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the tip erect and acute, about 1 mm. high, purple-tipped. Calyx tube 

 about 1 mm. long, campauulate, acute at base and equally inserted, cleft 

 deeper above and with unequal teeth about as long as tube. Pedicels 

 slender, about 3 mm. long, much longer than the minute bracts. Pe- 

 duncles filiform, subterminal, often 1 dm. long, weak, with fruiting 

 racemes 1-3 cm. long. Leaves about 5 cm. long, with the petiole fully 

 half the whole. Leaflets about 4 pairs, thickish, broadly linear, obtuse, 

 hardly ,^ mm. long, folded, distant. Stipules not connate, triangular 

 to subulate, 2-3 mm. long. Stems a few inches long, many from the 

 crown, with slender internodes, prostrate. Hills and plains of Chihua- 

 hua Mexico to Zacatecas. Tropical. This has the habit of A. Brandegei- 



