Rosaceae IAS) 
covered with long hairs. (Gk. dasys=shaggy, phoros—bearing; from the densely villous 
akenes.) W.C.E. (D. fruticosa tenuifolia; Potentilla fruticosa.) 
D. fruticosa Rydb. 
DRYMOCALLIS 
Herbs, perennial. Leaves pinnate, glandular. Flowers in cymes. Calyx saucer- 
shaped or hemispheric; segments 5. Petals obovate to orbicular, not clawed, not emar- 
ginate, yellow or white. Stamens 20-30, in 5 clusters. Receptacle hemispheric. 
Pistils many; style nearly basal. (Gk. drymos—a brush-wood, kallos—=beauty; from 
their growth in open woods.) 
A. Styles fusiform, less than twice as long as the ovaries. 
B. Calyx-segments lanceolate to ovate, acute, rarely acuminate. 
C. Petals white or cream-colored, often turning more yellowish in drying. 
D. Alpine; stems 2—5 dm. high; petals 1/3 longer than the calyx-segments. E. 
D. pseudorupestris Rydb. 
DD. Not alpine; stems 3—10 dm. high; petals very little longer than the 
calyx-segments. E. (D. convallaria.) 
LD. corymbosa Rydb. 
CC. Petals yellow during flowering. 
Petals much longer than the calyx-segments. 
F. Bractlets lanceolate to linear; calyx-segments lanceolate or ovate-lance- 
olate. 
G. Plant slightly if at all viscid; stem-leaves reduced; inflorescence rew- 
flowered; bractlets usually less than 14 as long as the calyx-segments. 
H. Herbage densely hairy. U. (Potentilla ciliata. ) 
DB. ashlandica Rydb. 
HH. Herbage nearly glabrous. E. 
D. glabrata Rydb. 
GG. Plant conspicuously viscid; stem-leaves “hardly reduced;  inflores- 
cence many-flowered; bractlets much more than 1/7 as long as the calyx- 
segments. W.C. E. (Potentilla fissa for our region; Potentilla glu- 
linosa.) D. valida Pip. 
FF.  Bractlets elliptic or ovate; calyx-segments broadly ovate. E. (D. 
viscosa. ) D. pumila Rydb. 
EE. Petals slightly if at all longer than the calyx-segments. W. C. E. (D. 
glandulosa incisa; Potentilla glandulosa; Potentilla reflexa for our region.) 
D. glandulosa Rydb. 
BB. Calyx-segments oval to broadly ovate, rarely lanceolate, rounded and mucro- 
nate at apex. W.C. E. (Potentilla wrangelliana.) 
D. wrangelliana Rydb. 
AA. Styles filiform or nearly so, more than twice as long as the ovaries. C. E. (Po- 
tentilla rhomboidea.) D. rhomboidea, Rydb. 
ALCHEMILLA LADY’S MANTLE 
Herbs, low. Leaves palmately-lobed or -compound; stipules adnate. Flowers 
small, in axillary clusters. Calyx-tube obconic, contracted at the throat; calyx-segments 
4—5. Petals none (ours). Stamens 1—4. Pistils 1—4; style attached near base 
of ovary. (Alkemelyeh is the Arabic name.) W.C. E. (A. arvensis occidentalis.) 
A. arvensis Scop. 
4a 
