ROSE TRTBE 



83 



plant 2-4 feet high ; leaves pinnate, the alternate leaflets smaller, 

 downy beneath, the lerniinal leaflet large and 3dobed ; flowers 

 yellowish white, crowded into compound erect cymes, very fragrant. 

 Moist meadows ; common. — Fl. Jul}', August. Perennial. 



2. S. Filipendula (Dropwort). — An erect herbaceous plant 1-2 

 feet high ; haves pinnate, with the alternate leaflets smaller, all 

 deeply cut into narrow, serrated segments ; flowers in a panicled 

 cyme, less crowded than in the last, the petals pink externally before 

 they expand, and when open white and scentless ; the rootlets have 

 swollen nodes or tubers. Dry pastures, especially on limestone soil. 

 A variety with double flowers is common in 

 gardens. — Fl. July to September. Perennial. 



3. S. salicifolia (Willowdeaved Spirea). — A 

 shrubby species 4-5 feet high, with spike-like 

 clusters of rose-coloured flowers and simple (not 

 pinnated) leaves. It is occasionally found in 

 damp situations in the north, but is not indi- 

 genous. — Fl. July, August. Perennial. | 



3. Dryas (Mountain Avens) 



I. D. odopetala (Mountain Avens). — The only 

 British species. Stems hard and thick, creeping ; 

 leaves oblong, deeply cut, white with woolly down 

 beneath ; flowers white, large, and handsome, 

 borne singly on erect simple stalks 2-3 jnches 

 high ; petals usually 8. Not uncommon in the 

 mountainous parts of England, Scotland, and 

 Ireland, and easily distinguished by its handsome 

 white flowers, which are an inch or more in dia- 

 meter. — Fl. June, July. Perennial. 



Dryas Octopetala 

 [Mountain Avens) 



4. Geum {Avens) 



1. G. tirhanum (Common Avens, Herb Ben- 

 net). — An erect, somewhat slender, little 

 branched plant, 1-2 feet high ; root-leaves pin- 

 nate, with smaller leaflets at the base ; stem- 

 leaves ternate ; flowers erect, yellow ; awns 

 rigid, hooked at the end ; stipules large, 

 rounded, and cut. Hedges and thickets ; com- 

 mon. — Fl. June to August. Perennial. 



2. G. rivale (Water Avens). — Not so tall as 

 the last, and stouter, the fl.owers drooping, not 

 so spreading ; root-leaves pinnate, with the 



Geum Urbanum (Com- alternate leaflets and those at the base smaller ; 

 mon Avens, Herb Bennet) stem-leaves ternate ; the calyx is deeply tmged 



