EPILOBIACEAE 951 
11. HARTMANN a Spach. Annual or perennial caulescent herbs. Leaf- 
dr l 
blades commonly piunatifid or p Buds rooping. Flowers spicate, diur- 
nal. Hypanthium E m. Peta 
species, American.—Spr.—fall.—PRIMROSES. 
1. H. speciosa (Nutt.) Small Plant 2-7 
blades of the basal leaves ob- 
line, ly 
lanceolate to spatulate in outline, lyrate- 
no ls 2-4 e g: petals 2.5—5 
m. long: capsules 1-2 cm. long. [Oenothera 
a Nutt. ]— Berit soil, fields A road- 
sides, various pro , La. to Ariz., Kans., 
and Mo.; also dierum EE from ; 
Mis SS. o FI la., I., and N. C.—(Mez.)—Spr.-fall.—Commonly grown in gardens 
Ph it escapes : 
LAVAUXIA Spach. Perennial or annual usually acaulescent herbs. 
NS bus pinnatifid. Flowers few. Petals white, pink, or pale-yellow. 
Hypanthium tubular, slender. Ovary short. 
Capsule short and stout, often winged above. 
seeds granular, few—About 6 species, 
North American e presum — Pare OSES. 
1. L. triloba (Nutt.) Spach. Perennial, 
nearly bu throughout: leaves basal: 
blades oblong-lanceolate in ee 7—30 em 
long, runcinate-pinnatifid o sinuate, some- 
times ciliate: corolla whi A or pi ink, 4—6.5 
em. broad: petals often 3-lobed: capsule 
ovoid, 20-30 mm. long, manifestly longer 
than broad, 4-winged above, reticulate- 
: tt. 
en calcareous soil, various provinces, 
Tie to Calif., Wyo., and Ky.—(Mez.) 
3. GAURA L. Annual, biennial, or sei herbs. Leaf-blades entire, 
toothed, or pinnatifid. Flowers spicate or racemose. Hypanthium narrow, 
somewhat prolonged beyond the ovary. ” Pe tals unequal, with clawed blades. 
Stamens 8, declined. Style declined. Stigma 4-lobed, surrounded by a cup- 
like border. Fruit ribbed or angled.—About 18 species, North American. 
Anthers linear to narrowly elliptie, attached near the base. I. BIENNES. 
Anthers oval, attached near the middle. - Ij. PARVIFLORAE. 
Fruit Por stipitate, sometimes with a Soie stipetike B 
Fruit 6-8 mm. long: flower: buds Tess than 2 cm, 
pum with rounded or DUE angles. 1. G. biennis. 
Fruit with sharp angle 
Fruit pubescent: flow puri pubescent. 
te simple or few ascending branches 
above: species m from South Carolina tó 
Florida and Alabama. 2. G. angustifolia. 
