644 baker's north YORKSHIRE. 
Near Winch Bridge, and at the White Force Cronkley, 
Teesdale (Spruce, 1843). 
Goathland Beck and Saltersgate Beck (M.B.S., 1863). 
Coatham Marshes (W^. Ingham, 1899). 
Mallyan Spout and White Force, Teesdale (Ingham). 
Fruiting^ Springs and Summer. 
SUB-ORDER III.— RICCIACE/t. 
RICCIA MicheH. 
I. Riccia glauca (L.) 
On banks in moist places, not common. 
Near York (G. Webster). 
Strensall Common (W. Ing-ham, 1902). 
Fruiting* Spring". 
RICCIELLA A. Braun. 
I. Ricciella fluitans A. Braun. 
{Riccia flluitans L.) 
IJitches and stagnant waters, not common. 
Ditches by the Foss at York CSpruce, 1843). 
Askham Bog: near York (J. A. Wheldon). 
RICCIOCARPUS Corda. 
I. Ricciocarpus natans Corda. (L.) 
{Riccia natdns L.j 
Stag"nant waters, not common. 
Near York (W. West, 1879). 
Gathered abundantly in brick ponds near Askham Bog^, 
^'ork, on the occasion of the Y. N.l\ excursion, June 4, 
1900 (M.B.S.) 
Appleton Roebuck (Ingham). 
