EPILOBIACEAE | 947 
Flowers axillary: stem and branches decumbent or prostrate. I. Hum 
Flowers in a terminal bracted spike. II. erence LEAR: 
I. HUMIFUSAE 
Corolla less than 5 cm, wide. 
Leaf- eee i eee or sinuate: capsule densely pubescent. 
capsule with appressed silky pubescence: 
Sane ‘appearing grayish. 1. R. humifusa. 
uL and capsule with loose, spreading pubescence: 
nt appearing green 2. R. mollissima. 
Leaftindes mostly pinnatifid : capsule not densely pubes- 
cent. 3. R. laciniata. _ 
>orolla over 6 cm. wide. 4. R. Drummondii. 
II. HETEROPHYLLAE | 
Plant relatively slender: blades of the lower leaves slender- 
petioled, pinnatifid, those : io un ones sessile or nearly 
SO, entire or obscurely toothed : ules in a virgate spike. 5. R. Curtissii. 
1. R. d y Rose. Stem branched below, the branches spread- 
ing or dec . long, A Passé leaves various, the basal with 
9 dm 
s ae 2 iani blades 
line with n E Es B n. acu re 
Ser PR repand or toothed blades, 2-3. 
em. g: flowers axillary: hypanthium 2 
em. long: sepals about 1% as long as the 
panthium: eorolla 2-3 road: eapsule 
pom PA 2-3 em. long, somewhat 
to Miss. and N. J.—(JF. I.)—All year S. 
R. mollissima (L.) Sprague ee Riley. 
or ovate-elliptie to la 
uide most -5 long, acute or 
acuminate, entire or shallowly pos ie 
ers axillary: hypanthium 2.5-3 c long: corolla 1 d 3—4 em. broad: 
ds e cylindric, 2—2.5 em. Du copiou sly pubesce eed fully 2 mm. long, 
ee smooth — Fields, roadsides and waste-places, nee Plain, Fla. to Tex. 
nd Ga. Nat. of S. A.— —Spr.—fall. 
R. eres (Hill.) Rose. Stem decumbent or ascending, often branched, 
1-5 dm. tall, glabrous or sparingly hirsute: leaf-blades oval, lanceolate, Aus I 2 
or oblanceolate to spatulate at the base of the plant, 2.5-5 cm. lon 
ind at a a sinuate-dentate or often a und flowers Pub ae 
oe ong: sepals pudo corolla 12-36 mm. broad: capsule ae 
o 9 em. long, more or less palaces d see 1.2-1.5 mm. lon 
poni pitted. [Oenothera sinuata L ]—Sandy woods, plains, fields, and road: 
sides, various provinces, Fla. to Tex., S. D., and Vt.—(W. I., Mex 2.)—Bpr.- 
gs hg ioris s (Hook.) Rose. Stem branched, the branches decumbent, 
ong, pubescen pui dip o -silky hai irs: leaves various; blades 
aer to laneeolate, or s e or obovate towards the ends of the 
branches, 1—4 em. long, en tire “distantly t oothed: flowers axillary: hypanthium 
st em. 
ire n em. broad: capsule cylindric, 2.5—4 em. long, spreading, curved up- 
eed nearly 1.5 mm. long, pitted——Sand-dunes, pinelands, and roadsides, 
Coastal. Plain, Fla. to Tex. and N. C. Native only in Tex.—All year S. 
5. R. Curtissii Rose. Stem slender, 1 m. tall or less, sparingly gears 
pubescent: leaf- iis ana to almost linear and entire or obscurely 
