640 CONVOLVULACE^. 



confluent; peduncle sliorlcr tlian tlie petiole; cyr:ie compact; calyx-lobes 

 lanceolate-subulate ; corolla wliile. — Rich woods, Nortliurn Alabama and 

 Mississii>pi, and northward. 



H. appendiculatum, Midix. Hirsute, erect, brandling (1° iiiirli), 

 lowest leaves ])innately divided, with toothed lobes, the others painiately 

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

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

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

 May. 



Ordeu HYDROLEACE^. 

 HYDROLEA, L. 



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

 summit; leaves short (r-l|' long), ovate ; flowers 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 1' wide. 



Order POLEMONIACE^. 



PHLOX, L. 



P. Stellaria, Gray. Low (6' high), smooth, brandling; leaves linear 

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

 Near Nashville, Tennessee (Grai/). Kentucky (Short), on rocky clififs. 



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 /. commntata, which it greatly resembles. 

 — Cultivated ground, Apalachicola. Introduced. 



CONVOLVULUS, L. 



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

 or subulate, 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, 1-3-flowered ; outer sepals obovate, twice as long as the 

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

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

 15° - 20° or more long. Leaves 6" - 10" long. Corolla 9 ' long. 



