CHENOPODIACEAE (GOOSEFOOT FAMILY) 169 



4-parted. Stamens with slender exserted filaments. Styles 2, somewhat 

 hairy, exserted. Pericarp conical, of obcompressed united densely-hairy 

 2-horned bracts. 



1. Eurotia lanata (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: 

 calyx-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 FAT or WHITE SAGE, and valued as forage. 



12. SARCOBATUS Nees. GREASEWOOD 



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 solitary, axillary; the perianth ad- 

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

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

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

 terminated by two thick exserted unequal stigmas. 



1. Sarcobatus venniculatus (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 an introduced saline annual, with fleshy sessile subcylindrical leaves 

 and sessile solitary 2-bracted perfect flowers. Calyx 5-sepaled, becoming 

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

 flattened utricle enveloping the horizontal seed. 



1. Salsola pestifer A. Xels. Bushy-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 Forskal. 



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, or 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 (\Vats.) A. Nels. Erect with ascending branches, 3-6 dm. 

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



