THE DICOTYLEDONS 579 
UnorFIcIAL DruG PART UsEp BoTANICAL ORIGIN HABITAT 
Cornus Bark of root Cornus florida Eastern United States 
and Canada 
SUB-CLASS—SYMPETALA (GAMOPETALZ OR METACHLAMYDEZ) 
A division of dicotyledonous plants in which the flowers 
possess both calyx and corolla, the latter with petals more or less 
united into one piece. 
ORDER ERICALES 
EricAcE# OR HEATH Famity.—Sub-herbaceous, as Pipsis-. 
sewa (Chimaphila), suffruticose, as the Heather (Calluna), 
eeeeen = — - “sy 
t ‘ 
Fic. 436. 
Fic. 436.—Wintergreen (Gaultheria procumbens), an aromatic, evergreen, peren- 
nial with ovate leaves, nodding, white, urn-shaped, axillary flowers and red, berry- 
like fruits, each of the latter representing a 5-celled capsule enveloped by a fleshy 
calyx. Native to sandy soils in cool, damp woods of Eastern North America. 
(Reproduced from U. S. Dept. Agric. Miscellaneous Publication 77.) 
Fic. 437.—Pipsissewa (Chimaphila umbellata) on left. The two plants on right 
are Chimaphila maculata, the spotted pipsissewa”’ or “‘spotted wintergreen.” (Repro- 
duced from U. S. Dept. Agric. Misc. Publ. 77.) 
fruticose (Azaleas, Mountain Laurel, etc.), rarely sub-arborescent 
(Arbutus unedo or Strawberry Tree) plants. Roots fibrous, often 
Saprophytically associated, rarely tuberous or more or less 
enlarged. Stem upright, ascending or creeping, more or less 
