1 20 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. 8. helvola. 



Leaflets linear-oblong. 2. S. pauciflora. 



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

 strongly lobed, V-2^ long : pods 2^-3^ long: seeds 3'^ long, pubescent. — 

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

 October. 



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

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

 Missouri River. 



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

 leaflets entire, 9'^-30'^ long : pods V-2^ long : seeds 1^^ long, glabrous. 

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

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



Fabiily 64. GERANIACEAE J. St. Hill. 

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

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



1. GERANIUM L. 



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

 beaked. 



Flowers 12^^-18'^ broad. 1. 6. maculafim. 



Flowers A'^-G'^ broad. 2. G. Carolinianum. 



1. G. maculatum L. Wild Geranium. 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. Carolinanum L. Crane's Bill. Pubescent branching annual, 

 6''-18^ 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 stipulate leaves and perfect 

 regular, umbellate or cymose, 5-merou8 flowers. Ovules 2-many in each 

 cell. Fruit a loculicidal ciipsule. 



1. OXALIS L. Wood Sorrkl. Sour Clover. 

 Stamens ten, monad el plious at base, alternately shorter. Styles five, 

 separate. Leaflets usual Ij' obcordate. 



Flowers violet. 1. 0. violacea. 



Flowers yellow. 



