Part 6, 1929] FABACEAE: GALEGEAE 321 



ing hairs; peduncles 3-5 em. long; racemes 3-5-flowered; calyx villous, the tube 4 mm. long, 

 with some black hairs, the teeth subulate, 3 mm. long, black-hairy; corolla unknown; pod 

 sessile, lunate, 15-18 mm. long, 3-4 mm. wide, acute at each end, strigose-canescent, the upper 

 suture acute, concavely curved, the lower strongly convex, usually sulcate at the middle, 

 the cross-section at the middle broadly cordate. 



Type collected in Cedar Canon, Iron County, Utah, July 19, 1920, A. 0. Garrett R2660 

 (herb. N. Y. Bot. Gard.). 



18. Batidophaca obcordata (Ell.) Rydberg. 



Astragalus obcordatus Ell. Bot. S. C. & Ga. 2: 227. 1824. 

 Astragalus FMiotlii D. Dietr. Syn. PI. 4: 1080. 1847. 

 Tragacantha obcordata Kuntze, Rev. Gen. 946. 1891. 

 Tium obcordatum Rydb.; Small, Fl. SE. U. S. 619, 1332. 1903. 



A cespitose perennial, with a taproot; stems numerous, 1-3 dm. long, decumbent or 

 prostrate, glabrous; leaves spreading, 3-12 cm. long, the rachis glabrous; stipules lanceolate, 

 2-3 mm. long; leaflets 15-27, obcordate, 2-10 mm. long, glabrous on both sides, cuneate at the 

 base; peduncles 3—7 cm. long; racemes short, 1-2 cm. long, 6— 15-flowered; bracts lanceolate, 

 1-2 mm. long, shorter than the pedicels; calyx strigulose, the tube 3 mm. long, the teeth sub- 

 equal, lanceolate, 2 mm. long; corolla white or purplish, 8-10 mm. long; banner obovate, rounded 

 or slightly notched at the apex; wings slightly shorter, arcuate, the blade longer than the claw, 

 semi-ovate, obtuse at the apex, with a large basal auricle; keel-petals about 7 mm. long, with 

 shorter claw, the blade nearly semicircular, with a broad auricle; pod leathery, lance-lunate in 

 outline, glabrous, cross-reticulate, acute at each end, 2-3 cm. long, 7-8 mm. wide, sulcate on 

 the lower suture, acute on the upper, the cross-section cordate. 



Type locality: Southern districts of Georgia, near St. Mary's. 



Distribution: Florida and Georgia. 



Illustration: M. E. Jones, Rev. Astrag. pi. 26, f. 82. 



4. Lotiflorae. Low, almost stemless, cespitose plants with perennial roots. Flowers 

 usually of two kinds, one kind borne in peduncled several-flowered racemes, fully developed, 

 but less fertile, the other kind few and subsessile in the axils of the leaves, less well developed 

 (perhaps clcistogamous) and self-fertilized. Calyx campanulate. Corolla ochroleucous, or 

 veined or tinged with purple. Pod leathery, oblong-ovoid, inflated, the upper sutures straight, 

 the lower convex. 



19. Batidophaca lotiflora (Hook.) Rydberg. 



Astragalus lotifiorus Hook. Fl. Bor. Am. 1: 152. 1831. 



Phaca lotiflora T. & G. Fl. N. Am. 1 : 349. 1838. 



Astragalus lotiflorus pedunculosus A. Gray, Proc. Am. Acad. 6: 209. 1864. 



Tragacantha lotiflora Kuntze. Rev. Gen. 946. 1891. 



Astragalus lotiflorus elatiocarpus Rvdb. Mem. N. Y. Bot. Gard. 1: 244, in part. 1900. 



Cystopora lotiflora Lunell. Am. Midi. Nat. 4: 428. 1916. 



A perennial, but apparently blooming the first season, with a deep, at first rather slender 

 taproot, in age crowned with a cespitose caudex; stems branched at the base, 2-10 cm. high, 

 densely covered with the pubescent deltoid stipules; leaves 4—10 cm. long, canescent with as- 

 cending hairs; leaflets 9-13, or on the earlier leaves fewer, silky-canescent, oblong or elliptic, 

 5-15 mm. long; flowers usually of two kinds, the earlier in short racemes on elongate peduncles, 

 the later (or in seedling plants often all) subsessile or short-peduncled in the axils; peduncles of 

 the earlier flowers 3-10 cm. long; racemes 4-1 2-flowered; calyx silky-pilose, the tube about 3 mm. 

 long, the lobes subulate, 3.5-4 mm. long; corolla ochroleucous oi sulphur-yellow, 8-9 mm. long; 

 later flowers usually setting fruit without fully opening; calyx-lobes shorter, 3 mm. long or less; 

 fruit semi-ovoid, lunate, upcurved towards the apex, acute at each end, 15-18 mm. long, 7-8 

 mm. wide, villous with short hairs, the upper suture prominent; seeds obliquely round-reni- 

 form. 



Type locality': Carlton House on the Saskatchewan. 

 Distribution: Plains, Saskatchewan to Nebraska and Colorado. 



Illustrations: M. E. Jones, Rev. Astrag. pi. 28, f. 95; Britt. & Brown, 111. Fl. /. 2137; ed. 2. 

 /. 2546. 



