ROSE FAMILY 307 
numerous (more than 10). Seed carpels one to many, distinct, 
ripening into one-seeded or several-seeded hard dry fruit. 
Shrubs 
Stamens numerous. 
Ovaries naked, 1. e., not completely surrounded by the 
calyx. 
Leaves simple, not deeply lobed . . . . Spiraea 
Leaves deeply 3-lobed (rarely 5-lobed). Flowers in 
dense spherical cluster . . . . . Physocarpus 
Leaves mostly trifoliate, rarely 5-foliate; flowers in 
loose clusters’ ‘or ‘solitary =. ... |. . . Rubus 
Ovaries enclosed in tube of calyx but free from it. 
Leaves pinnate (1. e., leaflets arranged in pairs along 
the central leaf stem except the terminal leaflet) Rosa 
Peimenay omy yt Mf) a a Sippaldra 
Herbs 
Flowers green in rather dense heads . . . . Alchemilla 
Flowers not green, not in dense heads or spikes. 
Leaves not basal, nearly orbicular, not lobed, except at 
eee Se Soe fe ee rok annie Bee) gab ara 
Leaves all at base. 
Flowers yellow 
Bracts of calyx shorter than sepals . Waldsteinia 
Bracts of calyx longer than the sepals . Duchesnea 
Flowers white, plant sending out runners . Fragaria 
Leaves along the stem as well as at base. 
Flowers arranged in a long slender spike Agrimonia 
Flowers in loose clusters or solitary. 
Petals nearly as broad as long. 
Fruit in a spongy receptacle . . Comarum 
Fruit dry. 
Carpels with tail-like appendages 
Petals not more than 5. . Geum 
Petals more than 5.. .,. . Dryas 
Carpels without tail-like appendages 
NC fees ents Potentilla 
Carpels 2-ovuled; leaves pinnate 
: : Filipendula 
