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Astragalus Orizabae var. Irolanus N, Var. Pods ovate and short- 

 ly acuminate, 2 cm. long. 1 cm. wide, shaliow-sulcate at both sutures. 

 Leaflets sharply acute at both ends, 1.5-2 cm. long, inclined to be sil- 

 ky pubescent. Leaves 3-4 dm. long. Peduncles often 4 dm. long. 

 Flowers often 2-3 cm. long. Collected near Irola Mexico by J. N. 

 Rose, June 14 1899, Nat. Herb. No. 346530, the upper plant on the 

 sheet. Another specimen is from near Lajos Hidalgo, Aug. 5 1905 bv 

 Rose. Nat. Herb. No. 452656. 



194 Astragalus anisus Jones Cont. 4 34 (1893). Pods about 1.5 

 cm. long, oval, completely 2-celled by a thin partition, chartaceous, 

 rather spongy and thinly fleshy when green, finely reticulated, a little 

 sulcate at both sutures, hardly obliejue, few. Flowers spreading, 6-10, 

 subcapitate, but short-spicate in fruit. Calyx tube 1 cm. long, with 

 the subulate teeth about 2 mm. long. Bracts and pedicels about equnl 

 and 4 mm. long. Peduncles shorter than the leaves, about 2.5 cm. long, 

 stout and erect. Leaves about 5 cm. long, with petioles fully as long 

 as the rachis. Leaflets 3-6 pairs, obovate to oval, rounded, 4-7 mm. 

 long, contiguous. Stems very short, with internodes hardly as iong 

 as the lanceolate stipules. Whole plant silvery with rather long and 

 echinate and slender hairs fixed by the middle, the calyx only nigres- 

 cent. A unique species only a few inches high, never found but once, 

 and tiien only in fruit, near Pueblo Colorado, Lower Temperate life 

 zone. 



195 Astragalus orthanthus Gray Proc. Am. Acad. 6 195 (1864). 

 Pods about 3.5 cm. long, few on the short rachis, inclined to be sul- 

 cate at both sutures, finely reticulated and crosi-ribbed, completely 2- 

 celled. Flowers red, about 3 cm. long, loosely short-spicate, very nar- 

 row and with elongated and exserted claws. Banner lanceolate and 

 hardly arcuate. Wings linear, hardly as long as the oblanceolate keel 

 whose tip is only slightly arcuate and acutish much after the- style of 

 A. coccineus and giganteus. Calyx tube about 1 cm long, 3 mm. wide 

 and a little narrowed above, the base obliquely triangular and fleshy 

 and rather unequally inserted, the subulate teeth about 3-4 mm. long. 

 Bracts and pedicels about equal and 3 mm. long. Peduncles shorter 

 than the leaves, 1-2 dm. long. Leaves narrow, almost sessile, with 

 12-15 pairs of narrowly elliptical and acutish but not contiguous leaf- 

 lets which are nearly 2 cm. long and velvety-hairy to nearly smooth, 

 with appre = sed hairs fixed by the base. Stems 1-4 dm. long, ascend- 

 ing, internodes rarely 5 cm. long. Stipules rather large, triangular. 

 Near Saltillo and in Coahuila Mexico, in rocky places, blooming in 

 summer, lower part of the Lower Temperate life zone. 



