156 NEW YORK STATE MUSEUM 



which in fruit is I or more inches long; carpels of the fruit permanently 

 attached to the styles, separating from the base and curved upward in 

 dehiscence. 



In rich or moist woodlands, Maine and Ontario west to Manitoba, 

 south to Georgia and Alabama. Flowering from late in April to June 

 or July. 



There are several other species of Geranium in New York, most of 

 them small-flowered, introduced species. Of the native ones, Bicknell's 

 Geranium (Geranium bicknellii Britton) is an annual with small, 

 purple flowers, somewhat less than one-half of an inch broad in a loose 

 cluster, on two-flowered peduncles, with the beak of the fruit long pointed. 

 The Carolina Geranium (Geranium carolinianum Linnaeus) 

 has a more compact inflorescence and a short-pointed fruit. 



Wood Sorrel Family 



Oxalidaceae 

 White or True Wood Sorrel; Alleluia 



Oxalis acetosella Linnaeus 



Plate I0?b 



Rootstock perennial, slender, scaly and little branched. Leaves basal, 

 three to eight together, each 2 to 6 inches high, pubescent; petioles broad- 

 ened at the base and jointed. Leaflets three, obcordate, wider than long, 

 one-half to i inch wide. Flowers one-half to three-fourths of an inch 

 broad, solitary on stalks as long or longer than the leaves; petals white 

 or pink with deep pink veins, three or four times longer than the 

 calyx; stamens ten. Fruit a subglobose, cylindric capsule about one- 

 sixth of an inch long. At the base of the leaves are also found short-stalked 

 flowers. 



In cool, damp woods, or shaded mossy banks, Nova Scotia to the north 

 shore of Lake Superior, south to North Carolina. Also in Europe, Asia 

 and northern Africa. Flowering from May to July. 



