Blake Revision of Polygala 79 



short-pubescent with straight hairs ; aril with two lateral descend- 

 ing lobes. Polygala sect. Orthopolygala subsect. I. A. Galioideae 

 Chod. Monog. ii. 127 (1893). 



a. Leaves whorled at least to middle of stem, b. 



b. Pedicels 1.2-1.5 mm. long 100. P. conferta. 



b. Pedicels 1 mm. long or less, c. 



c. Aril nearly or quite as long as seed, d. 



d. Leaves fleshy, spatulate-obovate 102. P. turgida. 



d. Leaves not fleshy nor spatulate-obovate, e. 



e. Sepals glandular-ciliate 103. P. aparinoides. 



e. Sepals not glandular-ciliate 105. P. subalata. 



c. Aril much shorter than seed, /. 

 /. Leaves linear to linear-lanceolate, 2-4 mm. long . 97. P. saginoides. 

 /. Leaves spatulate-obovate or rhomboidal, 4-9 mm. 

 long, g. 



g. Wings obovate-oblong 98. P. spathulata. 



g. Wings elliptic 99. P. crucianelloides. 



f. Leaves larger, h. 



h. Flowers 2.5-3 mm. long (Mexico) . . 106 /?. P. alba var. suspecla. 

 h. Flowers 2 mm. long, i. 



i. Leaves 1.5-2.6 mm. wide; capsule 2 mm. long. 



108. P. Wightiana. 

 i. Leaves 2.7-7 mm. wide; capsule 1.3-1.6 mm. 



long 104. P. asperuloides. 



a. Leaves alternate throughout or nearly so, j. 



j. Leaves squamiform 109. P. squamijolia. 



j. Leaves normal, linear or linear-oblong, or the lowest 

 spatulate, k. 

 k. Flowers 2.5-3.5 mm. long, I. 



I. Capsule ovate-oblong (West Indies) 107. P. hecatantha. 



I. Capsule elliptic-oblong (Mexico) .... 106 a. P. alba var. tenuifolia. 

 k. Flowers 1-1.3 mm. long 101. P. sphaerocephala. 



97. P. saginoides Griseb. Stems several to many, loosely 

 spreading from a woody but slender root, angled, glabrous, slender, 

 branched or subsimple, 2-10.5 cm. long. Leaves linear to linear- 

 lanceolate, or the lower oval, the lower or sometimes nearly all in 

 whorls of 5, acute to acuminate at each end, cuspidate, very shortly 

 petioled, glabrous, punctate, 2-4 mm. long, 0.4-0.8 mm. wide. 

 Racemes dense, up to 30-flowered, 2-(at length) 16 mm. long, ter- 

 minating stems and branches; bractlets ovate, acuminate, thickish, 

 persistent, 0.5 mm. long. Flowers 1.5-2.5 mm. long. Upper sepal 

 oval, obtuse, white-glandular-lineate, 1.3 mm. long; the lower 

 ovate, 1.1 mm. long. Wings obovate, cuneate at base, strongly 

 retuse at apex, whitish with green or reddish midrib and white 

 longitudinal glandular lines, 2.5 mm. long, 1.3 mm. wide. Keel 2 

 mm. long; crest of 3 pairs of deeply divided lobes. Upper petals 

 oval, rounded at apex, 1.6 mm. long. Capsule elliptic-ovate, trun- 

 cate at apex, green with white and rosy glandular lines, 2 mm. long, 



