OF ARTS AND SCIENCES. 451 



hispid and somewhat pubescent: leaves sessile, oblong to oblong- 

 obovate, acute at each end or obtuse above, 4 to 12 lines long, senate, 

 appressed-hispid both sides: spikes terminal, slender, 1 to 2^ inches 

 long, the staminate dense, the pistillate rather loose ; pistillate flowers 

 1 or 2 in the axils of minute bracts, rarely perfecting fruit, the bract 

 then becoming reniform, 5-toothed, a line long; styles pectinatelj 

 divided : capsule hispid. Rio Blanco ; June. (38, staminate.) — 

 The pistillate specimen in the Cambridge set is numbered 27, which 

 is certainly a mistake. 



AcALYPHA FiLiFERA, Near A. CaroUniana ; nearly glabrous : 

 leaves cuneate at base, very finely stellate-pubescent beneath, subcili- 

 ate and the teeth setosely tipped : fruiting bracts with very long tor- 

 tuous tilifojm lobes: capsule glabrous. Barranca, in moist shady 

 places. (111.) 



AcALYPHA HYPOG^A. Annual, 2 or 3 inches high, with short 

 branches, somewhat hispid and pubescent : leaves oblong-ovate, acute, 

 rounded or subcuneate at base, sparingly appressed-hispid on both 

 sides and minutely dotted, 10 lines long or less, on a slender petiole: 

 pistillate spikes dimorphous ; the terminal sessile, 3-4-flowered, with 

 broadly cordate 9-toothed bracts (2 or 3 lines long), the smooth cap- 

 sule with short simple styles and subglobose seeds; flowers of the 

 axillary spikes minute, developing single-celled naked ovaries at the 

 apex of long (2 to 6 inches) filiform pedicels, the ovaries burying in 

 the ground and perfecting a single larger seed : staminate flowers not 

 detected. Rio Blanco, on the wet side of a canon ; September. (595.) 

 — A very curious and peculiar species. The pedicellate ovaries bear- 

 ing subterranean fruit appear to correspond to the pedicellate flower 

 with a 1-2-celled ovary which occasionally terminates the pistillate 

 spike in some other species. 



Tragia nepet^folia, Cav., var. setosa. A more than usually 

 hispid form, the teeth of the ovate to linear leaves mostly tipped with 

 1 to 3 stiff bristles. Rio Blanco, on damp hillsides; June. (65.) 



Stillingia Zelayensis, Muell. Arg. ? Rio Blanco, on river 

 banks; June. (73.) — Resembling 823 Parry & Palmer, so named, 

 but with the spike much more slender and open. It differs from the 

 description of the species in its smaller sessile capsules (5 lines long, 

 including the very thick base), and smaller seeds (2| lines long). 



Corythea * FiLiPES. A shiub, 6 feet high, with numerous slen- 



* CORYTHEA ; new genus of Euplwrbiacece, subtribe Hippmnanea;. Flowers 

 monoecious, apetalous, the small perianth of 4 to C nearly distinct valvate (?) 



