POLYGALACEAE 769 
Bracts persistent on the raceme-rachis. 
Wi P oval to ovate: racemes usually acuminate 
at the tip. T. P. Chapmanii. 
Wings narrow, ds varying to broadest above the 
middle or bel it: racemes blunt or abruptly 
point ted at the 
Mature wings about 2 mm. long: capsule wider than 
long: seed about 1 mm. long. 8. P. Nuttallii. 
Mature wi ngs 3.5-4 mm. long: capsule longer than 
eed about 1.5 mm. long. 9. P. Curtissii. 
Bracts deciduous from the raceme-ra achis 
Mat wings not clawed: capsule slightly exceeded by 
os in 10. P. mariana. 
Mature wings clawed: capsule much exceeded by the : 
wings. 11. P. Harperi. 
Flowers large: wings becoming 5 mm. long or more: capsule 
over 3 mm. long. 12. P. viridescens. 
VI. Cruc 
Raceme loosely and rather sparsely bocca: pU to the 
apex: persistent bracts separate. 13. P. Hookeri. 
Raceme densely many-flowered, rounded or abruptly narrowed 
at the apex: persistent bracts clon fo ogether 
Mature wings ovate, abruptly pointed: sepals obtuse: 14. P. brevifolia. 
Mature wings hastate- deltoid, MA nate, sometimes cau- 
date-acuminate: sepals acu 
aceme manifestly Seguneled: mature wings much 
prey than wide, caudate-acuminate. 15. P. ramosior. 
sea oe sessile or nearly so: mature wings about as wide 
ong, abruptly short-acuminate. 16. P. cruciata. 
VII. BOYKINIANAE 
Pune perennial. 
aves whorled, at least up to the middle of the stem 
e^ eed HAA Jess than twice as long a s thick, rounded 
at the 17. P. Boykinii. 
aia slender, over twice as long as thick, acute at the 
18. P. flagellaris 
eave: Pa noried only near the base of the stem. 19. P. praetervisa, 
Plant annual. 
Inter eee of the stem greatly elongate: seed fusiform, 
gla 20. P. leptostachys. 
Internodes of of = stem not greatly elongate: seed ovoid, 
Raceme Ce with the fruits persistent on the 
: s about as long as 
the capsule: seed-body about thrice as x as thick. 21. P. ambigua. 
i P 
thic 
Capsule about 1 mm. long: seed aaay pena 29. P. verticillata 
Capsule about 1.5 mm. long: seed hir 23. P. Pretzii, 
1. P. pany L. EC 1-5 dm. tall, the stem glabrous or puberulent: blades 
of the r leaves linear to lanceolate, more or less serrulate (or ovate and 
distinctly serrulate and with lar mc psule 
.0—4. ng: seed 
.5 mm, long.—(SEN on) 
woods and rocky soil, often ane 
various provinces, Miss. to Ark., y, 
N. B, and N. C.—Spr.—The roots are 
sometimes used medicinally. 
. P. polygama Walt. Plant 1-5 dm. 
e stem glabrous: leaves mot ud 
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