Rydberg : Rocky Mountain flora 425 



cinereous-strigose or more glabrate beneath ; peduncles about i 

 dm. long; raceme 4-10 cm. or in fruit even 2 dm. long; bracts 

 ovate to lanceolate, scarious ; calyx cinereous-strigose ; tube nearly 

 3 mm. long ; teeth lance-subulate, 5 mm. long, attenuate ; corolla 

 rose-purple; banner 15-18 mm. long; keel 18—20 mm.; loments 

 minutely strigose ; internodes 2-5, 6-8 mm. long, 5-6 mm. wide; 

 nodes narrow, 2.5 mm. or less. 



This is related to the subarctic H. Mackenzii, from which it 

 differs in the denser pubescence on its calyx, its broader calyx-teeth, 

 its fewer and larger internodes of the loment, its taller habit, 

 broader bracts and lighter and redder flowers. It grows on hill- 

 sides at an altitude of 1400— 2000 m. 



Utah: Vicinity of Salt Lake City, 1883, Z^'cJ/zcr/v/ 55 (type) ; 

 1900, Stokes; 1869, Watso)i 2g^ ; near Ogden, Coulter; Stans- 

 hury ; Wahsatch Mountains, 1888, Dr. Ecclcs. 



Lathyrus brachycalyx sp. nov. 



Perennial with a creeping rootstock ; stem simple or slightly 

 branched, 1.5—3 ^"''- liigh> usually finely pubescent, sharply 4- 

 angled ; stipules semi-sagittate, 5-10 mm. long, 1.5-3 "'"^''- wide, 

 pubescent ; rachis 2-5 cm. long, somewhat winged ; leaflets 2—5 

 pairs, linear-oblong or oblanceolate, firm, strongly veined, finely 

 pubescent, acute at both ends, 1-3 cm. long, 2-8 mm. wide; ten- 

 drils of the lower leaves reduced to mere tips, those of the upper 

 leaves better developed, but usually simple ; peduncles 5—10 cm. 

 long ; raceme short, 2-6-flowered ; calyx puberulent ; tube 4-5 

 mm. long; upper teeth broadly triangular, scarcely 2 mm. long, the 

 rest lance-subulate, the lowest one 3 mm., rarely 4 mm. long ; 

 corolla purple, 2—2.5 c"^- ^o^g ! legume glabrous, 3-4 cm. long, 7 

 mm. wide. 



This species has been confused with L. dccapctaliis and is 

 closely related to it. It differs in the much shorter calyx-tube 

 and calyx-teeth, the broader, more upturned banner, the more 

 pubescent foliage and less well developed tendrils. It grows 

 on hillsides and in cafions and washes at an altitude of 1400- 

 2500 m. 



Utah: City Creek Canon, 1883, F. E. Leonard loi (type), 

 20 and 2^ ; 1900, S. G. Stokes ; 1880, M. E. Jones ijoo ; near 

 Salt Lake City, 1904, Garrett gg8 ; 1905, Rydberg 6162 ; Mt. 

 Majestic, Garrett 16^6; Mount Nebo, 1902, Goodding iroj ; 

 Wahsatch Mountains, 1869, ^. ]]uitsou 2gj. 



