56 EXTRACTS FROM REPORT OF BOTANICAL EXCHANGE CLUB, 1887. 



(slightly arcuate), and sometimes of a more or less uncinate form, 

 recalling those of B. canina. In the presence of this last fact, — 

 which is at least rare in R. tonientosa, — we must seek with care for 

 the practical characters which permit us to distinguish with certainty 

 this aberrant form (var. uncinata) of Rosa tomentosa from certain 

 glandular-leaved varieties of Pi. coriifolia. In the distribution which 

 will be made of this variety uncinata, it would be well if each portion 

 were represented by two specimens : one with the caulinary prickles 

 hooked, and the other with the caulinary prickles slightly arcuate. 

 In the three specimens which you have sent me, the middle leaves 

 of the flowering branchlets are pretty often 9-foliate, which is rare 

 in R. tomentosa.' " — Charles Bailey. 



Aster Xoi'i-Beif/ii L. Probably an escape from cultivation. It 

 has now established itself in a wet place, frequently overflowed, by 

 the side of the tidal New Bedford Eiver. This plant has not spread 

 by seed at present, but increases by its abundantly-x^roduced stolons. 

 From the single patch or cluster of stems some hundreds of flowering 

 shoots were produced last autumn. The locality seems thoroughly 

 suited to the requirements of the plant, and it will be a matter of 

 great interest to see whether, in so favourable a situation, seedlings 

 will be able to spring up. Mr. Arthur Bennett kindly named this 

 plant, and compared it with the fine specimens at Kew. — Alfred 

 Fryer. 



Pyrethrum corymbosiim W. On the quay, Bangor, where it has 

 been estabhshed eight or ten years, 20th August, 1887. — J. E. 

 Griffith. ' ' I named this plant for Mr. Griffith with some hesitation, 

 as it has a much more condensed inflorescence than the ordinary 

 continental species. It is the stunted inflorescence, and the absence 

 of the ray florets, which have led to its being passed over as Tana- 

 cetum vulgare. As far as I know, it has not previously been recorded 

 amongst aliens in Britain." — Charles Bailey. 



Melampyrum jjratense L., hians Druce. By the Findhorn side, 

 near Logic, Nairn, 95. The only form noticed in this locality, 

 where it was very abundant. The flowers, which are spoiled in 

 drying, are of a beautiful golden-yellow, even to the tube. The 

 bracts are but slightly toothed, the capsule frequently suberect, and 

 the flowers assume a much more erect position than is usual in 

 pratense forms. The flowers were of the exact size of those of var. 

 montaniim (Johnst.), which was the prevailing moorland form of 

 Easterness. The corolla is not closed. At first I was inclined to 

 refer this to the var. luteum Blytt, but Eev. F. Wood informs me 

 that luteum has very toothed bracts, and numerous whorls of flowers. 

 It is a common plant of the birch zone, in Norway. In Britain, 

 hians has now been reported from Wigton, Northumberland, Cum- 

 berland, Westmoreland, and Nairn. — G. Claridge Druce. 



Mentha sylvestris L., nemorosa. Eiver-bank, Whitney, Hereford- 

 shire, 7th August, 1887.— AuGusTiN Ley. '* The observations on 

 M. pubescens (below) apply to this plant. Willdenow's description 

 appHes equally to several different forms, and, notwithstanding, 

 does not fit in any way the specimen sent me under the name of 

 M. nemorosa. It is a very remarkaible plant, and certainly is worthy 



