334 THE JOURNAL OF BOTANY 



blue, turning to pale slaty blue when dry ; anthers a little longer 

 than filaments ; nutlets intermediate between those of the parents, 

 faintly areolate, dotted with minute scattered points, shining, 

 slightly constricted above the broad base. 



Banks of the Land Yeo near Gatcombe Manor, Flax Bourton, 

 and Wraxall ; Oakford Valley, near Bath ; Warminster Eoad 

 betweeen Bath and Monkton Combe. 



X S. LiLACiNUM mihi. {S. officinale a ochroleucum x /^ purjpureum 

 X < peregrinuvi.) Habit and stature of S. i:)eregrinum, sparingly 

 fertile. Stem asperous, more conspicuously winged than in 

 X S. discolor', lower leaves elliptic-lanceolate, rounded or attenuate 

 at the base, narrower as a rule than in x S. discolor, upper lan- 

 ceolate with broader decurrent base ; fruiting-calyx setose ; corolla 

 purplish with greenish-yellow tip when in bud, then pale purplish- 

 rose, slaty-blue tinged with purple when dry ; anthers as long as 

 the filaments ; nutlets as in x >S. discolor. 



Bank of the Land Yeo, Wraxall. 



My friend Mr. J. W. White, to whom few plant-localities 

 in this district are unknown, conducted me to the secluded 

 and to me unsuspected spot on the banks of the Land Yeo 

 where S. ^eregrinum grew in great luxuriance and perfection. 

 Amongst plants bearing flowers varying from rose-colour to a 

 beautiful blue of the purest tint, the plant described above was 

 conspicuous for the evident admixture which it contained of the 

 two colour-varieties of S. officinale, both of which occurred in the 

 neighbourhood. Although it possessed the habit and stature of 

 S. ^eregrinum, the winged stem, derived from S. officinale, showed 

 that it was not a mere colour-variety of the former species. 



The difference between this plant and x S. discolor caused 

 by the additional influence of the var. purpureum is very marked 

 in the fresh state, but it must be confessed that the two forms are 

 difficult to separate when dry, the principal characters to be relied 

 on in this case being the generally narrower lower leaves, more 

 gradually attenuated into the petiole, and the slight purple tinge 

 in the slaty-blue of the dried corolla. 



x S. DENSiFLORUM mihi. {S. officinale j3 purjnLreum x >'pere- 

 grinum.) Habit of S. officinale, but often taller, fertile or sterile. 

 Stem asperous, narrowly winged ; lower leaves narrowly oblong- 

 lanceolate, shortly attenuate at the base, upper narrowly lanceo- 

 late, conspicuously decurrent ; flowers large, open, crowded ; calyx 

 with acute segments, hispid, rarely tubercular-setose in fruit ; 

 corolla reddish-violet, dark purple when dry ; anthers as long or 

 longer than filaments ; nutlets as in x S. discolor, but often 

 olivaceous-black. 



Bank of the Land Yeo, near Gatcombe Manor, and Flax 

 Bourton ; Oakford Valley, near Bath. 



A group of plants in cultivated ground at Fishponds, near 

 Bristol, must be placed here, although I have not seen either of 

 the parent species in the immediate neighbourhood. The presence 

 of blue as well as purple in the flowers, the subcordate lower 

 leaves, and the granulated nutlets, which are sparingly produced 



