BUCKWHEAT FAMILY. 569 
oblong. Style 3-parted, the stigmas 2-cleft at the summit; ovary imperfectly 2-celled; ovule 
solitary, pendulous. Achene 3-angled. Seed irregularly 6-grooved, the embryo in one of 
its angles. [Name in honor of M. T. Brunnich, Norwegian naturalist. ] 
Two known species, the following of southeastern North America, the other of tropical Africa. 
1. Brunnichia cirrhoésa Banks. Brunnichia. (Fig. 1358.) 
Brunnichia cirrhosa Banks; Gaertn. Fr. & Sem. I: 
213. pl. 45. f.2. 1788. 
Rajanta ovata 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, 1/-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 Dumort. Anal. Fam. 15. 1829. 
GOOSEFOOT FAMILY. 
Annual or perennial herbs, rarely shrubs, with angled striate or terete stems. 
Leaves alternate or sometimes opposite, exstipulate, simple, entire, toothed or 
lobed, mostly petioled (in Sa/zcornia 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 of 
the calyx, or fewer, and opposite them; filaments slender; anthers 2-celled, lon- 
gitudinally dehiscent. Disk usually none. Ovary mostly superior and free 
from the calyx, 1-celled; ovule solitary, amphitropous; styles 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. 
% Embryo annular or conduplicate, not spirally coiled; endosperm copious (except in Sa/icornia). 
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 I-5s. 
Fruiting calyx wingless, its segments often keeled. 
Calyx herbaceous or but slightly fleshy in fruit; flowers in panicled spikes. 
1. Chenopodium. 
Fruiting calyx dry, strongly reticulated; leaves pinnatifid. 2. Roubieva. 
Calyx very fleshy and bright red in fruit; flowers densely capitate. 
3. Blitum, 
Fruiting calyx horizontally winged. 4. Cycloloma, 
Calyx of 1 sepal; stamen 1. 5. Monolepis. 
Flowers monoecious or dioecious; calyx of pistillate flowers none; fruit enclosed by 2 
bractlets. 
Bractlets flat or convex, not silky. 6. Atriplex. 
Bractlets silky-pubescent, conduplicate. 7. Eurotia, 
Flowers perfect; calyx membranous; leaves filiform-linear. 8. Kochia. 
Fruit much exserted beyond the calyx. 9. Corispermum. 
Leafless fleshy herbs with opposite branches; endosperm none. 10. Salicornia. 
% % Embryo spirally coiled; endosperm little or none. 
Shrub; flowers monoecious, not bracteolate. 11. Sarcobalus. 
Herbs; flowers perfect, bracteolate. 
Fruiting calyx wingless; leaves fleshy, not spiny. 12. Dondia. 
Fruiting calyx bordered by a thin horizontal wing; leaves very spiny. 13. Salsola, 
