1082 CONVOLVULACEAE 
exceeding the calyx. [B. Pickeringii A. Gray]—Pinelands, in acid soil, 
various provinces, Fla. to Tex., Ia., and N. J. 
3. EVOLVULUS L. Erect or diffuse herbs or partially woody plants. 
Leaf-blades entire. Flowers solitary and axillary or in terminal racemes Or 
panieles. Calyx small: lobes nearly equal. Corolla white, pink, or blue, rotate 
or rotate-fu b ne limb 5-angled or 5-lobed. Capsule subglobose, 2—4- 
valved.—About 85 species, in warm and tropical regions. 
Peduncles as long as the leaves or longer 
Leaf-blades glabrous or nearly so at maturity. 1. E. glaber 
Leaf-blades copiously pubescent. 2. E. Lisinotdes: 
Peduncles wanting or very seg Dedicets Shorter than the leaves. 
Plant more or less pubescent. 
Leaf-blades an Dore 3. E. sericeus. 
Leaf-blades oun AT on both sides. 4. E. Wrightii. 
Plant glabrous 5. E. macilentus. 
1. E. glaber Spreng. Stem and branches diffuse, prostrate, sometimes bend 
me silky: iind blades an oval, or obovate, mostly 1-1. 5 em. aa mucro 
glabro at calyx-lo obes d 
oblong, "oblong: ao Ur es ovate, 
qng, acute or r sli ghtly acuminate: Y 
sorolla ‘blue e, pink, or white, about 1 D ES 
Ps ad: capsule ovoid, 2.5-3.5 mm. in diam-{ z 
[E. m mucronatus (Chapm. Fl., Fl. SE. 
U. S. )]—Hammoeks and n sandy places, 
lower Florida Keys.—(W. I., S. A.) 
E. als palate = Stem and branches 
diffuse or prostrate, 1-6 dm. long, slender 
leaf-blades rn pm to oblong- lanceolate, 
-2 m 
lo cute h, p - 
nently pubescent: calyx-lobes lanceolate, 2.5— 
5 , acute: corolla blue or pen 
8-1 oad: eapsu s n in dia 
eter. LE. pose teus (Ch Pl.) | Hammocks, lower Florida Keys; also 
coast of Ala., perhaps introduced. — (W I.) 
3. E. sericeus Sw. Plants silky, the branches E or decumbent, 1-3- 
dm. long: ue -blades linear to oblong, 1-2.5 e es ong, aeute at both ends: 
ealyx-lobes 4 F mm. long, acute or acu ium: orola white or blue, 8—10 
mm. wide.—Low grounds d wet woods, various priino Fla. to Tex., Ariz., 
and Ga.— (W. T. Mez., C. A., S. A.) 
4. E. Wrightii House. Stem and branches tufted, mostly less than 1 dm. 
long, villous-hirsute with en hairs: leaf-blades suborbicular to ovate, 3-8 
ong, acute or abruptly ay calyx- linear-lanceolate, 4-5 mm. 
lon ng, acuminate: corolla blue or b 9 mm. broad.—Pin elands and open 
sandy places, lower Florida Keys Mr 
. E. maci ilentus Small. Stem and branches wiry- i glabrous, rap 
leaf-blades lin to linear-subulate, rum 2 em. long, nate, glabrous: 
calyx-lobes epum ap dA 4—5 mm. long, acuminate: "corolla pale- n or 
white, nearly 1 em. broad: put. subglobose, 3-4 mm. in diameter.—Pine- 
lands, lower Florida Keys. 
4. OPERCULINA S. Manso. Twining vines. ‘Leaf-blades entire, pal, 
mately lobed, or divided. Calyx large, pear-shaped, eonstrieted above in' 
flower: lobes closely imbricate, membranaceous or ehartaceous. Corolla cam- 
io 
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