Blake — Revision of Polygala 85 
late-margined, very shortly petioled, 3.5-6 mm. long, 1.5-3 mm. 
wide; middle and upper mostly scattered, lanceolate or lance- 
obovate or -elliptic, acute or acutish at each end, 7.5-14.5 mm. 
long, 2.3-4 mm. wide. Racemes dense, many-flowered, 1-(at 
length)4 cm. long, 5-6 mm. wide, on peduncles 0.3-3.4 em. long. 
Flowers white with green nerves, 2.5 mm. long. Sepals lance-ovate, 
obtuse, white-margined, gland-dotted, 1 mm. long. Wings oval, 
rounded at apex, short-clawed, white with greenish center, 3—sub- 
5-nerved, gland-dotted, 2.6 mm. long, 1.3 mm. wide. Keel 2.3 
mm. long; crest of 3 pairs of lobes: posterior pair cuneate, barely 
3-fid at apex; 2 anterior pairs linear, entire. Upper petals oval, 
rounded at apex, 2.1 mm. long. Capsule suborbicular-elliptic, 
slightly oblique, 2 mm. long, 1.6 mm. wide. Seed 1.6 mm. long, 
sparsely appressed-pubescent, equalled by the linear-oblong ap- 
pressed lobes of the aril. — Wats.! Proc. Am. Acad. xxvi. 132 
(1891). — Durango: City of Durango, 1896, Palmer 908 (G). 
San Luis Porost: San Miguelita Mts., Aug. 1877, Schaffner 5 
(GK); Alvarez, July 1904, Palmer 2Q5 (GK); 1830-2440 m., 1878, 
Parry & Palmer 39 p. p. (GK), 393 p. p. (K). Vera Cruz: Vera 
Cruz to Orizaba, F. Mueller 999 (K); Maltrata, Jan. 1883, Kerber 
243 (BK: nom. vernac. ‘‘ mexixe’”’). Mexico: low ground, Flor 
de Maria, 4 Sept. 1890, Pringle 3240 (ryPE coLL.: BGK); Valley 
of Mexico, 1856, Schmitz (B). Frprrat District: base of Sierra 
de Ajusco, 2380 m., 29 Sept. 1896, Pringle 6550 (BGK); open 
woods near Eslaba, 2440 m., 18 Sept. 1903, Pringle 11382 (GK). 
Micuoacan: Cerro de Quinzeo, 2590 m., Galeotti 876 (K). Oax- 
ACA: 1842, Ghiesbreght (K). Mexico without locality: Pavon (B). 
seD 2 oN ie. OF. 
106. P. ata Nutt. Stems numerous from a perennial root, often 
with a cluster of short sterile leafy branches at base, erect or ascend- 
ing, simple or sparsely branched, glabrous, very narrowly angulate- 
winged, 2-3.5 dm. high. Leaves mostly scattered, but the lowest 
(2-7 whorls) or even those to” middle of stem verticillate; lowest 
spatulate-obovate, mucronate at the rounded apex, scarcely peti- 
oled, with subdenticulate margin, 1-nerved, 4-12 mm. long, 1.5- 
2.5 mm. wide; the others linear, acuminate to the cuspidate apex, 
0.8-2.5 em. long, 1-1.5 mm. wide. Racemes densely flowered, 
conic-cylindric, 2-8.5 em. long, 5-8 mm. thick, on peduncles 2-8 
em. long; pedicels 1 mm. long. Flowers white with green center, 
