196 



ROSACEAE. 



Flowers in dense terminal panicles. 



Glabrous or nearly so throughout. 



Twigs and lower surfaces of the leaves woolly-pubescent. 

 Flowers in terminal corymbs. 



Leaves broadly oval or ovate, thick, serrate. 



Leaves oblong, thin, nearly entire. 



[VOL. II. 



1. 5. salicifolia. 



2. S. lomentosa. 



3. 5". corymbosa. 



4. S. Virginiana. 



i. Spiraea salicifolia L. Willow- 

 leaved or American Meadow-sweet. 

 Quaker Lady. (Fig. 1883.) 



Spiraea salicifolia L- Sp. PI. 489. 1753. 



An erect shrub, 2-4 high, simple, or 

 branched above, nearly glabrous. Leaves 

 petioled, oblanceolate, obovate, lanceolate 

 or oval, glabrous or very nearly so, sharply 

 serrate, especially above the middle, i / -2 / 

 long, 4 // -i2 // wide, or on young shoots 

 much larger, obtuse or acutish at the apex, 

 mainly cuncate at the base, pale beneath; 

 stipules deciduous or none; flowers white or 

 pinkish-tinged, 1"-$" broad, in dense ter- 

 minal panicles; follicles glabrous. 



In swamps or moist ground, Newfoundland to 

 the Rocky Mountains, south to Georgia :m<l 

 Missouri. Also in northern Europe and Asia. 

 Called also Queen-of-the-Meadow. June-Aug. 



2. Spiraea tomentdsa L. Hardhack. 

 Steeple-bush. ( Fig. 1 884. ) 



Spiraea lomentosa L. Sp. PI. 489. 1753. 



Erect, shrubby, usually simple, the stems 

 floccose-pubescent. Leaves short-petioled, ovate 

 or oval, i '-2' long, 6 // -l2 // wide, unequally ser- 

 rate, obtuse or acutish at the apex, narrowed or 

 rounded at the base, glabrous and dark-green 

 above, woolly-pubescent with whitish hairs be- 

 neath; stipules deciduous or none; flowers pink 

 or purple, rarely white, about 2" broad, in dense 

 terminal panicles; follicles pubescent. 



In swamps and low grounds, Nova Scotia to 

 Manitoba, south to Georgia and Kansas. July-Sept. 



3. Spiraea corymbdsa Raf. Corymbed 

 Spiraea. (Fig. 1885.) 



Spiraea corymbosa Raf. Prec. Decouv. 36. 1814. 

 Spiraea betulifolia var. corymbosa S. Wats, in A. 

 Gray, Man. Ed. 6, 153. 1890. 



A shrub, i-3 high, simple or little branched, 

 nearly glabrous throughout. Leaves petioled, 

 rather thick, oval, ovate or orbicular, narrowed, 

 rounded or slightly cordate at the base, obtuse at 

 the apex, unequally serrate with pointed teeth, es- 

 pecially above the middle, green above, paler and 

 sometimes minutely pubescent beneath, i^'-s' 

 long, i / -2 / wide; stipules deciduous or none; flow- 

 ers white, about 2" broad in dense compound 

 terminal often leafy corymbs; follicles glabrous. 



On banks or in rocky places, mountains of Georgia 

 to New Jersey. May-June. 



