118 PROCEEDINGS OF THE AMERICAN ACADEMY 



oblong-campanulate tube : corolla yellow, the keel tipped with violet ; 

 standard obovate, 7-9 lines long, much exceeding the keel : pods 

 coriaceous, brown, broadly ovate or globose, very obtuse or abruptly 

 pointed, 6-7 lines long, somewhat sulcate on both sutures, pubescent 

 with short white woolly hairs. — Ledges and cliffs, Mt. Orizaba, 

 9,000 ft., August (no. 262). This species is closely related to 

 A. Humholdtii , Gray, but differs essentially in its obtuse or abruptly 

 pointed subglobose tomentulose pods. 



Desmodium (Heteroloma) subsessile. Stem herbaceous, trail- 

 ing, branched, somewhat hispid : stipules lanceolate, acuminate, ciliate, 

 3 lines long: petioles 1-1^ lines in length: lateral leaflets elliptic, 

 occasionally with a couple of rounded lateral lobes, the terminal 

 leaflets broadly ovate, rounded or retuse at the apex, rounded at 

 the base, thinly appressed-pubescent on both surfaces, ciliate : racemes 

 terminal and axillary, long-peduncled : bracts ovate, acuminate, cili- 

 ate, soon deciduous : pedicels in pairs, distant, spreading, 6-7 lines 

 long : flowers about 4 lines in length : pods (immature) 5-6-jointed, 

 the margins nearly equally notched ; joints orbicular, 1\ lines long, 

 finely uncinate-pubescent. — Wooded hills near Esperanza, 8,000 ft., 

 August (no. 325). Near D. 3Iexicanum, Wats., but distinguished by 

 its foliage. 



Phaseolus (Drepanospron) Esperanza. Stem procumbent, 

 stout, furrowed, hispidulous with reversed hairs, 3 feet or more in 

 length : leaflets broadly ovate-triangular, lf-2 inches long, three 

 fourths as broad, obtusely and hastately 3-lobed, the lateral leaf- 

 lets often entire or with one large rounded lobe, strigulose above, 

 pubescent on the nerves below ; the lateral lobes rounded, the ter- 

 minal triangular, obtuse, mucronate : racemes loosely many-flowered : 

 bracts persistent, ovate-lanceolate, acute, ciliate, 2 lines long, shorter 

 than the pedicels: calyx pubescent, 1| lines in length: corolla green- 

 ish yellow, tinged with purple, 6 lines long: pods (immature) villous, 

 slightly curved, ^ inch long, 2 lines broad. — Wooded hills near 

 Esperanza, 8,000 ft., August (no. 371). Closely related to P. pedi- 

 cellatus, Benth. (ex char.), but differing in the shorter pedicels and 

 pubescent stems and leaves ; also near P. leptostachyus, Benth. (ex 

 char.), which has rhombic-ovate leaflets. 



Eryngium (Parallelinervia) Seatoni, Coulter & Rose, n. sp. 

 Stem erect, stout, 3-4 feet high : leaves linear, parallel-nerved ; 

 radical leaves 12-15 inches long, 4-5 lines wide, the margin toothed 

 with paired spines, one much longer and about equal to the breadth of 

 leaf ; stem leaves all alternate, with marginal spines often in threes and 



