Blake Revision of Polygala 105 



acute, the lower much narrower, glabrous. Wings conspicuously- 

 longer than corolla, spatulate, subobtuse or shortly acute, gradu- 

 ally clawed at base, 3-nerved, the nerves simple. Limb of keel 

 shorter than claw; crest of 2 lamellae and 4-5 narrower lobes, 

 more or less incised or entire. Capsule rather shorter than wings, 

 elliptic, narrowly subserrulate-winged on one side. Seed oblong, 

 appressed-pilose, subcornute at apex, curved, the aril-lobes linear, 

 membranaceous, descending, 2/3 as long as seed. Chod. Bot. 

 Jahrb. lii. Beibl. 115. 84 (1914), as P. macrolonchum. Based on 

 Seler 2925, from grassy places, Zaragoza, Chimaltenango, Guate- 

 mala. Not seen; description compiled. 



129. P. Watsoni Chod. Stems numerous, branched, ascending 

 from a thick woody base, 3.5 dm. long or less, finely incurved-pu- 

 berulous. Leaves crowded, linear-acicular, acuminate at each end, 

 obliquely mucronate, glabrous, flattish above, strongly 2-sulcate 

 beneath, 4-11 mm. long, 0.4-0.6 mm. wide, on incurved-puberulous 

 petioles 0.5 mm. long. Racemes about 10-flowered, 6-10 mm. long, 

 8-10 mm. thick. Flower white with pale veins, 5 mm. long. Sepals 

 oblong, abruptly acutish, denticulate toward apex, glabrous, 2 mm. 

 long. Wings obovate, cuneate at base, mucronate at the obtuse 

 apex, glabrous, 3-sub-5-nerved, 5 mm. long, 1.8 mm. wide. Keel 

 3.5 mm. long; crest of 2 pairs of lobes, the posterior adnate, cune- 

 ate, entire, the anterior oblong-spatulate, erect, bifid. Upper petals 

 oblong-oval, rounded at apex, 3.2 mm. long. Capsule elliptic, 

 narrow-margined on both cells (both cells dehiscent), glabrous, 3 

 mm. long, 2 mm. wide. Seed cylindric, curved, blackish, 2.6 mm. 

 long. Aril 1.8 mm. long, with minute umbo and appressed linear 

 scarious lobes. Chod.! Monog. ii. 285. t. 26. f. 8-9 (1893). P. 

 acicularis Wats.! Proc. Am. Acad. xxi. 445 (1886), not Oliv. Fl. 

 Trop. Afr. i. 132 (1868). Chihuahua: calcareous ledges and banks, 

 Santa Eulalia Mts., 1 May 1885, Pringle 233 (type coll.: G); 

 Pringle 713 (K). T. 2. Fig. 80. The type number was cited 

 by Dr. Watson and by Pringle in litt. as 233, but on the label of 

 the specimen in the Gray Herbarium is printed 223, doubtless by 

 error. A later collection from the same locality, more widely 

 distributed by Pringle, is numbered 713. 



130. P. scoparioides Chod. Stems very numerous, angulate, 

 finely incurved-puberulous, 0.9-3 dm. high, slightly glaucescent. 

 Leaves linear-acicular, acute to acuminate at each end, obliquely 



