624 RUBIACE^E. 



simple stern bearing 2 - 3-ternately finely dissected leaves, and a small leafy- 

 bracted compound umbel of white flowers. 



E. bulbosa, Nutt. Base of Lookout Mountain, Tennessee, and north- 

 ward. April. 



ORDER CAPKIFOLIACE^E. 

 VIBURNUM, L. 



V. densiflorum. Stem slender, branching ; leaves small, downy be- 

 neath, varying from oblong to broadly ovate, entire, irregularly serrate or 

 slightly 2 - 3-lobed, acute at each end, or rounded at the base ; cymes downy, 

 small, compact, the base and ramifications involucrate with a whorl of linear 

 bracts. (V. involucratum, Chapm., not of Wall.) Wooded hillsides, West 

 Florida. April. Stems 2 - 4 high. Leaves 1' - 2' long. 



V. nudum, L., var. angustifolium, Torr. & Gray. Smoother; leaves 

 thinner and narrower, obscurely serrulate or entire. Margins of swamps, 

 Florida to North Carolina. 



Var. serotinum, Ravenel. Smooth, or nearly so, punctate ; leaves 

 oblong-ovate, attenuate above the middle, crenate-serrate, abruptly short- 

 petioled ; cyme long-peduncled, mostly leafy and corymbose, the divisions 

 very slender, flowers very small, the filaments slightly exserted. Low pine 

 barrens near Darien, Georgia. October and November. 



ORDER RUBIACE^E. 



GALIUM, L. 



G. Aparine, L. (CLEAVERS.) Annual ; stems weak, retrorsely hispid ; 

 leaves 6-8 in a whorl, lanceolate, hispid on the margins and midrib ; pedun- 

 cles long, 1-2-flowered; fruit bristly. Waste places, sparingly introduced. 



G. pilosum, var. puncticulosum, Gray. (G. puncticulosum, Michx.) 

 Stem, leaves, &c. smooth or nearly so ; fruit often much larger. Dry, rich 

 soil, Florida, and northward. 



G. Virgatum, Nutt. Low (6' -10' high), simple or branching at the 

 base, smooth or hispid ; leaves 4 in a whorl, short (4" or 5"), oblong-lanceo- 

 late, hispid-ciliate ; peduncles axillary, short, bracteolate, 1-flowered; fruit 

 hispid. Barrens of Tennessee (Dr. Gattinger), and westward. 



RICHARDSONIA, Kunth. FALSE IPECAC. 



Calyx 4 - 7-parted, the lobes deciduous. Corolla funnel-shaped, 3 - 6-lobed. 

 Stamens 3-6, exserted. Style 3- or 4-cleft. Capsule separating into 2-4 

 one-seeded indehiscent nutlets. Hairy branching herbs. Leaves united by 

 bristly stipules. Flowers white, in terminal sessile clusters. 



R. scabra, St. Hilaire. Annual, hirsute, forking ; leaves ovate, acute, 

 the two upper pairs involucre-like ; calyx-lobes subulate ; nutlets 2-3, 

 oblong. Alabama, Georgia, and Florida. Introduced. 



