044 AMARANTACEJE. 



G. suberosus, R. Hr. Leaves cordate, acuminate, minutely pubescent 

 or sniootliisii ; umbels .'i-D-flowered, niucli sliorter tlian tlie jjetiole ; corolla 

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

 minutely i)ul)escent within, but sometimes smooth, hardly double the length 

 of the calyx-lobes; crown lO-crcnate (GVay). — Near the coast, Virginia to 

 Florida ( Gray). 



Order OLEACEiii:. 



FORESTIERA, Poir. 



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

 the nut striate ; otherwise like F. liijustrina. — Florida, and westward. 



Order ARISTOLOCHIACE^. 



ARISTOLOCHIA, Tourn. 



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

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

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

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



Order NYCTAGINACE^. 



OXYBAPHUS, Vabl. 



O. nyctagineus, Sweet, stem smootliish, 4-angled, forking ; leaves 

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

 becoming large and vein}'. — West Tennessee, and westward. July and 

 August. — Stem \°-2° high. 



PISONIA, Plum. 



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

 short-petioled [V 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). 



Order AMARANTACE^. 



ACNIDA, Mitchel. 



A. Ploridana, 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- 



