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). Sinaloa: 

 Cerro de Pinal, Dec. 1848, Seemann 1519 p. p. (K). Jalisco: 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). Morelos: 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. 

 Fig. 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 cm. 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. Sepalum 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. Durango: near City 

 of Durango, Apr.-Nov. 1896, Palmer 615 (type coll.: BGK). 

 T. 2. Fig. 74, 74a. 



121. P. paludosa 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, 



