54 THE DISTRIBUTION OF HEPATICZ IN SCOTLAND 
Riccia LESCURIANA Avst. 
R. glaweescens Carr. 
This is a rare species in Scotland, and is almost confined 
to the south and east of the country. It has been found 
more frequent]y in the East Lowlands than elsewhere, and 
has not been found in the West Highlands to the north of 
the Clyde area. The few localities at present known for 
the plant hardly give much information as to the geological 
formation which it prefers, further than a preference for 
the Carboniferous area in which limestone occurs. It has 
been found on rocks, sides of reservoirs, and on a sand-dune. 
Fruit is common, and is mature from July to November. 
S.W. LowLanps.—Kirkcudbright : East of Cairn Edward, 
New Galloway (M‘And.). Wigtown: Nr. Portpatrick 
(M‘And.). 
N.W. Lowianps.—Renfrew: Castle Semple Loch, cfr., 
1887 (Ewing). 
E. LowLtanps.—Haddington: Gullane Links (M‘And.). 
Edinburgh: Clubbiedean Reservoir, cfr. (Evans); do. 
(M‘And.); Thriepmuir Reservoir (Evans);  Harperrig 
Reservoir (Evans). Linlithgow: Dalmeny, nr. sea-shore, 
cfr. (M‘And.). 
S.E. HicHtanps.—Fife and Kinross: Tents Muir, efr. 
(G. West and Miss Ogilvie). 
Mip E. HicHLANps.—Forfar: Sidlaw Hills (J. Aimer) ; 
Loch Long, Newtyle, cfr. (G. West). 
W. HicHLANDS.—Dumbarton: Loch Humphrey (Ewing 
and West). 
RICCIA CRYSTALLINA J. 
Very rare, and confined to the eastern side of the country 
south of the Tay. Forms rosettes on mud at the sides of 
ponds and reservoirs. Fruit has been found mature from 
August to September. 
E. LowLanps.—F vdinburg gh: Glencorse Reservoir, 1905 
(M‘And.); do.(Evans); Torduff Reservoir (Evans) ; Clubbie- 
dean Reservoir (Evans); Loganlee Reservoir (Evans). 
S.E. HiGHLANDsS.—Fife and Kinross: Edge of pond, 
Tents Muir, cfr. (Aimer); Burntisland Reservoir (Evans). 
