17 



ware, Pennsylvania, Ohio, northern Indiana, and northern IlHnois; 

 along the Coastal Plain to Florida and eastern Texas. 



alkalinity: mean 3.7 mg/1; range 1.0-7.0 mg/1 (6) 



pH: mean 6.4; range 5.6-6.9 (6) 



12. Utricularia resupinata B. D. Greene Fig. 5, Map 12 



Uncommon in acidic regions of southern and central New En- 

 gland. This species, like U. subulata and U. cornuta, is difficult to 

 identify in the sterile state and is usually overlooked. Many of the 

 historical sites have been revisited to search for this species, but to no 

 avail. This species seems to flower more often when the water recedes 

 during dry seasons. Range extends from Nova Scotia west to Quebec, 

 northern Michigan, and northwestern Wisconsin south to New York, 

 northern Pennsylvania, northern Indiana, and northeastern Illinois; 

 along the Coastal Plain to Georgia, Florida, and Alabama. 

 Rare and endangered plant list: Vermont 



