PLANTS OF CAITHNESS 171 



inches high. The heaths Calluna and Erica Tetralix grew 

 on Holborn Head in a very prostrate form, the latter often 

 white-flowered. 



*Myosotis palustris, var. nemorosa, Besser. On the Reay sands, by 

 a small rivulet. A nearly glabrous form, differing chiefly from 

 strigulosa in the leaves being nearly destitute of hairs, and in 

 having somewhat larger flowers. It is intermediate between 

 var. strigulosa and var. ccespitida, DC., and is a very beautiful 

 plant. 



Myosotis caespitosa, Schult. Near Olrig. 



Pneumaria maritima, Hill. --Very beautiful and plentiful near 

 Downreay on shingle, also at John o' Groat's growing in shell 

 sand. 



fSymphytum asperrimum, Bieb. Thurso. 



Statice linearifolia, Laterr. This appeared to be the only species 

 on the Caithness cliffs, where it varies extremely in size. At 

 Holburn Head it was very dwarfed with very narrow leaves, 

 and sometimes from the pressure resulting from the contiguity 

 of the plants, the rosettes had a geometric appearance like the 

 markings on a tortoise. On the cliffs near Clairdon Hill Mr. 

 Lindsay told me he had seen a bracteate form. 



Primula scotica, Hook. Was in nice flower. The odour recalls that 

 of our common Primrose, but is more delicate. The plant 

 appeared to prefer the barer portions of a dampish peaty turf, 

 and nearly full exposure. On the Dunnet Links it grew in 

 humus on the sand. It does not appear to grow far from the 

 coast. 



Mimulus langsdorffii, Don. Occurred at Reay as the form with 

 spotted corolla, var. guttatus (DC). 



Bartsia odontites, Huds., var. *litoralis (Reichb.). By the sea at 

 Downreay, and less typical in a pasture near Towerhill, about 

 two miles from Thurso. 



Euphrasia latifolia, Pursh. Very abundant on the cliffs at Down- 

 reay, local at John o' Groat's. 



E. brevipila, Burn, and Gremli, var. subeglandulosa, Towns. In 

 shell sand near Clairdon. The type is common. 



E. Borealis, Towns. Scrabster. 

 E. Foulaensis, Towns. Scrabster. 



E. curta, Fries. , var. glabrescens, Wetts. Thurso. The abundance 

 and beauty of the form of Euphrasia on the cliffs, especially 

 about Reay, must be seen to be realised. 



Rhinanthus minor, Ehrh. Common. 



