Vol. III.] 



MORNING-GLORY FAMILY 



2. Breweria aquatica (Walt.) A. Gray. 

 Water Breweria. (Fig. 2940.) 



Convolvulus aquaticus Walt. Fl. Car. 94. 1788. 

 Stylisma aquatica Chapm. Fl. S. States, 346. i860. 

 Bonamia aquatica A. Gray, Man. Ed. 5, 376. 1867. 

 Breweria aquatica A. Gray, Syn. Fl. 2: Part 1, 217. 1878. 



Finely and densely silky-tomentose, branched, the 

 branches long and slender. Leaves oblong, elliptic, or 

 oblong-lanceolate, obtuse at both ends, mucronate or 

 emarginate at the apex, sometimes subcordate at the base, 

 ^ / -i^ / long, 2 // -8 // wide; peduncles 1-3-flowered, longer 

 than the leaves, minutely bracted at the summit ; sepals 

 densely tomentose, oblong, acute or acuminate, about 2" 

 long; corolla purple or pink, 5 // -7 // long; filaments gla- 

 brous; style 2-parted nearly to the base. 



In wet soil, especially in pine barrens, Missouri to Texas, 

 east to North Carolina and Florida. May-Aug. 



3. Breweria Pickeringii (M. A. Curtis) A. Gray. Pickering's Breweria. 



(Fig. 2941.) 



Convolvulus Pickeringii M. A. Curtis, Bost. Journ. Nat. 



Hist. 1: 129. 1837. 

 Stylisma Pickeringii A. Gray, Man. Ed. 2. 335. 1856. 

 Bonamia Pickeringii A. Gray, Man. Ed. 5, 376. 1867. 

 Breweria Pickeringii A.. Gray, Syn. Fl. 2; Part 1, 217. 1878. 



Stem pubescent or puberulent, very slender, simple 

 or branched, i-2 long. Leaves puberulent or gla- 

 brous, narrowly linear, obtuse or acutish at the apex, 

 narrowed at the base, \'-2)/ 2 ' long, ^ // -2 // wide; peti- 

 oles very short; peduncles slender, about as long as 

 the leaves, with 1 or 2 linear bracts at the summit 

 which are usually longer than the pedicels and calyx; 

 sepals pubescent or hirsute, ovate to oval, obtuse, 

 about 2 // long; corolla white, about i / long; filaments 

 nearly glabrous; style 2-cleft; capsule ovoid, acute, 

 pubescent, longer than the calyx. 



In dry pine barrens, New Jersey to North Carolina; 

 Illinois to Louisiana and Texas. June-Aug. 



3. EVOLVULUS L. Sp. PI. Ed. 2, 391. 1762. 



Erect or diffuse branching, mostly silky-pubescent or pilose, annual or perennial herbs, 

 with small usually entire leaves, and solitary axillary racemose or paniculate small blue 

 pink or white flowers. Sepals nearly equal, acute or obtuse. Corolla funnelform, campan- 

 ulate or rotate, the limb plaited, 5-augled or 5-lobed. Stamens included, or exserted; fila- 

 ments 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 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. 



i. E volvulus pilosus Nutt. Evolvulus. 

 (Fig. 2942.) 



Evolvulus argenteus Pursh, Fl. Am. Sept. 187. 1814. 



Not R. Br. 18 10. 

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



Perennial, densely silky-pubescent or villous; 



stems ascending or erect, 3 '-9/ high, very leafy. 



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



9 /7 long, i // 2 > // wide, acute or obtuse at the apex, 



narrowed at the base; flowers solitary in the axils; 



peduncles 2-bracted at the base, recurved in fruit, 



l // -2 // long; sepals lanceolate, acute or acuminate; 



corolla funnelform-campanulate, purple or blue, 



3 // -6 // broad; capsule i^ // -2 // in diameter, about 



as long as the sepals. 



On dry plains, Nebraska to Mexico and Arizona. 

 May J July. 



