4 THE JOUllNAL OF BOTANT 



rough on the margins. Corolla purplish, pubescent externally,' 

 marked with darker lines within, smaller than that of E. officinalis 

 { = !!. Bostkoviana) ; upper lip bilid, with tridentate segments, lower 

 lip pubescent, trifid, with emarginate segments. Capsule obcordate, 

 pubescent." 



The salient features of Wettstein's account (Mon. p. 93) are : — 

 Stem erect, simple or with few ascending branches in the lower part, 

 and up to 75 cm. in height ; lower leaves quickly caducous ; upper 

 cauline leaves, as well as bracts, Avith aristate teeth ; s^oike soon 

 elongate ; calj'^x not accrescent in fruit ; corolla pale violet, rarely 

 blue or white ; and capsule narrow, cuneate-obovate, truncate or sub- 

 emarginate, not exceeding the calyx-teeth. Wettstein's diagnosis is 

 repeated by Townsend (/. c), and coincides with that of Chabert 

 {Les Euphrasia de la France in Bull. Herb. Boiss. 2me ser. ii. 277 

 (1902)), except that the last-named author gives the maximum height 

 as 40 cm. only. 



Wettstein and Chabert agree in combining with E. stricta the 

 French E. ericetorum and E. rigidula of Jordan, and they cite, for 

 the most part, the same exsiccata. Four of the sets quoted. Billot 

 nos. 272-4, 2724 bis, 3672 and 3672 bis, are represented in Herb. Mus. 

 Brit. ; and they evidently belong to one species and are identical with 

 other Austrian material sent out as E. stricta. These exsiccata agree 

 generally with the descriptions and with the figures of original 

 E. stricta and E. ericetorum on Wettstein's plate (vii. 5 & 6) ; but 

 Townsend's figure of E. stricta (Journ. Bot. xxxv. t. 374), taken 

 from a Lausanne specimen, does not appear to me characteristic. 



From these descriptions, figures and exsiccata it is possible to 

 determine E. stricta with some accuracy. It is a notably tall plant 

 — according to Wettstein it may reach nearly twice the height of any 

 other British Eyebright, — of strict habit and with few nearly erect 

 branches at some distance from the base. It will be noticed that 

 Avhile Host says the plant is branched above, Wettstein terms it 

 " branched in the lower part," which would be applicable at a later 

 stage of growth. The only British Euphrasia approaching this habit 

 is E. qracilis, which may be said to simulate a miniature E. stricta. 

 The leaves (especially the floral) are peculiar for their spreading 

 aristate teeth, which give them a pectinate aspect and almost recall 

 some forms of E. salishurgensis. They are readily caducous, so that 

 during most of the flowering period the lower parts of the stem and 

 branches are naked. The calyx is relatively small and remains so in 

 fruit, not becoming accrescent or inflated as in E. nemorosa. The 

 characteristic pale purple tint of the corolla, which is rather large 

 though less than in Continental E. jRostkoviaiia, is uniform in all 

 the specimens that I liave seen. The fruit, though variable in shape 

 in this as in other EuphrasicB^ is generall}^ narrow and truncate as 

 described by Wettstein, and is smaller than in many other species. 

 I cannot understand Host's definition of this organ as obcordate. 



Of the English and Scottisli plants referred to E. stricta I have 

 seen none that shows this combination of characters, or even possesses 

 the strict robust habit, with nearly erect central l)rancliing, that is 



