Family Key 13 
II. Ovary superior; leaves often not agreeing with the above. 
J. Leaves lanceolate, 7.5—-15 cm. long; corolla purple, 10—13 mm. long, 
tubular or funnelform. Eriodictyon in HYDROPHYLLACEAE (p. 316) 
JJ. Leaves either not lanceolate or else smaller; corolla not as above in all 
points. ERICACEAE (p. 294) 
GROUP 8—Shrubs with alternate simple deciduous leaves and without spines or 
prickles on the branches 
A. Leaves pinnately or palmately 3—9-parted or -divided; leaf-segments subulate or 
linear, sharp-pointed, 8—20 mm. long. POLEMONIACEAE (p. 311) 
AA. Leaves not as above in all points. 
B. Staminate and sometimes also the pistillate flowers in aments. 
C. Ovary superior; pistillate flowers also in aments; flowers monoicous or dioicous. 
D. Calyx none; bracts thin in fruit; seed not winged. 
E. Bracts scaly; fruit a 1-seeded nutlet, wax-coated or drupe-like; seed not 
hairy; winter buds with many scales. MyRICACEAE (p. 122) 
EE. Bracts herbaceous; fruit a many-seeded capsule, neither wax-coated 
nor drupe-like; seed hairy; winter buds with only | scale. 
SALICACEAE (p. 117) 
DD. Calyx present; bracts thick in fruit; seed a winged nutlet. 
BETULACEAE (p. 122) 
CC. Ovary inferior; pistillate flowers few or solitary, not in aments; flowers monoi- 
cous. 
F. Nut in a spineless and either foliaceous or tubular involucre; anther-cells 
separate; leaves velvety to the touch. Corylus in BETULACEAE (p. 122) 
FF. Nut either in a spiny or in a cup-like involucre; anthers 2-celled; leaves 
not velvety to the touch. FAGACEAE (p. 124) 
BB. Flowers in heads. COMPOSITACEAE (p. 372) 
BBB. _ Flowers neither in aments nor in heads, though sometimes in dense spikes. 
G. Leaves palmately veined or 3-veined from the base. 
H. Leaves more or less lobed. 
I. Pistils more than |; fruit either dry or else an aggregate composed of 
the ripened ovaries. ROSACEAE (p. 206) 
II. Pistil only 1; fruit a berry composed of the single ripened ovary. 
GROSSULARIACEAE (p. 204) 
HH. Leaves not at all lobed. 
J. Leaves somewhat falcate, very unequal at base, sharply serrate, acute or 
acuminate. ULMACEAE (p. 126) 
JJ. Leaves not falcate, equal at base, often with margin and apex not as 
above. RHAMNACEAE (p. 250) 
GG. Leaves |-veined, or pinnately veined with only | chief vein from the base. 
K. Petals none; leaves entire. 
L. Stipules present; plant not mealy; sepals petal-like or scarious or scale- 
like. POLYGONACEAE (p. 130) 
LL. Stipules none; young parts of the plant often mealy; sepals herbaceous. 
CHENOPODIACEAE (p. 140) 
KK. Petals present; leaves entire or not. 
M. Ovary superior. 
N. Petals distinct to base. 
O. Stamens many, 25 or more; pistils often more than |. 
P. Fruit 1 or more dry pods or akenes. ROSACEAE (p. 206) 
PP. Fruit 1—5 fleshy drupes. AMYGDALACEAE (p. 223) 
