Blake Revision of Polygala 83 



pilose, 1.3 mm. long. Aril 1.2 mm. deep, its lobes linear-oblong- 

 obovate, appressed. Rose! Contr. U.S. Nat. Herb. x. 123. t. 

 39 (1906). P. alba Nutt. var. alcalina Chod.! Bull. Herb. Boiss. 

 iii. 122 (1895). San Luis Potosi: alkaline meadows, Hacienda 

 de Angostura, 14 July 1891, Pringle 3792 (type coll. of both 

 names: BG) ; Media Luna, near Rio Verde, 2-8 June 1904, Palmer 

 84 (G); 1830-2440 m., 1878, Parry & Palmer 39| p.p. (K); 

 Purpus 5173 (B). T. 2. Fig. 54. 



103. P. aparinoides Hook & Arn. Stems solitary or several 

 from a slender perennial base, erect or laxly spreading, narrowly 

 5-angulate-winged, and minutely sparsely appressed-puberulent, 

 23 cm. long or more. Leaves verticillate in 5's throughout, or the 

 uppemost rameal scattered, lanceolate to elliptic-lanceolate, or the 

 lowest orbicular or elliptic-obovate, acute or subacute at each end, 

 cuspidate, glandular-punctate, glabrous, 1-nerved, with narrow 

 denticulate margin, 10-21 mm. long, 4.5-8 (10) mm. wide, on 

 petioles 1 mm. long. Racemes rather densely many-flowered, be- 

 coming 16.5 cm. long or less, 5-6 mm. thick, on peduncles 8.5 cm. 

 long or less; pedicels 0.5-0.7 mm. long. Flowers rosy, 3 mm. long. 

 Upper sepal broadly oval, gland-dotted, sparsely glandular-ciliate, 

 1.8 mm. long; lower ovate, acutish, gland-dotted, sparsely glandu- 

 lar-ciliate, 1.5 mm. long. Wings spreading, elliptic-obovate, some- 

 what plicate, short-clawed, rounded at apex, with 5 pink nerves, 

 gland-dotted, glabrous, 3 mm. long, 2 mm. wide. Keel 2.6 mm. long; 

 crest of about 4 pairs of lobes, the posterior cuneate, scarcely lobed, 

 the 3 anterior narrow, entire, oblong. Upper petals obliquely 

 rhombic-ovate, 3.5 mm. long. Capsule broadly elliptic, 2-2.5 mm. 

 long, 1.6-2.1 mm. wide. Seed shortly appressed-pilose, 2-2.1 mm. 

 long, equalled by the narrowly oblong appressed lobes of the aril. 

 Hook. & Arn.! Bot, Beech. Voy. 277 (1836-40). P. leptandroides 

 Turcz. ! Bull. Soc. Nat. Mosc. xxvii. no. 2. 349 (1854). P. nemoralis 

 A. W. Bennett! Journ. Bot. xvii. 172 (1879), in part, P. Vogtii 

 Chod.! Monog. ii. 144. t, 20. f. 25-26 (1893). P. verticillata L. 

 var. aparinoides (Hook. & Arn.) Chod. 1. c. 140, as to syn. only. 

 Jalisco: Beechey (type: K). Chiapas: Feb., Linden 173 (K: 

 type coll. of P. leptandroides, cotype coll. of P. nemoralis, 

 cotype coll. of P. Vogtii). Guatemala: Chilasco, 1861, Salvin 

 & Godman (cotype coll. of P. nemoralis : K) ; Laguna de Ayarces, 

 July 1870, Bernoulli 662 (K) ; between Santa Rosa and El Patal, 



