A. NU'JTALLl. 325 



(UC); Mancos, southern Colorado, Baker, Earle, and Tracy 420 (Gr, UC); near Farming- 

 ton, San Juan County, New Mexico, Slandley 7066 (US, type of A. neo-mexicana Stand- 

 ley, minor variation 10); 5 and 8 km. south of Shiprock Station, San Juan County, New 

 Mexico, Hall 1114S, 11144 (CI, UC); dry hills near Shiprock, New Mexico, Slandley 

 7278 (US); type collection, 2,140 m. altitude, June 10, 1894, Jones BUS (R, NY, UC); 

 same locality and date, Jones 6445r (US); just south of Green River Station, Utah, 

 abundant. Hall 11036 (UC). 



Fig. 45. 

 Leaves of Atriptex nuttaUi: a, b, subspecies cuTieata from 

 Shiprock, New Mexico (686245 US); e, d, eubspecies buxi- 

 folia from Sheep Creek, Wyoming (393362 US). All X 1. 



38e. Atriplex nuttalli buxifolia (Rydberg). — Stems erect or ascending from a 

 decumbent, very woody base; leaves elliptic, obtuse, 2 cm. or less long, 0.5 to 0.8 cm. wide, 

 abruptly narrowed to an obtuse sessile base; fruiting bracts ovate or globoid in outline, 

 sessile or nearly so, 4 to 5 mm. long, irregularly toothed at summit, the sides with con- 

 spicuous crest-like appendages which are more or less flattened or these appendages 

 wanting (fig. 45, c, d). (A. buxifolia Rydberg, Bull. Torr. Club 39: 311, 1912.) Dry 

 plains of eastern Wyoming. Type locality, Dayton, Sheridan County, Wyoming. Col- 

 lections: Type collection, 1,220 m. altitude, September, 1899, Tweedy 2456 (NY); Sheep 

 Creek, Wyoming, August 21, 1899, Schuchert (US). 



38/. Atriplex nuttalli falcata (Jones).— Stems erect or ascending from a decum- 

 bent base, the woody portion very short; leaves linear-spat ulate or rarely oblong-spatu- 

 late, commonly more or less falcate, 2 to 4 cm. long, 0.2 to 0.7 cm. wide, tapering to a 

 short petiole; fruiting bracts lanceolate or narrowly ovate in vertical section, forming an 

 approximately fusiform fruit, sometimes long-stalked but often sessile (even in the type 

 specimen), 4 to 6 mm. long exclusive of stalk (only 3 or 4 mm. broad), the free tips con- 

 spicuously elongated and beak-like (2 or 3 mm. long), the sides with few to numerous con- 

 spicuous sharp appendages, these slightly or not at all flattened, or the sides sometimes 

 smooth (in A. n. anomala Jones, minor variation 11). (A. nuttalli var. falcata Jones, 

 Contr. West. Bot. 11 : 19, 1903.) Northern part of the Great Basin; western Montana to 

 northern Utah (according to Jones), Nevada, northeastern California, eastern Washing- 

 ton, and Idaho. Type locality, Weiser, Idaho. Collections: Horse Valley, southwestern 

 Montana, Hall 11603, 11561 (UC); Dolly Varden Smelter, eastern Nevada, July 24, 

 1891, Jones (Herb. Jones, type of A. nuttalli anornala Jones, minor variation 11); Battle 

 Mountain, Elko County, Nevada, Kennedy 3074 (US); Winnemucca Lake, Nevada, 

 Kennedy 1974 (US, young and doubUul); 16 to 24 km. west of Amedee, Lassen County, 

 California, June 24, 1897, Jones (Herb. Jones); dry hillsides near Willow Creek Valley, 

 Lassen County, California, Dairy 3402 (UC); near Beattys, Butte County, Oregon, 

 Leiberg 2611 (US); dry ground at the Narrows, Harney County, Oregon, Peck 1677 (Gr); 

 Powder River Valley, eastern Oregon, Cusick 1928 (Gr, US) ; near Egbert Springs, Doug- 

 las County, Washington, Sandberg and Leiberg 349 (Gr, NY, UC, US); type collection, 

 July 7, 1899, Jones (Herb. Jones) ; Antelope Valley, Idaho, Henderson 3635 (US) ; Twin 

 Falls and Shoshone Falls, Idaho, Nelson and Macbride 1351 (NY, UC, US) ; Pocatello, 

 Idaho, Palmer 407 (Gr, US); Leadore, Lemhi Valley, eastern Idaho, Hall 11506 (UC). 



