85 
the tip erect and acute, about 1 mm. high, purple-tipped. Calyx tube 
about 1 mm, long, campanulate, 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 5 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- 
