Raddi. 
[Marchaniia hcmispJicErica L.) 
On damp rocks in woods and shady places, not common. 
Oak wood, Castle Howard (Spruce, 1846). 
Ray wood. Castle Howard (R. Cross, 1876). 
Roulston Scar and White Force, Teesdale (Ing-ham). 
Fruiting- Summer. 
PREISSIA Corda. 
I. Preissia commutata (Lindenb.) Nees. 
[Marchantia heinisphccyica L.) 
Wet places on stones, &c., by streams, amongst the 
hills, not uncommon. 
J anuary, 1906. 
