SALTBU81I FAMILY 429 



Leaves alternate, sometimes the lowest opposite, but never united at base. 

 Calyx not horizontally winged, leaves plane (except no. 9). 

 Flowers perfect, all of one kind. 

 Calyx 3 to 5-parted or -toothed. 



Stamen 1; flowers axillary and solitary 2. Apiianisma. 



Stamens 5 (or 4) ; flowers in clusters. 



Calyx with a fleshy disk at base, the ovary partly sunk in it. . . 



.'i. Beta. 

 Calyx without disk. 



Calyx 5 (or 4)-partc'd, lierbaeeous or fleshy in fruit 



4. ClIF.NOPOWUM. 



Calyx saccate, 3 to 5-toothed, dry in fruit. . .5. RouBiEVA. 



Calyx of 1 sepal"; stamen 1 fi. MONOLEPIS. 



Flowers unisexual, of 2 kinds, the staniinate with calyx, the pistillate with- 

 out calyx anil enclosed by 2 appressed bracts. 

 Fruits not hairy; leaves not rcvolute. 



Bracts distinct or more or loss united, the margins never wliolly 

 united, at least jiartly free, the sides smooth or muricate. . . 



7. Atriplex. 

 Bracts wholly united into an orbicular strongly flattened sac with 



a pin-hole orifice at apex 8. Grayia. 



Fruits densely white-hairy; leaves linear, revolute 9. Euroti.i. 



Calyx in fruit surrounded by a 5-lobed wing 10. Kochia. 



Stems with the leaves reduced to nu're scales ; flowers perfect ; stems fleshy, jointed. 



Shrubs ; scales alternate 11. Spirostachys. 



Herbs ; scales opposite 12. Salicornia. 



Embryo spirally coiled, the endosperm lateral or none. 

 Leaves more or less fleshy, soft. 



Flowers unisexual, the staniinate in .a catkin-like s]iike, tlie pistillate axilhiry 



13. Sarcob.\tu.s. 



Flowers perfect and pistillate, in axillary clusters 14. Suaed.\. 



Leaves dry, rigid or spiny ; flowers perfect 15. Sal.sol.\. 



1. NITROPHILA Wats. 



A low peronnial g:labrons herb with fleshy opposite amplexicaiil leaves and 

 axillary perfect flowers. Sepals 5 (rarel.y fi or 7), ehartaceoiis, imbricated; 

 concave and carinate. Stamens 5, united at base into a narrow yi>llowisli 

 disk. Style longer than the subglobose ovary; stigmas 2. Acheue beaked 

 by the persistent style, included within the connivent sepals. — One species. 

 (Greek nitron, carbonate of soda, and pliilos, fond of, these plants loving 

 alkaline soils.) 



1. N. occidentalis Wats. Stems decumbent, ojipositely branching, 4 to 

 14 inches long, from a deep-seated thick taproot; leaves linear, sessile, i/L' t*! 

 1 inch long, the floral mostly 3 to 6 lines long, triangitlar in cro-ss-seetion, 

 nuieronate; flowers solitary in the axils and bibracteate, or often 2 or 3 with 

 the central one frequently bractless and the lateral shortly pedieelled ; sepals 

 pinkish or whitish. 



^foist alkaline soils, often on the black alkali; Sacramento Valley south 

 through Die San Joaquin Valley to Scuithern and Lower California; desert 

 side of the Si(>rra Nevada. Nevada; Oregon. 



Locs. — Shasta Valley, Butler 1S49; Solano Co., San .Toaquin Co., Jep.toi} ; Goshen, K. Brande- 

 fjce, Jcpson 2652; Antelope Valley, Davi/ 2249; San Bernardino, Pari.ih ; Studebaker, Los 

 Angeles Co., Branninn 339; Owens Lake, Jepson .'5097; Lassen Co., Davy 3326. 



Refs. — Nitropuu.a occidentalis Wats. Bot. King, 297 (1871), the type spnis. from tlie 

 Pacific Coast. Banalia occidentidis Moq. DC. I'rodr. 13=: 279 (1849), tvpe from Orrgon, 

 Nuttid}. 



2. APHANISMA Nutt. 



Annual with alternate sessile en1ir(> leaves. Flowers minute, perfect, with- 

 out bracts, axillary, solitary. Calyx 3 or 4-cleft, without appendages. Stamen 

 1. Ovary depressed, the short style 2 or 3-cleft. Achene depressed-globose, 

 indurated, somewhat 5-angled, subtended at base by tlie closely appressed 



