182 CAMPANULACEAE 



3. MICRAMPELIS Raf. WILD BALSAM APPLE. 



Ours with corymbose-paniculate staminate flowers and usually solitary 

 pistillate flowers. Fruit spiny, dehiscent at summit. Calyx and corolla 

 each with 5-6 divisions. Stamens three. 



1. M. lobata (Michx.) Greene. High-climbing, nearly glabrous: 

 leaves sharply 5-lobed, denticulate. Along streams, especially along the 

 Missouri River. Not uncommon. July-October. 



FAMILY 122. CAMPANULACEAE Juss. 



Herbs wiih alternate, non-stipulate leaves and perfect flowers. Calyx 

 and corolla each with five segments, the latter regular or irregular. 

 Stamens five, inserted on the corolla, and alternate with its lobes, the 

 anthers separate or more or less cohering. Ovary inferior, 2-3-celled, 

 many-ovuled. Style solitary. Stigma 2-5-lobed. Fruit a capsule. 



Corolla regular ; anthers separate. 



Style long-exserted, declined and curved upward. 1. CAMPANULA. 



Style straight. 2. SPECULARIA. 



Corolla irregular ; anthers connate. 3. LOBELIA. 



1. CAMPANULA L. 



Capsule opening by 3-5 small valves. Flowers all complete. Ovary 

 3-celled. (Our species differs from typical species of Campanula in the 

 declined style and rotate corolla and probably represents a distinct ge- 

 neric type, which is more closely related to Specularia than to Cam- 

 panula. ) 



1. C. Americana L. BELL FLOWER. Annual, 2-7 high, pubescent : 

 leaves ovate-lanceolate, serrate, petioled : flowers in dense terminal 

 spikes : corolla rotate, blue, V broad. Common in rich woods. June- 

 August. 



2. SPECULARIA Heist. VENUS' LOOKING GLASS. 



Differing from Campanula (as represented with us) chiefly in the earlier 

 flowers being cleistogamous. Flowers bluish-purple, axillary. 



Leaves suborbicular. 1. S. perfoliata. 



Leaves lanceolate. 2. S. leptocarpa. 



1. S. perfoliata (L.) A. DC. 6'-24' high, hirsute: leaves cordate- 

 clasping, crenate-dentate : capsule oblong, opening near the middle. 

 Common in dry soil. May- August. 



2. S. leptocarpa (Nutt. ) A. Gray. 6 / -24 / high, roughish : leaves ses- 

 sile, remotely serrate : capsule linear-cylindric, opening near the top. 

 Locally common in barrens from Brush Creek to Pixleys and southward. 

 May-July. 



3. LOBELIA L. 



Corolla 2-lipped, the upper lip with 2 erect lobes, the lower 3-cleft, 

 spreading. Some of the anthers bearded, unequal. Capsule 2-celled. 



