120 OXALIDACEAE 



19. STROPHOSTYLES Ell. Wild Bean. 

 Vines with pinnately 3-foliolate, stipellate leaves, and capitate flowers 

 at the end of long peduncles. Pods linear, bearing several oblong trun- 

 cate seeds. 



Leaflets ovate. 1- S. helvola. 



Leaflets linear-oblong. 2. S. paueiflora. 



1. S. helvola (L.) Britton. Spreading annual, l°-4° long: leaflets 

 strongly lobed, l'-2' long : pods 2'-3' long: seeds 3" long, pubescent.— 

 Sandy bottoms, especially along the Missouri River. Not common. July- 

 October. 



Var. Misaouiiensis (S. Wats. ) Britton. Climbing, often 10°-25° high : 

 leaflets usually entire. — Common in sandy woods, especially along the 

 Missouri River. 



2. S. paueiflora (Benth.) S. Wats. Spreading annual, l°-3° long: 

 leaflets entire, 9"-30" long : pods l'-2' long : seeds IJ" long, glabrous. 

 — Sandy bottoms near Courtney, along the Little Blue, near Lee's Sum- 

 mit and adventized along railroads. Uncommon. July-October. 



FAMILY 64. GERANIAOEAE J. St. Hill. 

 Herbs with palmately lobed stipulate leaves and perfect, regular, 5- 

 merous flowers. Ovary 5-lobed, 5-oelled. 



1. GERANIUM L. 



Stamens usually 10. Ovary cells each with two ovules. Fruit long- 

 beaked. 



Flowers ]2'''-18" broad. 1. G. maculatum. 



Flowers V-W broad. 2. Q. CaroKnianum. 



1. G. maculatum L. Wild Geeakium. Erect perennial, l°-2° 

 high, somewhat pubescent : leaves 3-5-parted, the segments toothed at 

 the apex and often lobed : petals rose-purple, woolly at base. — Frequent 

 in woods throughout. April-May. 



2. G. CarolinanumL. Cbanb's Bill. Pubescent branching annual, 

 e'-lS' high : leaves about 5-parted, the segments lobed : petals light pink. 

 — Common in barren soils. April-June. 



Family 65. OXALIDACEAE Lindl. 

 Herbs with palmately 3-foliolate, obscurely sMpulate leaves and perfect 

 regular, umbellate or cymose, 5-merous flowers. Ovules 2-many in each 

 cell. Fruit a loculioidal capsule. 



1. OXALIS L. Wood Sorrkl. Soub Clover. 

 Stamens ten, monadelphous at base, alternately shorter. Styles five, 

 separate. Leaflets usually obcordate. 



Flowers violet. 1. 0. violacea. 



Flowers yellow. 



