Polygala caerulescens S. F. Blake

Polygala caerulescens Blake, sp. nov
Stems several from a fruticulose base, erect, leafy, simple or sparsely branched, sulcate, finely incurved-hispidulous, 9-13 cm. high; leaves linear-acicular, 7-11 mm. long, 0.5-1 mm. wide, subulate-tipped, very sparsely hispidulous or glabrous, flattish above, carinate but not sulcate beneath; racemes sessile, rather densely flowered, 2-3.8 cm. long, the axis minutely incurved-hispidulous; bracts lance-subulate, purplish with narrow whitish margin, deciduous, 1.8 mm. long; pedicels 0.8-1 mm. long; upper sepal ovate, the lower lanceolate, obtuse, with greenish-blue center and white margin, glabrous, 1.8-2 mm. long; wings narrowly spatulateobovate, 3.8 mm. long, 1.1 mm. wide, obtuse, 3-nerved, dark greenish-blue on claw and along the nerves and sometimes purplish-tinged, white-margined; keel purplish-tinged, 2.8 mm. long, the crest on each side of a lamella and a pair of lobes; capsule elliptic-oblong, 2.7 mm. long, 1.7 mm. wide, the upper cell very narrowly winged and with 2-3 oblique transverse veins, the lower wingless, dehiscent; seeds of both cells similar, subcylindric, black, spreading-pubescent, 2.3 mm. long; aril 1.5-1.7 mm. long, the lobes connate into one to the obliquely emarginate apex, linear-oblong.
Type collected near Calchicomula, Puebla, Mexico, July 27, 1901, J. N. Rose 6" R. Hay 5786 (U. S. Nat. Herb. no. 395573).