172 ni'HiACK.K. (maddku 1 avii.y.) 



nonth ; rymos rather sliort-pcduiulcil, 5-ray«'(l ; fruit ovoid, blue. — Swamps, 

 common. April and May. — Shrub 8° - 12° high. 



6. V. dentatum, L. Veins of the leaves beneath with tufted iiairs in 

 their axils, otherwise smooth ; leaves round-ovate, slightly cordate, coarsely ser- 

 rate, acute, plicate by tlic strong impressed veins ; cymes loiig-peduncled, 7- 

 rayed ; calyx smooth, with the lf)bes obtuse ; fruit small, roundish, deep blue. — 

 Rich damp soil, West Florida to Mississi])pi, and northward. March -May. — 

 A large shrub. 



7. V. SCabrellum, Torr. & Gray. Hairy throughout, and the leaves be- 

 neath stcllatc-tomentose ; leaves ovate or roundish, often cordate, or rarely cunc- 

 atc at the base, rather obtusely and coarsely serrate, short-petioled ; calyx-lobes 

 hairy, acute ; corolla hairy ; cymes 7-rayed ; fruit roundish, deep blue. — Swamps 

 or rocky hills, Florida to South Cai-olina, in the lower districts, and westward. 

 May and June. — Shrub 8° - 12° high. Leaves thick, I' -2' long, or sometimes 

 twice that size. 



8. V. pubescens, Pursh. Leaves small, ovate or ob!ong-ovate, coarsely 

 serrate, hairy above, tomcntose beneath, on very short ])etioles or the uppermost 

 subsessilc ; cymes small, smoothish, 7-raycd ; fruit oblong, black. — Mountains 

 of North Carolina. June. — A shrub 2° -3° high. Leaves l'-2' long. 



* * Marc/inal Jlow&s radiant and sterile. 



9. V. lantanoides, Michx. Stem smooth and straggling ; branches, 

 cymes, and lower surface of the round-ovate, cordate, serrate leaves covered 

 with tufted down ; cymes sessile ; fruit ovoid, black. — Deep shades on the 

 niountaim of North Carolina. June. — Stem 2° -4° long. Leaves 4'-C' long. 

 Sterile flowers 1' in diameter. 



Ordek 70. RUBIACE^. (Maddku Family.) 



Herbs, shrubs, or tiTcs. Leaves entire, opposite and united by inter- 

 posed stipules, or whorled. — Calyx-tube adherent to the ovary, or (in 

 Loganiese) free ; the limb 4 - G-toothed or lobed, or obsolete. Corolla 

 4 -6-lobed, inserted on the throat of the calyx. Stamens 4 - G, inserted 

 on the tube of the corolla, and alternate with its lobes. Ovary 2-10- 

 celled, with 1 - several anatropous or amphitropous ovules in each cell. 

 Style mostly solitary. Albumen hard or fleshy. 



Synopsis. 



SuBORDKR L COFFEE.E. Ovules and seed solitary in the cells 

 (except No. 7). Calyx-tube adherent to the ovary. 



§ 1. Leaves whorled. Stipules none. 



1. GALIUM. CorcUa rotate, yalvate in the bud. Fruit 2-ceIled. Herbs. 



5 2. Leaves opposite, rarely three in a whorl, with stipules interposed. 

 • * Herbs. Mature fruit dry. Flowers axillary, single or clustered. 



2. SPERMACOCE. Carpels 2, one of them closed by the partition, the other open. Flowers 



clustered. 



