DIPSACACEAE, the Teasel Family 



Herbs with opposite leaves, and small pale blue flowers aggregated 

 in dense heads; calyx minute; petals 4, united; stamens 4, attached 

 to the corolla; ovary inferior. 



One species in Michigan, 12 m. high, with prickly leaves and 

 stem, blooming in summer Teasel, Dipsacus sylvestris. 



CUCURBITACEAE, the Gourd Family 



Herbs, climbing by tendrils, with alternate palmately lobed leaves 

 and imperfect flowers; -staminate flowers in showy clusters, with 5 6 

 petals and 3 stamens; pistillate flowers small. 



la. Leaves 5-angled or shallowy 5-lobed (flowers white, summer) 



Bur Cucumber, Sicyos angiilatus. 



Ib. Leaves 5-lobed to about the middle (commonly cultivated and 

 frequently wild; flowers white, summer) 



Wild Cucumber, Echinocystis lobata. 



CAMPANULACEAE, the Bellflower Family 



Herbs with alternate simple leaves and milky juice; sepals 5; 

 petals 5, united; stamens 5, attached at the very base of the corolla; 

 ovary inferior. 



la. Stem-leaves circular or nearly so, cordate-clasping at base (2 6 

 dm. high; flowers blue, axillary, in summer) 



Venus' Looking- Glass, Specularia perfoliata. 



Ib. Stem-leaves linear or nearly so, not over 1 cm. wide (sum- 

 mer) 2. 



Ic. Stem-leaves ovate to lanceolate, 2 cm. wide or more (flowers blue, 

 in a terminal spike or raceme, summer) (Bellflower) 4. 



2a. Stem and leaves glabrous (or rarely pubescent) (1 6 dm. 

 high; flowers blue) Harebell, Campanula rotundifolia. 



2b. Stem and leaves rough with reflexed bristles (marsh plants, 

 with weak slender -stems 3 10 dm. long; flowers white or pale- 

 blue) (Marsh Bellflower) 3. 



3a. Corolla 5 8 mm. long Marsh Bellflower, Campanula aparinoides. 

 3b. Corolla 1012 mm. long Marsh Bellflower, Campanula uliginosa. 



4a. Corolla rotate; flowers in spikes (6 15 dm. high) 



Bellflower, Campanula americana, 



4b. Corolla bell-shape; flowers in one-sided racemes (4 10 dm. 

 high) Bellflower, Campanula rapunculoides. 



