644 AMARANTACE^E. 



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

 orsmoothish; 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 ( Gray}. Near the coast, Virginia to 

 Florida (Gray). 



OKDER OLEACE^E. 



FORESTIERA, Poir. 



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

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



OKDER ARISTOLOCHIACE.E. 



ARISTOLOCHIA, 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). 



ORDER NYCTAGINACE^E. 

 OXYBAPHUS, Vahl. 



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

 short-petioled (!' 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 AMAKANTACE^E. 



ACNIDA, Mitchel. 



A. Floridana, 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- 



