ADDITIONAL SPECIES. 281 



parallel and close to one another. When magnified, these 

 fibres are nearly pellucid, linear-oblong, and membranous, 

 not unlike the plants of the parasitical genus Erineum. 



RESEDA, (p. 104.) 



2. R. lutea, leaves deeply 3-lobed, lower ones pinnatifid, va- 

 riable ; calyx in 6 divisions ; flowers buff '-coloured ; petals 6, va- 

 riously lobed. Wild Mignonette. 



Hob. Waste places. Last summer I found two patches 

 growing on Spittal links ; and as the plant is not culti- 

 vated, it seems entitled to a place in our Flora. Aug. 

 



SPIRAEA, (p. 107.) 



2. S. salicifolia, shrub ; leaves elliptic-lanceolate, unequally ser- 

 rated, smooth ; flowers rose-coloured, small, in elegant upright 

 terminal clusters. Willow-leaved Spircea* 



Hob. Marchmont woods, apparently quite wild, Mr R. 

 D. Thomson. A common ornament of shrubberies, and, 

 after all, a somewhat doubtful native. July. 



ROSA, (p. 108.) 



9. R. ctesia, fruit elliptical, smooth ; flower-stalks smooth ; calyx 

 distantly and sparingly pinnate ; prickles hooked, uniform ; leaf- 

 lets elliptical, somewhat doubly serrated, glaucous, hairy beneath, 

 without glands. 



Hob. On the bank at the road-side above Whiteadder- 

 bridge. July. 



A compact much branched shrub, about 3 feet high, remark- 

 able for the peculiar greyness of its foliage. Branches 

 smooth, more or less blistered and coloured, armed with 

 scattered light brown very slightly curved prickles, often 

 placed in pairs at the base of the young shoots. The 

 leaves are altogether without glands; stalk downy, fur- 

 nished with 2 or 3 prickles beneath ; stipules oblong, with 

 spreading points, smooth, veined, downy, and more or less 

 glandular on the margins ; leaflets 7 or 5, ovate, 1 inch 

 long, fths broad, rugose, simply or irregularly serrated ; 

 upper surface smooth, or thinly covered with appressed 

 hairs, the under one caesious and hairy all over. Flowers 



