PREISSIA 61 
(Miss Macv.); Cockburnspath (M‘And.); Dryburgh Abbey 
(Macv.). Haddington: Douglas Dean, v.c. (Evans); Had- 
dington (Evans). Hdinburgh: Hermitage (M‘And.); nr. 
Gorebridge (Evans); Bilston Burn (Evans); Rosslyn Woods, 
on rocks by riverside (Evans); Bonally Tower (M‘And.); 
Colinton Dell, in plenty (M‘And.); Dalkeith Park (Evans). 
Linlithgow: Carriber Glen (Evans); by side of Almond 
river, Dalmeny (Evans); Dalmeny Wood (M‘And.). 
S.E. HicHLanps.—Fife and Kinross: Footpath, Raith 
(Young). #. Stirling: Causewayend nr. Manuel (Evans). 
S. Perth: Banks of the Teith nr. Doune (K. & S.). 
Mid Perth: Methven Wood on rubbish-heap (Meld.). 
N. Perth: Nr. Coupar-Angus (W. M. Scott). 
Mip E. HicHLanps.—Forfar: Arbirlot, on rocks below 
bridge (J. Aimer). Kincardine: Roadside at Mill near 
Dunnottar (M‘And.). 
W. HicHLaNps. — Kintyre: Tarbert (Ewing). Clyde 
Isles: Bute (Ewing). Dumbarton: Shandon Hydropathic 
(Miss P. Macv.); Manse garden wall, Arrochar (Macyv.). 
W. Inverness: In a greenhouse, Moidart (Macv.). 
INNER HEpRIDES.—S. Inner Hebrides: Distillery, Port 
Ellen, Islay (Gilm.); Kildalton grounds (Ewing). 
. Upper N. HIGHLANDS. — Caithness: Manse garden, 
Watten (Lillie). 
PREISSIA Corda 
Chomiocarpon Corda 
PREISSIA QUADRATA (Scop.) Nees 
P. commutata Nees 
Widely distributed from Dumfries to Shetland, but fre- 
quent only in the Highlands. It is uncommon in the West 
Lowlands, and almost confined to the subalpine districts. 
It is very rare in the East Lowlands and is confined to sub- 
alpine localities, with the exception of one station in damp 
hollows on a sand-dune. Is uncommon in Fife and the low- 
lying ground of the East and North Highlands, but is 
frequent and sometimes common over the hilly districts of 
the Highlands, ascending to 3300 ft. in Perthshire. It is 
frequent in the West Highlands and in some of the 
Hebrides, especially on the lower ground. Although it is 
