OF ARTS AND SCIENCES. 123 



1. C. HTSSOPiFOHUM, Lmn. More or less floccose- or villous-pubes- 

 cent, erect, h-l^ feet high, diffusely brauched ; leaves f-li inches long, 

 1-2 lines wide, cuspidate, the floral bracts reduced more or less 

 abruptly from linear-lanceolate to ovate, acute or acuminate, membra- 

 nously margined ; sepals rarely wanting ; shorter stamens more or less 

 perfectly developed; fruit 1^—2 lines long, narrowly winged, obtuse, 

 often mucronate with the projecting styles. — From the Arctic Ocean 

 to the Great Lakes and the Missouri River, to New Mexico, Chi- 

 huahua, and the Columbia. Quite variable, but none of the differences 

 seem specific. 



Corispermum hi/ssopifoUum, Linn. Pall. Fl. Ross. 2. 112, t. 98. Pursh, Flora, 4. 



James, Catalogue, 172. Hook. Fl. Bor.-Am. 2. 125. Torrey, Sitgreave's 



Eep. 170; Pac II. R. Rep. 4. 130; Bot. Mex. Bound. 184; Ives's Rep. 25. 



Seemann, Bot. Herald, 53. Engelm. PI. Upp. Miss. 206. Hook. Pi. 



Geyer in Lond. Jour. Bot 5. 261. Hook, f., PI. Arc. 300. Bourgeau, 



Palliser's Rep. 260. Rothrock, Fl. Alaska, 455. Watson, King's Rep. 



5. 293. Gray, Manual, 409. Torr. Bot. Wilkes's Exp. 438. 

 Corispermum hyssopifoUum, var. Americanum. Nuttall, Genera, 1. 4. Torrey, 



Ann. N.Y. Lyc.2. 240. 

 Corispermum Americanum. Nuttall, Fl. Arkansas, 165. 



Collectors: — Drummond ; Wilkes; Wright; Parry; H. Engehnann; Bour- 

 geau ; Hall ; Clinton ; Lapham ; Scamnion ; 998 Watson ; Vasey ; 

 37 Wolf. 



Var. MiCROCARPUM. Spikes slender, elongated ; fruit a line long. — 

 New Mexico. 



Collectors: — 711 Fendler; 580, 1170 Wright; Palmer. 



16. SALICORNIA, Tourn. 



Flowers mostly perfect, deeply immersed by threes in the rachis of a 

 jointed spike, decussately opposite in the axils of cupshaped bracts, the 

 lateral ones of each cluster lower and often staminate. Calyx a fleshy 

 rhomboidal sac with thickened margin, and an anterior opening, en- 

 closing the flower and fruit, adherent by a narrow line to the rachis, 

 and becoming thickened and spongy in fruit, deciduous. Stamens 1-2, 

 with large oblong anthers on short filaments, at length exserted. Ovary 

 oblong, posterior to the axis of the flower : styles 2-3, short, free. Peri- 

 carp adherent to the seed, membranous. Seed vertical, obovate-oblong, 

 escaping through the thin base of the calyx ; albumen very small and 

 lateral ; embryo conduplicate, thick, green, the radicle inferior and pos- 

 terior. — Low mostly herbaceous fleshy leafless saline plants, with oppo- 

 sitely branched jointed stems ; spikes cylindrical. The spongy calyx is 

 composed mainly of spiral vessels. 



