130 ROSACEAE (ROSE FAMILY) 



very many ; style lateral. (L. fragans = fragrant ; from the odor of the 

 fruit.) Fruits edible. 



A. Pubescence of the scapes and petioles spreading, generally at right angles or some- 

 what reflexed. 

 B. Leaves densely silky beneath; akenes in shallow pits. 



C. Terminal leaflet plainly petiolulate; sepals acute or mucronate; often culti- 

 vated. W. F: chlloensis 



CC. Leaflets all subsessile; sepals acuminate. W. C. E. F. cuneifolia 



BB. Leaves slightly silky beneath, glabrate when old. 



D. Leaflets subsessile; akenes not in pits, superficial. W. C. E. F. americana 

 DD. Leaflets petiolulate; akenes in pits. 



E. Plant more or less glaucous; petals oval or orbicular, twice as long as the 



sepals. 



F. Sepals and bractlets elliptic. E. F. truncata 



FF. Sepals and bractlets lanceolate. E. F. platypetala 



EE. Plant not glaucous; petals roundish-obovate, ij times as long as the sepals. 



W. F. grandiflora 



AA. Pubescence of the scapes and petioles appressed or ascending; akenes in 



pits. 



G. Flowers 2-3.5 cm. wide; leaves finely tomentulose beneath. (See C.) 

 GG. Flowers 1-2 cm. wide; leaves not tomentulose beneath. E. F. ovalis 



DRYMOCALLIS 



Perennial. Leaves pinnate, glandular. Flowers in cymes. Calyx 

 segments 5. Petals obovate to orbicular, yellow or white. Stamens 20-30, 

 in 5 clusters. Receptacle hemispheric. Pistils many. (Gk. drymos = a 

 brushwood, kallos = beauty; from their growth in open woods.) Too 

 difficult for beginners. 



SANGUISORBA (BURNET) 



Leaves pinnate; leaflets petiolulate; stipules none. Spikes long-ped- 

 uncled. Calyx segments petal-like. Pistils 1-3 ; style terminal. (L. 

 sanguis = blood ; sorbere = to absorb ; from reputed styptic proper- 

 ties.) 



A. Leaflets toothed. 



B. Calyx segments white or slightly tinged with purple. W. E. S. sitchensis 



BB. Calyx segments dark purple. 

 C. Stamens 2-3 times as long as the calyx segments; filaments wide. C. 



S. menziesii 



CC. Stamens hardly if at all longer than the calyx segments; filaments filiform. 



C. S. microcephala 



AA. Leaflets pectinate-pinnatifid. E. S. annua 



GEUM (AVENS) 



Perennial. Leaves mostly basal ; basal leaves lyrate or pinnate ; stem 

 leaves lobed or compound ; stipules adnate. Flowers solitary or in corymbs. 

 Calyx deeply 5-cleft. Stamens many. Receptacle dry, conic or clavate. 

 Pistils many. (Gk. geyo = to taste well ; some have edible roots.) 



