- 6 4 - 

 OXALIDACEAE, th Wood Sorrel Family 



Herbs, with alternate or basal compound leaves with 3 reverse 

 heart-shape leaflets; sepals, petals, and styles each 5; stamens 10. 

 (Wood Sorrel) 



la. Leaves all basal; flowers white to pink-purple (12 dm. high; 



late spring) 2. 

 Ib. Stem-leaves present; flowers yenow (15 dm. high; spring and 



summer) -3. 



2a. Flower-stalks bearing a single flower 



Wood Sorrel, Oxalis aeetosella. 

 2b. Flower-stalks bearing an umbel of several flowers 



Wood Sorrel, Oxalis violacea. 



3a. Stem prostrate and creeping Wood Sorrel. Oxalis repens. 



3b. Stem erect or ascending 4. 



4a. Pedicels with spreading pubescence 



Wood Sorrel, Oxalis corniculata. 

 4b. Pedicels with appressed pubescence 



Wood Sorrel, Oxalis stricta. 



GERANIACEAE, the Geranium Family 



Herbs, with deeply lobed or divided leaves; flowers regular, with 

 5 sepals, 5 petals, 5 or 10 stamens, and a 5-celled ovary. 



la. Anthers 5 (spreading or ascending plants, 2 4 dm. high; flow- 

 ers pink or purple, spring and summer) 2. 

 Ib. Anthers 10 3. 



2a. Leaves pinnately dissected 



Stork's-bill, Erodium cientariiun. 

 2b. Leaves palmately divided into cuneate lobes 



Crane's-bill, Geranium pnsillum. 



3a. Leaves ternately divided, the lobes pinnatifid (2 4 dm. high; 

 flowers purple, late spring and summer) 



Herb Robert, Geranium robertianum. 

 3b. Leaves palmately 3 11-lobed 4. 



4a. Petals 12 mm. long or more (3 6 dm. high; flowers pale 

 purple, -spring) Wild Geranium, Geranium macnlatum. 



4b. Petals less than 10 mm. long (Crane's-bill) 5. 



