AUernuHlhem. dlENOPODIACEvK. 



2. NITROPHILA, Watson. 



Flowers perfect, mostly 2-bracte.l. Perianth of 5 (rarely G or 7) equal erect con- 

 cave an, cannate sepals. Stan.ens as many, united at base into a very narrow peri- 

 gynous disk : anthers 2.celle.l : staminodia none. .Style short : stigmas 2, slender 

 Utricle subglobose, i.ulehisce.it, l-seeded, beaked by the persistent style, included 

 J.thm the connivent sepals. - A low perennial branching glabrous herb, with 

 Meshy opposite ainplexicaul leaves, ami axillary sessile or shortly pedicellate llowers 

 — JJut. King Exp. 21)7. Banalia § Idiopsis, Moquin, DC. Prodr. xiii^. 279. 



1 . N. occidentalis, Watson, I. c. Stems ascending or decumbent, .3 to 8 inches 

 ugh, horn a pereiinnd running rootstock, branching from the base and angular- 

 o vermost leaves broadly ovate or oblong, 2 or 3 liner long ; the rest linear, o'to 1 2 



i e lor'ortT 'T^r"'""" ""^ T^''^'"''-- '"'^''^ '^'-^'^ ^"t shorte;, mostly 

 tM,e longer than the flowers : llowers 1 to 3 in each axil ; the lateral ones frenuentlv 

 hort-ped.celled, 2-3-bracted, the central one often bra^-tless : sepals a lin in/ 



Halt a line broa.l, black and shining. ^ /ia,?fl//a occklentalis, Moquin, 1. c 



3. CLADOTHRIX, Nutt. 

 Flowers perfect, 3-bracted ; bracts concave, hyaline. Perianth of 5 erect equal 

 oblong rigid-scarious sepals, somewhat pilose with verticillately branched hairs. 

 Stamens 5, the filaments united at base into a short cup : anthers large, oblong 

 1-celled. Ovary subglobose : style short ; stigma capitate, 2-lobed. Utricle ovate- 

 globose, indehiscent, 1-sceded. — L6w annual, or erect and woody at base, densely 

 stcllate-tomentosc, with opposite small rounded entire petiolate leaves, and very 

 small llowei-s solitary or few in the axils. — Benth. & Hook. Gen. PI. iii. 37. 

 Only tlie two following species are known. 



1. C. lanuginosa, Nutt. in herb. Annual, prostrate or ascendintr, diffusely 

 branched, densely white-tomeiitose becoming glabrate ; stems often a foot or two 

 long: leaves round-obovate to rhomboidal, more or less attenuate at base 3 to 10 

 hues long, often in threes, two of them smaller : flowers mostly in pairs ; sepals less 

 than a line long, obt.isish, twice longer than the broader hairy-tipped bracts : utricle 

 glabrous, shorter than the ^v\y.i\^.— Arh>/rnn(hes lanu^finosa, Nutt. Fl. Ark IGO 

 Altenmnthera {]) lamuiinoRn, Torr. in Emory's Kop. 1.50," and Lot. Mex. Bound. 180 ' 

 Moqmn, UC. Prodr. xiii^. 359. ' 



Hanks of tlie Colorado near Cliiniiicy Poak (A'cwbrrr;/), ami eastward to .-Xrkansas and Te.vas. 



C. suFFKi'Tico.sA, IJenth. k Hook. Soniewliat woody at base, ere.-t nn.l nuioli branelu-d, I.alf 

 a loot liifrli or l.'ss : loaves lonnd.-d ,„• „vnte, truncate or usually ronml.-d at l.ase, 2 to lines lon^ 

 y(p- iihwUy \K-\\n\i'i\. — .IHamaulhcraiOsn/ruticusa, Toir. in Ijot. Ale.v. Bound. 181. VallcT 

 ol the Iho Grande, IVrUjht. ^ 



Order LXXIX. CHENOPODIACE^. 



Herbs or shrubs, often succulent or scurfy, sometimes fleshy and leafless, usually 

 with simple and alternate leaves, without stipules ; the smalland sessile commonly 

 clustered flowers either naked or with herbaceous (not scarious) bracts, a perianth 

 of .5 or fewer usually herbaceous and pei-sistent sepals, often changed in fruit 



