Part 5, 1929] FABACEAE: GALEGEAE 303 



32. Xylophacos incurvus Rydb. Bull. Torrey Club 52: 366. 1925. 



A subacaulescent perennial, with a cespitose eaudex; stems 1-5 cm. long, densely leafy; 

 leaves 5-9 cm. long; stipules lanceolate, 4—5 mm. long, villous-canescent; leaflets 11-17, 

 oblanceolate or elliptic, acute at each end, 10-15 mm. long, 2-4 mm. wide, villous-canescent; 

 peduncles 3-5 cm. long; racemes 3-7-flowered, dense; bracts subulate, 5-10 mm. long, attenu- 

 ate; calyx white- villous, the tube about 1 cm. long, 3.5 mm. broad, the teeth subulate, 5-7 mm. 

 long ; corolla nearly 2 cm. long, white or tinged with rose-purple, the keel purple- tipped ; banner 

 obovate, retuse; wings about 2 mm. shorter, the blade oblong, acutish, shorter than the claw; 

 keel-petals still shorter and broader, the blade strongly arcuate and rounded at the apex; pod 

 densely white-villous, 2 cm. long, 1 cm. thick, and 7 mm. wide, usually sulcate on both sutures 

 except at the apex, strongly incurved almost to a semicircle; seeds obliquely reniform, brown, 

 2.5 mm. long, 2 mm. broad. 



Type locality: California. 



Distribution: Northeastern California and western Nevada. 



33. Xylophacos funereus (M. E. Jones) Rydb. Bull. Torrey Club 

 52; 367. 1925. 

 Astragalus funereus M. E. Jones, Contr. W. Bot. 12: 11. 1908. 



A perennial, with a cespitose eaudex; stems many, 3-10 cm. long, white-villous, densely 

 leaf} - ; leaves spreading, 4— S cm. long; stipules ovate, about 5 mm. long; leaflets 13-17, obovate, 

 5-10 mm. long, 4-6 mm. wide, rounded at the apex, densely white-villous on both sides; pe- 

 duncles 3-7 cm. long, arched, white-woolly; racemes short, 5— 10-flowered; bracts ovate to 

 lanceolate, 3-5 mm. long; calyx black-villous, the tube 7-8 mm. long, 4 mm. broad, the teeth 

 subulate, 4-5 mm. long; corolla bluish, 2.5-3 cm. long, the tip of the keel dark-blue; banner 

 oval-obovate, slightly arcuate; wings shorter, nearly straight, the blades lance-oblong, with a 

 large basal auricle; keel-petals as long as the wings, the blade oblanceolate, slightly falcate, 

 rounded at the apex; pod inflated, arcuate, densely white-villous, 3 cm. long or more and 1 cm. 

 wide (according to Jones "5 cm. long, 1.5 cm. wide"), obcompressed. 



Type locality: Rhyolite, Nevada. 



Distribution: Southern Nevada and southeastern California. 



Illustration: M. E. Jones, Rev. Astrag. pi. 53, f. 178. 



34. Xylophacos Blyae Rose, sp. nov. 



A perennial, with a cespitose eaudex; stems many, very short, densely covered with leaves; 

 leaves spreading, 5-8 cm. long; stipules ovate, 5 mm. long; leaflets 9-13, obovate, 8-10 mm. 

 long, densely white-villous with spreading hairs; peduncles 5-9 cm. long, densely villous; 

 racemes 5- 10-flowered, head-like; bracts lance-subulate, 5-10 mm. long; calyx villous with 

 blackish hairs, the tube 6 mm. long, the teeth subulate, 2 mm. long; corolla 12-15 mm. long; 

 banner obovate, purple-tinged and striate towards the tip; wings shorter, the blade obliquely 

 oblong, with a large basal auricle; keel-petals still shorter, the blade broadly lunate, rounded at 

 the apex, dark-purple, the claw white; pod broadly ovoid, strongly incurved, 2 cm. long, 6 mm. 

 wide, and 10 mm. thick, densely white-woolly; seeds almost black, obliquely reniform, 2 mm. 

 long, 2 mm. broad. 



Type collected at an altitude of 3500 feet on ridges one and one half mile northwest of King- 

 man, Arizona, in 1927, Mrs. Charles Bly, also in fruit, in 1925 (TJ. S. Nat. Herb.). 



35. Xylophacos nudisiliquus (A. Nelson) Rydb. Bull. Torrey Club 

 52: 368. 1925. 



Astragalus nudisiliquus A. Nelson, Bot. Gaz. 54: 410. 1912. 



A cespitose perennial, with a much branched eaudex; stems very short, less than 1.5 dm. 

 long; leaves 3-6 dm. long, spreading ; stipules lanceolate, 3-5 mm. long; leaflets 9-19, obovate, 

 more or less densely white-villous, 5-10 mm. long, rounded at the apex; peduncles 2-4 cm. long; 



