374 



LEOUMIN'OSAE 



Sandy flats. 4000 to 8000 foot : dosort valleys and canons on tho cast side of the 

 Sierra Nevada from ^lono Co. to Modoc Co. East and north throuji^h the Great 

 Basin to Utah, Montana and British Columhia. Jnly-Ang:. 



Locs. — Mono Lake, Brewer 1831; Lundy, Mono Co., Maud Minihorn; Truckec, Sonne; Mil- 

 ford, Lassen Co., T. Branch gee ; Goose Lake, Modoc Co., Austin <f- Bruce 2213. 



Refs. — ASTKAOALVS MORTONii Nutt. Jour. Acad. Pliila. 7:19 (1834), type loc. headwaters 

 of the Missouri River, Wi/eth; Jepson, Man. 575 (1025). Phaca mortonii Piper, Contrib. U. S. 

 Nat. Herb. 11:372 (1906). A. canadensis var. mortonii Wats. Bot. King 68 (1871). Traga- 

 cantha viortonii Ktze, Rev. Gen. PI. 2:946 (1891). A. torreyi Rydb. N. Am. Fl. 24:448 (1929), 

 type loc. Empire City, Nev., Torrcy; a sjTionym as evidenced by type spm. (N. Y. Bot. Gard.). 



58. A. minthorniae Jepson comb. n. Gold Loco. Plants 6 to 12 inches high, 

 the erect or ascending stems from a stout root-crown, or the stems very short and 

 the leaves and peduncles tufted on them; herb- 

 age white-strigose; leaves ascending, 2 to 4 inches 

 long; leaflets 13 to 19, oval to obovate, 2 to 6 lines 

 long; racemes rather loose, many-flowered, 2 to 

 5 inches long; peduncles 1% to 314 inches long; 

 flowers slender, 6 to 7 lines long; calj^x more or 

 less black-hairy (in flower, conspicuously so), 

 the tube ly? to 2 lines long, the lanceolate teeth 

 V3 to Vo as long; corolla white, the keel purple- 

 tipped; banner reflexed, exceeding the wings 

 and keel; pods erect or ascending, oblong, ab- 

 ruptly acute at base and apex, nearly cylin- 

 dric or slightly compressed, straight or nearly 

 straight, white-shaggy, 6 to 10 lines long, 3 lines 

 wide, nearly 2-celled by a yellow septum formed 

 by the intrusion of the dorsal suture. 



Gravelly slopes, 4000 to 5000 feet: eastern 

 Mohave Desert. East to Avestern Nevada. May. 



Locs. — Barnwell, New York Mts., T. 4- E. Brande- 

 gee. Nev.: Gold Mt., Purpus 5939. 



Refs. — Astragalus minthorniae Jepson. Hamosa 

 viinthorniae Rydb. Bull. Torr. Club 54:15 (1927), type 

 loc. Pioche, Lincoln Co., Nev., Maud Mintliorn 11. 



Fig. 214. Astragalus andersonh 

 Gray, a, fl. branch, X V2 ; i, A-, ^ 

 IV2 ; c, pod, X 2; d, cross sect, of pod, 

 X 2. 



59. A. malacus Gray. Tuft Loco. Plants 

 erect, % to 1 foot high, the stems and basal 

 leaves forming a dense tuft on the branched 



root-crown; herbage villous with spreading hairs; leaves 214 to 3% inches long; 

 leaflets 11 to 17, obovate, obtuse or truncatish, 4 to 9 lines long; peduncles surpass- 

 ing the cauline leaves; spikes closely many-flowered, % to iy2 (or 3) inches long, 

 elongating in fruit; flowers 7 to 10 lines long; calyx dark-hairy, the slender teeth 

 much shorter than the cylindric tube; corolla deep purple; pods rigid, linear- 

 oblong, curved, shallowly grooved dorsally, incompletely 2-celled, 1 inch long, 2^4 

 to 21/2 lines wide, shaggy-villous, widely spreading on recurved pedicels; seeds 

 many. 



Plains, valleys and montane flats, 4000 to 7100 feet : east of the Sierra Nevada 

 from Inyo Co. to Modoc Co. North to eastern Oregon, east to western Nevada. May. 



Locs. — Owens Valley (Bot. Cal. 1:151) ; Honey Lake, T. Brandegee ; Madeline Plains, C. C. 

 Bruce 2214; Fitzhugh Creek, Warner Mts., L. S. Smith 1084. Nevada: Summit sta., w. Mineral 

 Co., ShocMey 353; Eeno, T. Brandegee ; Truckee Pass, Hillman. 



Refs. — Astragalus malacus Gray, Proc. Am. Acad. 7:336 (1868), type loc. Carson City, 

 Nev., Anderson; Jepson, Man. 574 (1925). Tragacantha malaca Ktze. Eev. Gen. PI. 2:946 

 (1891). Hamosa malaca Rydb. Fl. Rocky Mts. 496 (1917). 



