CHENOPODIACEAE (gOOSEFOOT FAMILY) 169 



4-iparted. Stamens with slender exserted filaments. Stjrles 2, somewhat 

 hauy, exserted. Pericarp conical, of obcompressed umted densely-ha,iry 

 2-horned bracts. 



1. Eurotialanata(Pursh)Moq. Enum.Chenop.81. 1840. White-tomentose 

 throughout with stellate hairs (often turning reddish-brown), at least _the 

 base shrubby: leaves linear to narrowly lanceolate, with revolute margins: 

 caljrx-lobes hairy: fruiting bracts lanceolate, nearly covered by 4 dense spread- 

 ing tufts of long silvery-white hairs. — New Mexico to Oregon and Manitoba; 

 known as Winter Fax or White Sage, and valued as forage. 



12. SARCOBATUS Nees. Gbeasewood 



A subspinescent rigidly branched shrub with alternate linear fleshy leaves, 

 and bractless monoecious or dioecious flowers. Staminate flowers without 

 calyx, in close terminal spikes; stamens 2-5, irregularly arranged under a 

 stipitate peltate scale. Pistillate flowers soUtary, axillary; the perianth ad- 

 herent at the contracted somewhat 2-lipped apex to the base of the stigmas, 

 laterally margined by a narrow erect sUghtly 2-lobed border, which at length 

 becomes a broad circular horizontal membranous veined wmg; style lateral, 

 terminated by two thick exserted unequal stigmas. 



1. Sarcobatus veimiculatus (Hook.) Torr. Emory's Rep. 150. 1848. Gla^. 

 brous or slightly pubescent on young branches, with smooth white bark, 

 5-25 dm. high: leaves pale green, somewhat 3-angled, 2-5 cm. long: fruiting 

 calyx coriaceous, about 5 mm. long, the winged margin 7-12 mm. broad. 

 — Moist saline flats; throughout our range and west to Nevada. 



13. SALSOLA L. 



Ours a,n introduced saline annual, with fleshy sessile subcylindrical leaves 

 and sessile soUtary 2-bra(;t,ed p.erfect flowers. Calyx 5-sepaled, becoming 

 horizontally 5-winged, inclosing the fruit. Stamens 5.' Stigmas 2. Fruit a 

 flattened utricle enveloping the horizontal seed. 



1. Salsola pestifer A. Nels. Bvishy-branched, at first soft and succulent, in 

 age rigid, often 1 m. broad and high: leaves and outer branches bright red at " 

 maturity; the linear leaves becoming rigid and prickle-tipped: calyx membra- 

 nous, conspicuously veiny on the wings. (S. Tragus of Am. authors, not S. 

 Tragus L.) — The now widely distributed Russian Thistle. 



14. SUAEDA Porskal. 



Annuals or frutescent perennials with subterete fleshy leaves and axillary 

 clustered or solitary flowers. Flowers perfect or polygamous, minutely bracte- 

 olate. Calyx 5-cleft, its lobes unappendaged or more or less strongly keeled 

 or crested, ot at length somewhat winged. Stamens 5. Seed compressed, 

 the testa shining, black and crustaceous. 



Wholly herbaceous. 



Erect annuals; calyx cleft to below the middle. 



Calyx lobes unappendaged 1. S. diffusa. 



Calyx lobes carinate-crested . . , 2. S. erecta. 



Decumbent perennial [sometimes annual (?)] 3. S. depressa. 



Woody-based perennial 4. S. Moquinii. 



1. Suaeda diffusa Wats. Proc. Am. Acad. 9: 88. 1874. Smooth or more or 

 less pubescent, green or often purple, erect, diffusely branching, 3-5 dm. high: 

 leaves subterete, 1-4 cm. long; the floral ones similar but shorter, usually 

 rather distant on the branchlets: clusters 2-4-flowered: calyx cleft below the 

 middle, fleshy but not carinate. — From the upper Missouri to Mexico. 



2. Suaeda erecta (Wats.) A. Nels. Erect with ascending branches, 3-6 dm. 

 high: leaves smooth, linear, broadest at base, 1-3 cm. long; the floral shorter, 



