The Flora of the Cayuga Lake Basin 365 



4. M. arvensis L. Wild Mint. 



Wet sandy, gravelly, or mucky places about the borders of swamps and on 

 gravelly shores, without much reference to lime content; scarce. July-Sept. 



Larch Meadow; n. side of Six Mile Creek ravine; lake shore, Renwick; McKin- 

 neys ; Townley Swamp; Salmon Creek; Sheldrake; Big Gully. 



Newf. to n. N. Y. and Nebr., southw. to Pa. (?) and Colo. Found also in 

 Eurasia. 



Passing- insensibly into the following extremes (nos. 4a and 4b). 



4a. M. arvensis L., var. canadensis (L.) Briq. 



In situations similar to the preceding; much more common. July-Sept, 

 Newf.- to B. C, southw. to Va. and N. Mex., including the Atlantic Coastal 

 Plain. 



4b. M. arvensis L., var. glabrata (Benth.) Fernald. 



In situations similar to the preceding; scarce. July-Sept. 



Summit Marsh; woods below Lucifer Falls; Renwick; Dryden Lake; Cortland 

 marl ponds; Hibiscus Point; Canoga Marshes. 



Newf. to B. C, southw. to n. N. E., n. Pa., Mo., N. Mex., and Calif.; apparently 

 less frequent than the preceding on the Atlantic Coastal Plain. 



22. Collinsonia L. 

 1. C. canadensis L. Horse Balm. Richweed. 



Damp rich woodlands and on shales in ravines, showing no particular lime 

 preference; uncommon. July-Aug. 



Coy Glen ; n. shore of Beebe Lake ; Forest Home Drive ; woods, Mud Creek, 

 Freeville ; region of McLean Bogs; Paine Creek; and elsewhere. 



W. Que. to Wis., Southw. to Fla., Mo., and Kans. ; infrequent on the Coastal Plain. 



111. SOLANACEAE (Nightshade Family) 31 



a. Corolla rotate; anthers connivent, opening by terminal pores. 1. Solanum 

 a. Corolla funnel-form or campanulate ; anthers not connivent, opening longitu- 

 dinally. 

 b. Calyx inflated, especially in fruit. 

 c. Corolla yellow or greenish; calyx 5-cleft; ovary 2-celled. 2. Physalis 

 c. Corolla blue; calyx 5-parted; ovary 3-5-celled. [Nicandra] 



b. Calyx not inflated. 



c. Corolla and stamens somewhat irregular, the corolla strongly reticulate with 

 purple veins; fruit a circumscissile capsule. [Hyoscyamus] 



c. Corolla and stamens regular, the corolla not reticulate. 

 d. Plant reclining or climbing; corolla small; fruit a berry. 



3. Lycium 

 d. Plant erect; corolla large, 5-15 cm. long; fruit a prickly capsule. 



4. Datura 



1. Solanum (Tourn.) L. 



a. Corolla 3-8 mm. in diam., white. 1. S. nigrum 



a. Corolla 15-25 mm. in diam. 



b. Plant prickly, erect ; corolla about 25 mm. in diam. 



C. Berry not inclosed by the calyx; leaves coarsely and rather acutely lobed ; 

 flowers lavender or white. 2. ,S\ carolincnse 



31 Lycopersicon esculentum Mill, (tomato) and Solatium tuberosum L. (potato) spring up occasion- 

 ally on garbage dumps and along the shore of Cayuga Lake, but are not established. 



