Bulletin - United States National Museum - Smithsonian Institution

FLORA OF WASHINGTON AND VICINITY. 103
OROBANCHACEiB.
Broom-rape Family.
Orobanche minor, L. Lesser Broom-rape.
Last of May or first of June.
t Aphyllon uniflorum, Gray. One-flowered Broom-rape.
Eare. End of May.
tConopholis Americana, Wallroth. Squaw-root. Cancer-root.
Last half of May.
tEpiphegus Virginiana, Bart. Beecii-drops.
Thickened base of the stem forming a large scaly corm, whicli when freshly cut
open has the odor of potatoes. September.
LENTIBULACEiB.
Bladderwort Family.
f Utricularia vulgaris, L. Greater Bladderwort.
Virginia, below Custis Spring (Dr. Foreman.)
t Utricularia gibba, L,
Flats above Eads' Mill. September.
BIGNONIACEiE.
BiGNONiA Family.
tTecoma radicans, Juss. Trumpet-flower.
Last of June or in July.
t Catalpa Mgnonioidea, Walt. Indian Bean.
Probably not indigenous. Middle of June.
ACANTHACE^.
Acanthus Family.
Ruellia ciliosa, Pursh. IDipteracanthus ciliostis, 'Nees.'\ Ruel. Long-tubed Ruellia.
Dry ground. First half of July.
Ruellia ciliosa, Pursh, var. ambigua, Gray.
In damp ground. Middle of July.
t Ruellia strepens, L. \_Dipteracanthits strejjenSj'Nees.'] Short-tubed Ruellia.
Flats above the Outlet Lock. First half of June. A month earlier than the last.
tDianthera Americana, L. Water-Willow.
June.
tPhryma Leptostachya, L. Lopseed.
July.
VERBENACEiE.
Vervain Family.