Micrantki. * 278 



ffexuous, with internodes nearly as long as leaves, decumbent at 

 Ease and with peduncles in the middle axils. Blooming evidently 

 in. July and fruiting in September and with peduncles in the upper 

 axils, but the type gathered in October after the tops had a second 

 :^rawth from the fall rains after fruiting. Near Chapala Jalisco 

 Hex., Oct. 5, 1903. J. N. Rose, Nat. Herb. No. 451239. 



255. Astragalus hypoxylus Watson Proc. Am. Acad. 18 192 

 (1883). Pods about 1 cm. long and 8 mm. wide and high, obliquely 

 ajid narrowly linear-oblong, with ventral suture about straight or 

 a trifle concave, shortly acuminate into a triangular beak about 2 

 aim. long which is straight with the ventral suture, inclined to be a 

 little laterally flattened, ascending, cross section cordate, rather 

 narrowly sulcate dorsally, ashy. Banner about 3-4 mm. long, 

 oval, abruptly erect at end of tube. Wings oblong, about as long 

 as banner and 2 mm. longer than keel. Keel about 2 mm. long 

 and high, erect and deltoid, acutish. Calyx tube turbinate, about 

 2 mm. long, tapering into the slender but very short pedicel, ni- 

 «:rescent, with subulate teeth as long as tube and lax. Bracts mi- 

 nute, about as long as pedic.ls. Peduncles about 5 cm. long, from 

 the lower axils, twice as long as leaves. Leaves 2-3 cm. long, all 

 short-petioled, spreading. Leaflets 4-6 pairs, oval-obovate and long- 

 petiolulate, rounded, ashy with fine and appressed hairs. Stipules 

 not connate, small, green, triangular. Stems loosely matted, a few 

 inches long, with short internodes. Huachuca Mts. Arizona, Lemmon. 

 Purpus's No. 2477 from Esperanza Puebla seems to be the same. 

 Plants referred to this from Lower California seem diff"erent. 



Astragalus Purpusi Jones might be sought here, but has a 

 atipitate nod. 



256. Astragalus Hartwegi Benth. PL Hartw. 10 (1839). Pods 

 2-3 mm. wide, about 2 mm. high, with renilorm cross section, often 

 a, little sulcate ventrally as well as dorsally, appearing as if a 

 trifle inflated, densely spicate and very closely reriexed, minutely 

 stipitate. Flowers white or purple, closely reflexed. Banner nearly 

 round, closely hugging the keel or abruptly arched to 45' beyond 

 the calyx t.ps, rather thick and with sides barely reflexed around 

 the margin, about 3 mm. long, about 1 mm. longer than wings. 

 Wings linear, a lif'tle ardhed, about 1 mm. longer than keel. Keel 

 with straight base and then abruptly erect, obtuse, the general out- 

 line falcate-obovate, about 2 mm high. Calyx tube canipanulate, 

 about 2 mm. long, very oblique at both ends and attached on the 

 lower corner, nigrescent, the deltoid teeth about half as long as 

 tube. Fruiting pedicels hardly 1 mm. long and about as long as 

 the hyaline bracts. Peduncles 5-20 cm. long, subterminal, rather 

 stout, much longer than the leaves, rarely some lower ones short. 

 Floral spikes shorter than the peduncles. Leaves rarely 5 cm. long, 

 the upper sessile. Leaflets 5-9 pairs, not contiguous, narrowly ob- 

 long, obtuse, rather smooth above, 5-15 mm. long, cuneate at base, 

 those of the lower leaves much reduced and often oval. Stipules 

 not connate, lanceolate, rather large, green. Internodes shorter 

 than the leaves. Stems slender ascending, a foot or two long, flexu- 

 mis, branched below, from an erect and rather slender root. Pu- 

 ttescence short and closely appi'cssed. Central Mexico, and north- 

 ward probably to Chihuahua. Lower Temperate life zone. 



257. Astragalus militaris n. sp. Pods about 2 mm. wide and 

 Jiigh, and 1 cm. long, shining, with triquetrous-cordate cross section, 

 deeply sulcate dorsally, not at all ventrally. Flowers pink-purple, _ 

 spreading. Banner oval, about 4 mm. long, with sides reflexed 

 in the middle about 1 mm. wide, abruptly erect at calyx tips, 

 -deeply notched; white spot filling the unreflexed banner blade, and 

 traversed by spreading rays of purple ; the groove fills the whole 

 banner. Wings very large, oblong-elliptical, 2 mm. wide, as long 

 a§ banner, concave to keel and very obtuse and rounded, with tips 

 aearly hoi-izontal, about 1 mm. longer than keel. Keel arched 

 jbftza base into iibout a half circle* about 3 nun. long ind 2 mm. high* 



