42 



COXVOLVULACEAE. 



Vol. III. 



filiform; anthers ovate or oblong. Ovary entire, 2-celled; style 2-divided to the base, or 

 near it, each division deeply 2-cleft; stigmas linear-filiform. Capsule 2-celled, globose to 

 ovoid, 2-4-valved, 1-4-seeded. Seeds glabrous. [Latin, unrolling.]. 



About 85 species, natives of warm and tropical regions. Besides the following, some 7 others 

 occur in the southern United States. Type species: Evoivulus nummular ius L. 



i. Evoivulus pilosus Nutt. Evoivulus. 

 Fig. 342/. 



Evoivulus argcntens Pursh, Fl. Am. Sept. 1S7. 1814. 

 Not R. Br. 1810. 



Evoivulus pilosus Nutt. Gen. 1: 174. 1818. 



Perennial, densely silky-pubescent or villous ; 

 stems ascending or erect, 3'-c/ high, very leafy. 

 Leaves sessile, oblong, lanceolate or spatulate, 3"-q" 

 long, I "-3" wide, acute or obtuse at the apex, nar- 

 rowed at the base ; flowers solitary and nearly ses- 

 sile in the axils ; peduncles 2-bracted at the base, 

 recurved in fruit. l"-2" long; sepals lanceolate, 

 acute or acuminate; corolla funnelform-campanu- 

 late, purple or blue, 3"-6" broad; capsule li"-2" in 

 diameter, about as long as the sepals. 



On dry plains. North Dakota to Missouri, Nebraska, 

 Mexico and Arizona. May-July. 



3. QUAMOCLIT [Tourn.] Moench, Meth. 453. 1794. 



Twining herbaceous vines, with petioled entire lobed or pinnately parted leaves, and 

 cymose racemose or solitary peduncled axillary flowers. Sepals 5, herbaceous, equal, acumi- 

 nate, mucronate or appendaged. Corolla salverform (usually scarlet in the following species), 

 the tube narrow, somewhat dilated above, mostly longer than the spreading 5-lobed limb. 

 Stamens and simple style more or less exserted ; stigma capitate ; ovary 2-celled or falsely 

 4-ceIIed, 4-ovuled. Fruit usually 4-celled and 4-seeded. [Greek, dwarf kidney-bean.] 



About 10 species, of warm and tropical regions, only the following in North America. Type 

 species : Ipomoea coccinea L. 



Leaves pinnately parted into very narrow segments. 1. Q. Quamoclit. 



Leaves cordate, acuminate, entire or angulate-lobed. 2. Q. coccinea. 



i. Quamoclit Quamoclit (L.) Britton. Cypress Vine. Indian Pink 



Ipomoca Quamoclit L. Sp. PI. 159. 1753. 

 Q. vulgaris Choisv in DC. Prodr. 9: 336. 1845. 

 Q. Quamoclit Britton, in Britt. & Brown, 111. Fl. 3 : 

 22. 1898. 



Annual, glabrous : stem slender, twining to a 

 height of io -2o. Leaves ovate in outline, pe- 

 tioled or nearly sessile, 2-7' long, pinnately parted 

 nearly to the midvein into narrowdy linear entire 

 segments less than 1" wide: peduncles slender, 

 commonly much longer than the leaves, r-6-flow- 

 ered ; pedicels 1' long or more, thickening in 

 fruit : sepals oblong, obtuse, usually mucronulate, 

 2"-3" long; corolla scarlet, rarely white, salver- 

 form, i'-ii' long, the tube expanded above, the 

 limb nearly flat, the lobes ovate, acutish : stamens 

 and style exserted; ovary 4-celled : ovule 1 in each 

 cell : capsule ovoid, 4-valved, about 5" high, twice 

 as long as the sepals. 



^ In waste and cultivated ground, Virginia to Florida, 

 Kansas and Texas. Sparingly escaped from gardens' 

 farther north. Naturalized from tropical America. 

 July-Oct. American red bell-flower. Sweet-william- 

 of-the-Barbadoes. Cupid's-flower. Red jasmine. 



