306 



NORTH AMERICAN FLORA 



[Volume 25 



I. Phlebotaenia. 



II. Badiera. 



Flowers in terminal or axillary rarely extra-axillary racemes, or rarely umbellate. Sepals 5, 

 the three outer herbaceous or the two lower very rarely petaloid, free or the two lower connate, 

 deciduous or persistent; the two inner (wings) petaloid or rarely subherbaceous, usually much 

 larger than the others, deciduous or persistent. Petals normally 3, united at base, the lower 

 (keel) boat-shaped, clawed, sometimes 3-lobed, unappendaged or usually with an apical beak 

 or crest; the two upper ligulate to ovate, sometimes galeate, united to staminal tube or keel 

 or both, at least at base; the two lateral petals rarely present, always very small. Stamens 

 8 or rarely 6, the filaments united nearly to apex into a sheath split on the upper side, adnate 

 to keel and upper petals at base; anthers usually confluently 1-celled, opening by an apical or 

 introrse-apical pore. Ovary 2-celled, one of the cells very rarely abortive in fruit; ovules 

 solitary, pendulous from the apex of the central placenta; style usually slender and often 

 elongate, bent, more or less excavated at apex; stigma 2-lobed, often tufted. Capsule 

 equally or unequally 2-celled (one cell rarely more or less completely abortive), winged, 

 margined, or marginless, compressed contrary to the partition, usually membranaceous- 

 herbaceous, rarely subcoriaceous ; cells loculicidally dehiscent or the lower rarely indehis- 

 cent. Seeds globose to fusiform or conic, usually pubescent, almost always arillate, with or 

 without endosperm; testa crustaceous. 

 Type species, Polygala vulgaris L. 



Keel blunt, without crest or beak. 



Leaves with very numerous strong nearly parallel veins; capsule large, 

 broadly winged on one side, narrowly or broadly winged on the other. 

 Leaves with few distant veins; capsule never broadly winged. 

 Calyx with sepals all free. 



Wings very small, about one-third longer than sepals; capsule 



subcoriaceous, thick-walled. 

 Wings much larger than sepals; capsule membranaeeous-herba- 

 ceous, thin-walled. 

 Sepals and wings at least in part deciduous. 



Lower sepals like the upper one herbaceous, deciduous 

 like the wings, or with them rarely subpersistent; 

 aril pubescent at least at apex. 

 Capsule and leaves not obviously glandular. 



Leaves small, mostly 5-20 mm. long, usually 

 distinctly dimorphous, the lower shorter, oval or 

 oblong-oval, the upper oblong to linear, or rarely 

 uniform, but then smaller than in the next 

 group. 

 Leaves comparatively large, mostly 2-6 cm. long, 

 1-3 cm. wide, ovate, gradually reduced upward, 

 not noticeably dimorphous. 

 Capsule and leaves bearing large glands. 

 Lower sepals petaloid, deciduous like the wings, the upper 

 one herbaceous, persistent; aril glabrous. 

 Sepals and wings persistent, the sepals herbaceous. 

 Calyx with two lower sepals connate; wings and sepals persistent. 

 Keel with beak or crest. 



Keel with a conic or cylindric beak (obscure in P. acanlhodada) , not 

 crested. 

 Sepals (except usually the upper) and wings deciduous. 

 Sepals and wings persistent. 

 Keel with a fimbriate crest. 

 Sepals and wings deciduous. 

 Sepals and wings persistent. 



Capsule unmargined or narrowly and equally margined on both 



cells. 

 Capsule winged or margined on the upper cell, marginless on the 

 lower. 



I. Pheebotaenia 

 Leaves 2.4-5.5 cm. long. 

 Leaves 8-12.5 cm. long. 



II. Badiera 

 Leaves scabrous above. 



Capsule hispidulous at maturity. 

 Capsule merely ciliolate at maturity. 



Leaves 1.5-3 cm. long, emarginulate; capsule 6.2-6.8 mm. wide. 

 Leaves 1.3-1.8 cm. long, rounded at apex; capsule 8.5 mm. wide. 

 Leaves strigillose but smooth to the touch above. 



Peduncle shorter than the pedicels; racemes spiciform, very densely 

 flowered. 



III. Microthrix. 



IV. Hebantha. 

 V. Adenophora. 



VI Bieoba. 

 VII. Huateca. 

 VIII. Hebeceada. 



IX. EURHINOTROPIS. 



X. PantomonE. 

 XI. Tricusperma. 



XII. TlMUTUA. 

 XIII. MONNINOPSIS. 



1. P. cuneata. 



2. P. Cowellii. 



3. P. Penaea. 



