BUCKWHEAT FAMILY. 



569 



(Fig. 1358.) 



oblong. Style 3-partcd, the stigmas 2-cleft at the summit; ovary imperfectly a-cellcd. ovule 

 solitary, pendulous. Achene 3-angled. Seed irregularly 6-groove<l. the e:i <mc of 



its angles. [Name in honor of M. T. Brunnich, Norwegian naturalist.] 



Two known species, the following of southeastern North :- ,,thrt .,f tr..j,icml Africa 



i. Brunnichia cirrhosa Banks. Brunnkhia. 



lininiiichia cirrhosa Banks; Gaertn. Fr & Scm i 



213. pi. 45- f- 2. 1788. 

 Rajania orata Walt. Fl. Car. 247. 1788. 



Stem 6-20 long, somewhat woody, rather 

 tough, slender, grooved. Tendrils numerous, fili- 

 form; leaves ovate or ovate-lanceolate, acute or 

 acuminate at the apex, truncate or subcordate at 

 the base, i'-6' long, petioled, slightly pubescent 

 beneath; ocreae obsolete or represented by a ring 

 of short bristles; racemes 2'-6' long; flowers in 

 fascicles of from 2-5; calyx campanulate, 3 // -4 // 

 long, greenish, 5-parted, its base strongly winged 

 along one side; stamens exserted; achene oblong- 

 ovoid, 3 // long, brown, smooth, closely invested 

 by the persistent and coriaceous calyx which be- 

 comes i' or more in length. 



On banks of streams, southern Illinois to Arkan- 

 sas, east to South Carolina and Florida. May-June. 

 Fruit mature in August. 



Family 15. CHENOPODIACEAE Duniort. Anal. Fain. 15. 1829. 



GOOSEKOOT FAMILY. 



Annual or perennial herbs, rarely shrubs, with angled striate or terete ^t 

 Leaves alternate or sometimes opposite, exstipulate, simple, entire, toothed or 

 lobed, mostly petioled (in Salicornia reduced to mere ridges). Flowers perfect, 

 pistillate, polygamous, monoecious or dioecious, small, green or greenish, regu- 

 lar or slightly irregular, variously clustered, commonly in panicled .spikes, bract- 

 less or bracteolate, occasionally solitary in the axils. Petals none. Calyx per- 

 sistent, 2-5 -lobed, 2-5-parted or rarely reduced to a single sepal, wanting in the 

 pistillate flowers of some genera. Stamens as many as the lobes or divisions ..t 

 the calyx, or fewer, and opposite them; filaments slender; anthers 2 -eel led. lon- 

 gitudinally dehiscent. Disk usually none. Ovary mostly superior and free 

 from the calyx, i-celled; ovule solitary, amphitropous; >iyk> 1-3: stigmas capi- 

 tate, or 2-3-lobed or divided. Fruit a utricle, with a thin or coriaceous peri- 

 carp. Seed vertical or horizontal; endosperm mealy, fleshy or wanting; embryo 

 partly or completely annular or conduplicate, or spirally coiled. 



About 75 genera and 550 species, of wide geographical distribution. 



X- Embryo annular or conduplicate, not spirally coiled; endosperm copious (except in Salifomia). 

 Leafy herbs; endosperm copious. 



Fruit enclosed by or not longer than the calyx or bractlets. 



Flowers perfect or some of them pistillate; calyx herbaceous or fleshy. 

 Calyx 2-5-lobed or 2-5-parted; stamens 1-5. 



Fruiting calyx wingless, its segments often keeled. 



Calyx herbaceous or but slightly fleshy in fruit; flowers in pani. 



Fruiting calyx dry, strongly reticulated; leaves piniiatiful. 



Calyx very fleshy and bright red in fruit; flowers ilt ti-ely c.ipit.tti 



Fruiting calyx horizontally winged. 

 Calyx of i sepal; stamen i. 

 Flowers monoecious or dioecious; calyx of pistillate flowers none; 



bractlets. 



Bractlets flat or convex, not silky. 

 Bractlets silky-pubescent, conduplicate 

 Flowers perfect; calyx membranous; leaves filiform-linear. 

 Fruit much exserted beyond the calyx. 

 Leafless fleshy herbs with opposite branches; endosperm none. 



X- & Embryo spirally coiled ; endosperm little or none. 

 Shrub; flowers monoecious, not bracteolate. 

 Herbs; flowers perfect, bracteolate. 



Fruiting calyx wingless; leaves fleshy, not spiny. 



Fruiting calyx bordered by a thin horizontal wing; leaves very spiny. 



: 



II. Sarcobaltts. 



Sal sola. 



