THE DICOTYLEDONS 591 
a solitary flower. Flowers pentamerous; sepals five, green, 
gamosepalous; corolla varying in shape from rotate to funnel-like 
with expanded: mouth, in color from greenish-yellow to white or 
through yellowish-pink to scarlet, crimson, purple or blue; 
stamens five, often with the bases of the filaments expanded; 
pistil bicarpellate; ovary two celled, superior, often surrounded 
by a nectar girdle; style filiform with bilobed or bifid stigma. 
Fruit usually a capsule (Exogonium, Convolvulus, etc.), dehiscing 
septifragally, rarely a berry. Seeds scantily albuminous to 
exalbuminous. 
OrriciAL DruG PART UsED BOTANICAL ORIGIN HABITAT 
Jalapa Tuberous root Exogonium Jalapa Mexico 
Ipomoea Root Ipomoea orizabensis Mexico 
UnorriciAL Druc 
Tampico Jalap Root Tpomeéa simulans Mexico 
Wild Jalap Root Ipomoea pandurata United States 
Turpeth Root Root : Operculina Turpethum East Indies 
Scammoniz Radix Root Convolvulus Asia Minor, 
Scammonia Greece, Syria 
HyDROPHYLLACEAE OR WATER LEAF Famity.—Annual, her- 
baceous, rarely perennial woody plants whose stems, branches, 
leaves and sepals are often viscous and glandular hairy. Leaves 
alternate, exstipulate, from simple, linear to pinnatipartite to 
pinnate. Inflorescence rarely expanded, usually scorpioid 
cymes. Flowers small to large, funnel-form in Yerba Santa 
(Eriodictyon californicum); sepals five, green; petals five, regular; 
corolla varying from small stellate with slightly fused petals to 
large rotate, campanulate or tubular, in color varying from 
-greenish-white or yellow to rarely white, often pink, purple or 
blue; stamens five, rarely with alternate staminodes; _pistil 
bicarpellate. Fruit a two-celled capsule. dehiscing usually 
septicidally. 
OrrFiciAL DruG PArT UsEeD BoTANICAL ORIGIN HapsiTAT 
Eriodictyon Leaves » Eriodictyon California and New 
: californicum Mexico 
BoRAGINACE& OR BoraGE Famity.—Herbaceous (Boraginee 
sub-family) or shrubby (Heliotropee sub-family) plants, forming a 
primary root and a single or often branched shoots. Leaves 
often divisible into expanded, sometimes large basal and alter- 
