226 SUMMER FLOWERS. 



out; pod twice as long as the calyx, the upper edge nearly 

 straight, the lower semicircular, bordered with short, sometimes 

 prickly teeth. — Limestone districts, cultivated for forage. FI. 

 June, July. 



(81) Spiraea. 



S. Ulmaria : stems erect, rather stout, 2-3 feet high, gla- 

 brous, reddish; leaves large, interruptedly pinnate, with 5-9 

 ovate or broadly -lanceolate, irregularly -toothed segments, 

 green above, soft and whitish beneath, the terminal one deeply 

 divided into three, besides several smaller segments along the 

 common stalk ; stipules broad, toothed ; flowers small, yellow- 

 ish-white, sweet-scented, numerous, in compound corymbose 

 cymes at the summit of the stems ; capsules 5-8, very small, 

 more or less spirally twisted. — Meadow-sweet. — Meadows and 

 banks of streams. Fl. June to August. 



S. Filipendula : stems erect, 1-2 feet high ; leaves chiefly 

 radical, 3-5 inches long, with numerous small, oval, oblong 

 or lanceolate segments, deeply toothed or pinnately lobed, 

 green, glabrous; stipules broad, adhering to the leafstalk 

 nearly their whole length ; flowers creamy white, often tipped 

 with red ; carpels 6-12, not twisted. — Dropwort. — Meadows, 

 pastures, and open woods. Fl. June, July. 



(82) Potentilla. Potentil. 



* Leaves digitate. 

 •f- Petals usually four. 



P. Tormentilla : stems erect, or procumbent from a thick 

 woody rootstock, forked, silky-hairy ; lower leaves often shortly 

 stalked, upper ones always sessile, consisting of three, rarely 

 five, deeply-toothed leaflets; peduncles in the forks of the 



