Blake — Revision of Polygala 97 
at base, 3-nerved, 1.3 mm. long, 0.7 mm. wide. Keel 1-1.1 mm. 
long; crest of 2 pairs of lobes, the posterior adnate, cuneate, emar- 
ginate, the anterior linear. Upper petals oblong-oval, rounded at 
apex, 1.2 mm. long. Stamens 6. Capsule suborbicular, 1.1 mm. 
long, 1 mm. wide, bearing about 2 oval glands on each side of sep- 
tum. Seed black, glabrous, ellipsoid-fusiform, striate, 0.5 mm. 
long. Aril extremely minute. — Wats.! Proc. Am. Acad. xxii. 398 
(1887); Chod. Monog. ii. 216. t. 23. f. 22-24 (1893). — Sinatoa: 
Cerro de Pinal, Dec. 1848, Seemann 1519 p. p. (K). Jauisco: Rio 
Blanco, Oct. 1886, Palmer 756 (TyPE coLL.: BGK); bare hills near 
Guadalajara, 5 Dec. 1888, Pringle 1829 (BGK); moist ravines of 
Rio Blanco near Guadalajara, 1525 m., 13 Oct. 1903, Pringle 11379 
(GK). Moreros: damp soil near Cuernavaca, 16 Nov. 1895, 
Pringle 7057 (G). GuaTEMALA: damp shady places, between 
Cubuleo and Foyabaj, Sept. 1870, Bernoulli 1102 (K).— T. 2. 
Fia. 73 
120. P. decidua, sp. nov. Annua tenuis erecta sparse ramosa 
2.2-3.1 dm. alta, caule glabro vix angulato, ramis erectis. Folia 
linearia alterna acuta mucronata basi paullulum angustata 1-nervia 
paullum revoluta glabra erecta 8-10 mm. longa 0.6—0.7 mm. lata, 
in petiolis ca. 0.5 mm. longis. Racemi tenues cylindrici apice acuti 
vix comosi sublaxiflori 1-4 cm. longi (axi demum 10 em. longo) 4-6 
mm. dimetente in pedunculis 0.6-3.5 cm. longis; bracteis citius 
deciduis; pedicellis 0.6-0.9 mm. longis. Flores rosei 1.9-2.3 mm. 
longi. Sevan superius ovatum obtusum 1 mm. longum; in- 
feriora lanceolato-ovata 0.8 mm. longa; omnia basi glandulis 2-3 
donata. Alae spathulato-obovatae obtusae 3-nerviae 2—-2.3 mm. 
longae 0.8 mm. latae. Carina 1.8-2 mm. longa; crista e lobis 2- 
jugis postico lanceolato obtuso integro ad carinam adnato et antico 
trilobato constans. Petala superiora oblonga apice emarginata ad 
1.5 mm. longa. Capsula elliptica emarginata ad septum utrinque 
glandulis uniseriatis praedita 2 mm. longa 1 mm. lata. Semen 
cylindricum glabrum utroque obtusum longitudinaliter puncticu- 
latum 1.2 mm. longum. Arillus minimus. — DuraANGo: near City 
of Durango, Apr.—Nov. 1896, Palmer 615 (tyPE cott.: BGK). — 
T.2. Fie. 74, 74a. 
121. P. pauuposa St. Hil. Slender annual, simple or usually 
branched, erect, up to 5.6 dm. high, the stem and erect branches 
subangulate, glabrous. Leaves all scattered, linear, acuminate, 
