420 MONOGRAPH OF THE BRITISH SPECIES OP EUPHRASIA. 



which he has never seen in E. curta distinguish it. He further 

 remarks that future observation must determine whether the glan- 

 dular hairs are the result of hybridity. The plant from Fresh- 

 water Downs and Catherine's Cliff referred to in Wetts. Mon. 

 p. 132 as E. curta Prof. Wettstein now refers to E. occidentalis, as I 

 pointed out to him that it is glandular. See remarks under 

 S. boreal is. 



In the neighbourhood of Morar Bay, Inverness-shire, a plant 

 which I can only put to E. occidentalis occurs abundantly in short 

 pasture, very dwarf, often much branched and with small flowers, 

 the lobes of the lower lip of the corolla being often parallel- sided, 

 the lower leaves broad numerous and crowded, the bracts with only 

 an occasional glandular hair, and hybrids between it and E. brevipila 

 are found where the two plants grow together. These hybrids are 

 also of small stature and are generally morphologically nearer to 

 E. occidentalis, having its foliage and small flowers, but the whole 

 plant being very glandular. Another plant which I also refer to 

 E. occidentalis occurs on the cliffs facing the sea north-west of 

 Melvich, Sutherlandshire. It has also very small pale purple 

 flowers cuspidate bracts and is nearly glabrous; it is associated 

 with dwarf plants of E. curta, from which it is very distinct. I 

 cannot put these plants from Morar Bay and from Melvich cliffs to 

 any other species than E. occidentalis, and if I wrongly refer them 

 to it they must be distinct. E. occidentalis occurs in a glandular and 

 eglandular form ; the eglandular form may be known from dwarf 

 forms of E. gracilis by the green colour of its foliage, by its broader 

 leaves and bracts, by its more pronounced and numerous setae, 

 broader calyx-teeth and shorter capsule — from E. stricta and E. 

 borealis by its smaller flowers and non-aristate calyx and bracts, — 

 from E. nemorosa by its erect branches less acute and non-aristate 

 toothed bracts, from the glabrous form of E. curta also by its less 

 acutely toothed bracts non-erect in fruit, and from all these except 

 the last by its short spike and densely imbricated bracts, — from 

 dwarf and glabrous forms of E. brevipila by its small flowers and 

 non-aristate bracts. E. occidentalis is as yet a form which is little 

 known. Prof, Wettstein in his Monograph described it from speci- 

 mens found in one station, in France, though he now refers to it 

 specimens from stations in England and Ireland. It seems to be a 

 species with an area extending much further north, and its occur- 

 rence on the north-west and extreme north coasts of Scotland 

 extends its area very considerably; that it should occur in a 

 glabrous form is not surprising when we consider that E. brevipila 

 occurs in a glabrous form in the Highlands, a form which Prof. 

 Wettstein has never seen. 



7. Euphrasia latifolia 



Pursh. Flor. Am. sept. ii. p. 430 (1814).— Wettst. Mont. p. 186. 



Caulis erectus strictus simplex vel in parte inferiore vel ad medium 

 ramis panels erectis, pilis albidis crispulis reflexis obsitus rubescens 

 vel fuscescens, 5-18 cm. altus. Folia caulina pauca internodiis 

 elongatis, ovata vel cuneato-ohovata, obtusa utrinque dentibus 2-5 obtusis; 



