3132 CONVOLVULACE^;. (CONVOLVULUS FAMILY.) 



partly exserted ; capsule globose, thin, yellowish, indehisceut. Fields and 

 sterile soil, 011 small herbs. June - July. 



2. C. umbellata, HBK. Stems low, capillary, spreading ; cymes loosely 

 umbellate, few-flowered ; flowers small; lobes of the calyx acute, of the corolla 

 narrowly lanceolate, longer than the tube, spreading ; scales oval, incurved ; 

 capsule depressed, circumscissile, covered by the corolla. South Florida 

 ( Garber), on low herbs. 



3. C. decora, Choisy, var. pulcherrima, Engelm. Stem branch- 

 ing ; flowers rather large, 5-parted, in smooth umbel-like cymes ; lobes of the 

 calyx ovate-lanceolate, acute ; lobes of the corolla ovate, acuminate, crenulate, 

 1-uerved, spreading, as long as the tube ; scales ovate, incurved, as long as the 

 tube. Damp soil, Florida, and westward. May. 



4. C. inflexa, Engelm. Flowers in umbellate cymes ; sepals acute, 

 keeled ; corolla fleshy, cylindrical, mostly 4-cleft, the ovate acute lobes as long 

 as the tube ; scales minute, slightly toothed ; capsule depressed, enclosed or 

 crowned with the withered corolla. Georgia, and northward, mostly on 



shrubs. 



*- *- Lobes of the corolla obtuse. 



5. C. Obtusiflora, HBK., var. glandulosa, Engelm. Stems widely 

 spreading, bright orange; flowers short-pedicelled, glandular; lobes of the 

 calyx and corolla obtuse ; scales incurved, deeply fringed ; capsule large, 

 depressed; styles short and thick. Georgia, Florida, and westward, on 

 Polygouum. 



6. C. Gronovii, Willd. Stem climbing high ; flowers mostly 5-cleft, in 

 loose paniculate cymes; lobes of the corolla ovate, obtuse, spreading, mostly 

 shorter than the tube ; scales large, confluent at the base ; capsule globose, 

 brown. Low shady places, on coarse herbs, Florida, and northward. Au- 

 gust - Oct. 



7. C. rostrata, Shuttl. Stem twining high; flowers large, 5-parted. in 

 umbel-like cymes ; lobes of the calyx ovate, obtuse ; lobes of the corolla ovate, 

 obtuse, spreading and at length reflexed, half as long as the tube; scales con- 

 nate at the base ; capsule large, acute. Shaded moist places on tall herbs, 

 on the mountains of North Carolina, and northward. 



# * Flowers sessile, in compact clusters : calyx of 5 separate sepals, surrounded 

 by several similar bracts: corolla persistent at the apex of the capsule. 



8. C. COmpacta, Juss. Stems climbing high; bracts and sepals orbicu- 

 lar, concave, denticulate, imbricated ; tube of the corolla equalling or longer 

 than the calyx, the oblong obtuse lobes spreading; scales confluent at the 

 base; capsule globose-ovate. Damp shady places, Florida, and northward. 

 July - Oct. Clusters often continuous, and spirally coiled around herbs and 

 shrubs. 



9. C. glomerata, Choisy. Stems coarse, the dense clusters of flowers 

 forming rope-like masses ; bracts and sepals recurved-spreading ; lobes of the 

 corolla oblong, obtuse, much shorter than the tube ; styles longer than the 

 ovary. Tennessee, and westward, mostly on tall Composite. 



