G44: AMAEANTACE^. 



G. SUberosus, R. Br. Leaves cordate, acuminate, minutely pubescent 

 or smootliisli ; umbels 3- 9-flowered, much shorter than the petiole ; corolla 

 broadly conical in the bud, twisted, the lobes triangular-lanceolate, dusky, 

 minutely pubescent within, but sometimes smooth, hardly double the length 

 of the calyx-lobes; crown 10-crenate (Graij). — Near the coast, Virginia to 

 Florida (Qray). 



Oeder OLEACE^. 



FOEESTIERA, Poir. 



F. pubescens, Nutt. Leaves pubescent ; drupe shcrt-pedicelled, with 

 the nut striate ; otherwise like F. ligustrina. — Plorida, and westward. 



Oedee ARISTOLOCHIACE^. 



AEISTOLOCHIA, Tourn. 



A. pentandra, L. Perennial, herbaceous, smoothish; stem prostrate 

 or twining (2° -3° long); leaves ovate, cordate; flowers axillary; limb of 

 the calyx lanceolate, acuminate, deep green, much longer than the 5-angled 

 tube; stamens 5. — Miami, South Florida (Garber). 



Oedee NYCTAGINACE^. 



OXYBAPHUS, Vahl. 



O. nyetagineUS, Sweet. Stem smoothish, 4-angled, forking ; leaves 

 petioled, deltoid-ovate; flowers clustered, terminal; involucre 3-5-flowered, 

 becoming large and veiny. — West Tennessee, and westward. July and 

 August. — Stem 1° - 2° high. 



PISONIA, Plum. 



P. rotuudata, Griseb. Spineless ; leaves obovate, rounded at the base, 

 short-petioled (1' long) ; cymes divaricate, sessile or short-peduncled; flowers 

 clustered ; sterile calyx 5-toothed, the fertile one clavate-oblong, obtuse- 

 angled, glandular above the middle, the glands stipitate. — Keys of South 

 Florida (Curtiss). 



Oedee AMARANTACE^. 



ACNIDA, Mitchel. 



A. Floridaua, Watson. Stem branching from the base, erect or as- 

 cending ; leaves lanceolate ; flowers in clusters along the upper part of the 

 stem, the fertile ones often in distant heads ; utricle thin, rugulose, indehis- 



