Blake Revision of Polygala 87 



Palmer 369 (cotype coll.: G). Coahuila: Sierra de la Paila, 

 Oct. 1910, Purpus 4760 (BG). San Luis Potosi: San Miguelita 

 Mts., Sept. 1877, Schaffner 4 (cotype coll.: G); Bagre, Minas de 

 San Rafael, May 1911, Purpus 5165 p.p. (G); 1830-2440 m., 

 1878, Parry & Palmer 39 p. p. (cotype coll.: B); Schaffner 493 

 (B); Purpus 5165a (B). Puebla: calcareous soil, Tehuacan, 1675 

 m., 7 Aug. 1901, Pringle 8575 (BGK: approaching var. tenuifolia). 

 Oaxaca: Las Sedas, 1830 m., 15 Sept. 1894, Pringle 5717 (G: near 

 var. tenuifolia). Sierra Madre, Mexico: Seemann 2153 (B). Also 

 in southern Arizona: Lemmon 500 (G); Blumer 3336 (G); T. E. 

 Wilcox (G). 



107. P. hecatantha Urb. Stems numerous, erect, slightly 

 branched above, from a woody slightly branched root, 5-angled 

 and slightly winged, glabrous, about 6 dm. high, very leafy. 

 Leaves linear or linear-lanceolate, alternate (except for 3-6 whorls 

 below), 1-nerved, slightly rough on midnerve and margin, glabrous, 

 slightly revolute, green both sides, subsessile, the middle ones 1.3-2 

 cm. long, 1.5 mm. wide, acuminate at each end, very acutely mu- 

 cronate. Racemes becoming 8.5-14 cm. long, 6-7 mm. thick, 

 densely flowered, on peduncles 3.5-9 mm. long. Flowers white, 

 slightly pink-tinged, 3.5 mm. long. Sepals subherbaceous, whitish- 

 margined, oblong-oval, obtuse, glabrous, 1.3-1.5 mm. long. Wings 

 oval-ovate, retuse at apex, cuneate at base, glabrous, 3.5 mm. long, 

 1.7 mm. wide. Upper petals ovate, obtuse at apex, 3.2 mm. long. 

 Keel 3.5 mm. long; crest of about 9 linear obtuse processes. Cap- 

 sule ovate-oblong, obtuse, broadest near the base, 2.7-3.1 mm. long, 

 1.6 mm. wide. Seed pilose, 2.5 mm. iong. Aril scarious, glabrous, 

 2-lobed, 1.3 mm. long. Urb.! Sym. Antill. i. 331 (1899). Porto 

 Rico : near Salinas da Cabo-Rojo, near Los Morrillos, 14 Feb. 1885, 

 Sintenis 531 (cotype coll. : BGK) ; near Lares, Feb. 1886, Sintenis 

 (G). Virgin Islands: sand dune, West End, Anagada, 19-20 

 Feb. 1913, Britton & Fishlock 948 (GK). T. 2. Fig. 62. 



108. P. Wightiana, sp. nov. Annua erecta vel adscendens uni- 

 caulis ramosa glabra 1.3-2.1 dm. alta, caule angulato vix alato. 

 Folia ad mediam plantae partem et supra verticillata, ima (2-3 

 verticilli) obovata obtusa 3.5-7.5 mm. longa 1.7-2.5 mm. lata; 

 media et superiora anguste lanceolata vel anguste lanceolato-obo- 

 vata acuta mucronata basi anguste cuneata punctata 1-nervia sub- 

 sessilia 8-17 mm. longa 1.5-2.6 mm. lata; suprema pauca alterna. 



