TAXONOMY 
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late. Inflorescence primitively a racemose cyme condensing into a 
raceme, to a sub-capitulum and ultimately to a capitulum. Flowers 
regular, campanulate to campanulate-elongate to elongate and deeply 
cleft in petals; sepals five, only slightly synsepalous, epigynous; 
petals five, campanulate to campanulate-tubular to tubular elongate 
to tubular and deeply cleft; corolla varying in color from greenish- 
yellow to yellowish-white to white or again, from yellowish-purple 
(rarely through yellowish-pink or red) to purple to pure blue; 
stamens five, epigynous, usually free from corolla; nectary epigynous; 
pistil usually tricarpellary; ovary as many celled as number of carpels 
and with central placenta; style single elongate; stigmas as many as 
carpels. Fruit a capsule. Seeds albuminous. The plants contain 
inulin. 
LobeliacecB or Lobelia Family. — Herbs, with inulin and latex con- 
tents, corresponding with Campanulaceoe in their vegetative parts, 
but differing from that group by having irregular flowers (pale blue 
in Lobelia inflata), anthers always synantherous and pistil always 
bicarpellate with two-celled ovary and bilobed or bilabiate stigma. 
Official drug Part used Botanical origin Habitat 
Lobelia Leaves and Lobelia inflata United States and 
flowering tops Canada 
VII. Order Aggregate. — V alerianaceee or Valerian Family . — 
Herbaceous often low succulent plants with creeping rhizomes, fre- 
quently strongly scented and possessing stimulating properties. 
Leaves frequently dimorphic; radical fascicled; cauline opposite; 
petiole dilated, exstipulate. Inflorescence a raceme of dichesial or 
scorpioid cymes. Flowers more or less irregular; calyx absent as 
such but represented by a series of teeth that are incurved in the 
bud and flower and which expand later into a pappose crown and act 
in the fruit as a pappose disseminator; corolla pentamerous, gamo- 
petalous, varying from rotate synpetalous to irregular tubular with 
petals diversely united, in color varying from greenish-white to 
white or pink ( Valeriana officinalis ) to crimson; stamens three to 
two or one {Valerian), epipetalous; pistil syncarpous; ovary usually 
one-celled inferior; style filiform with three stigmatic surfaces. 
