1K3 



mofp, 4-10 mm. lonu, narmwly olliptlcul, obtuse. AusCm, Novada. 



Astragalus atratus var, Owyheensis (Nelson). A. Owyheensis 

 Nelson Bot. Gaz. 55 375 (1913). Pods papery, shaped altout as in ihe 

 type, broadly linear, acuminate, nearly straiKbt, ab<»ut -1 nun. wide. 

 3 mm. high and 1.5-2 cm. lonjr, somewhat dorsally flattened and shal- 

 low-sulcate below, on a slender stipe varyinj; up to the leuf^tli of calyx 

 tn^e from very .«.hort, on a twisted <*apillary pitlicel often .1 cm. long, 

 in very lax and elongated racemes on almost capillary peduncles often 

 '2° long. Dorsal suture a mere ridge within, cross section about reni- 

 form. pod pendent, a little inflated, splitting to the middh" along the 

 dorsal suture and to the base of the venn-al and valves twisting', about 

 smooth and mottled, with sutures rather prominent but not much 

 pedicels 4-6 mm. fcng, ascending. Baimer nearly rent'onh, about 5 mm. 

 thickened. Flowers dull greenish-white, about 1 cm. long, on capillary 

 long, thick, with sides a little i-eflexed above, abruptly arched to 100° 

 at end of cal.vx tube, deeply notched. Wings as long as banner and 

 much enlarged above but not notched or lobed to .speak of. Very obtuse 

 and rounded and wide. Keel purple-tijiiied, wide, the blade about half 

 as hmg as wings, acute but not prudacvd. -Calyx campanulate, rounded 

 at base, equally inserted, about 4 mm. long, with triangular teeth ab(mt 

 1 mm. long or a little more. Bracts minute, ovate, hardly 1 mm. long. 

 Peduncles .suliscaiiil'orm the proper stems in mg only a few inches long 

 and very many fr(«m a slender and rather woody root which is much 

 branche<l at tip as are the stems. Stipules hyaline, not connate, adnate, 

 small. Normal leaves about 1 dm. long, the low^er ones shorter, with 

 tapering rachis and 3-5 pairs of distant leaflets which appear linear 

 but are folded mostly and narrowly oblong and "apiculate and about 1 

 cm. long, tlie uppermo.st one not jointed to rachis, but not elongated. 

 Pubescence of fine hairs fixed by the base. The tufts lie flat on the 

 ground and &traggb> along in the grass of the meadows forming loose 

 mats 'Often 3 feet in diameter in the most favorable places. First 

 collected by me at Weiser, Idaho in 1900, then at Contact, Nevada in 

 1901 and in Oregon at Baker City in 1902. Because of its peculiar, pod 

 I was holding it to detenuine its true place in the genus when Nelson 

 published it in 191.3. 



Astragalus atratus var. mensanus .Tones Cont. 7 GG5 (1895). Pods 

 narrowly oblong, about 2 cm. long and 3 mm. high, much laterally flat- 

 tened, not sulcate dorsally, abruptly apiculate. Dorsal suture only a 

 little intruded. Lower leaflets elliptical, upper linear.' Darwin Me«sa 

 Inyo Co. California, Coville. 



139. Astragalus Ibapensis Jones Cont. 3 290 (1893). Atelopi-ragma 

 Rydberg. Pods aboat 12 nun. long and 3 mm. wide and high, round in 

 cross section, abruptly apiculate, broadly linear, a trifle wider above, 

 apparently with dorsal suture a little intruded, but not sulcate. Flowers 

 About as in A. atratus, the wings rather fanshaped and about as long 

 as banner and a little longer than keel which is straight along the base 

 and then abruptly arched to 45°, rarely 90° and triangular acuto and. 

 purple-tipped and about 3-4 nmi. long. Calyx tube campanulate and 

 equally inserted, 2 mm. l"ng, ascending, the deltoid teeth hardly half as 

 long, ashy. Slender pi dieels about 3 mm. long and much longer than 

 tlie minute ovate bract, rioral rachis not over 1 cm. lone:, zigzag, \\i'^h 

 2-3 bracts. Peduncles about 3 cm. long, axill.ary in the 3-5 upper nodes. 

 Leaves 3-4 cm. long, with petiole 1-2 cm. long and not tapering. Leaf- 

 lets 1-5 linear-elliptical, the lateral ones 1 cm. or le.ss long, obtuse, flat 

 thin , petiolulate and jointed, to rachis, the terminal one twice as long 

 and not jointed to rachis, all the upper leaves reduced to the single 

 terrrjinal leaflets which ^,e 2-3 cm. long and linear-acuminate, or with 

 a minute side leaflet at the base. Stems almost filiform, about a fo'i 

 long, simple, several from the crown of an erect and fleshy root. AH 

 but the lowest internodes 2-3 cm. long. Deep Creek (Ibapah) Utah on 

 sagebru.sh plains. Lower Temperate life zone. No. 1084 Gooding from 



