640 CONVOLVULACE^E. 



confluent; peduncle shorter than the petiole; cyme compact; calyx-lubes 

 lanceolate-subulate; corolla white. — Rich woods, Northern Alabama and 

 Mississippi, and northward. 



H. appendiculatum, Michz. Hirsute, erect, branching (1° high), 

 Lowest leaves pinnately divided, with toothed lobes, the others palmately 

 5-lobed; peduncles longer than the leaves, the cyme loosely flowered; calyx 

 with short reflexed appendages between the subulate lobes; corolla blue. — 

 Damp woods, mountains of North Carolina, Tennessee, and northward. 

 .May. 



Order HYDROLEACE^E. 



HYDROLEA, L. 



H. ovata, Nutt. Spiny, closely pubescent ; stem branching near the 

 summit; leaves short (l'-lj' long), ovate; (lowers crowded at the end of 

 the branches; calyx lobes lanceolate, villous, shorter than the corolla ; sta- 

 mens exserted. — Central Alabama {Prof. E. A. Smith), and westward. — 

 Stem l°-2° high. Corolla V wide. 



Order POLEMONIACE^E. 



PHLOX, L. 



P. Stellaria, Gray. Low (G' high), smooth, branching; leaves linear 

 (l'-2' long) ; lobes of the pale blue corolla wedge-shaped, deeply notched. — 

 Near Nashville, Tennessee (Gray). Kentucky (Short), on rocky cliffs. 



Order CONVOLVULACE^. 



IPOMCEA, L. 



I. trifida, Don., var. Torreyana, Gray. Perennial, smoothish; pedun- 

 cles longer than the leaves, 3 - 10-flowered ; sepals glabrous; capsules as 

 long as the calyx; otherwise like J. commutata, which it greatly resembles. 

 — Cultivated ground, Apalachicola. Introduced. 



CONVOLVULUS, L. 



Sepals, corolla, ovary, &c. of Ipoinua. Style single; stigmas 2, filiform 

 or Bubulate, or broader and flat. Capsule 2-9-valved. 



C. Havanensis, Jacq. Stems very long, woody, prostrate, canescent- 

 tomentose; leaves small, oblong, obtuse, short-petioled ; peduncles stout, 

 single or by pairs, l-3-flowered; outer sepals obovate, twice as long as the 



roundish inner - : corolla white, sharply 5-lobed ; valves of the capsule 



6-9. (C. Garberi, Chapm.) — Sandy coasl at Cape Florida ( Garber). — Stem 

 15° -20° or more long. Leaves 6"- 10" long. Corolla 'J" long. 



