SCROPHULARIACEAE 553 



1. M. ringens L. In swamps and along streams: N. S. to Va., 



Tenn., Neb. and Tex. 



Common throughout the range, except in the pine-barrens, there 

 wanting. 



2. M. alatus Soland. In swamps: Ont. to Conn., III., Ga., Kan. 



and Tex. 



Conn. Very rare in New London, Hartford and Fairfield counties. 



N. Y. Known definitely only on Staten Island, in the Bronx, 



and near New Baltimore, Greene Co. 

 N. J. Known definitely only from Salem, Gloucester, Camden, 



Burlington, Ocean, Monmouth, Mercer and Hunterdon counties, 



thence scattering northward, but nowhere common; not in the 



pine-barrens. 

 Pa. Northampton, Bucks, Delaware and Chester counties. 



Distribution scattered and little understood. 



3. M. moschatus Dougl. In wet places: N. S. and Ont. to N. Y. 



Adventive from the Pacific Coast. 



Rare as an occasional adventive in parts of our range; per- 

 haps not persistent. 



4. M. Langsdorrfii Donn. Rare as an occasional adventive from 



the West in Connecticut and New York. 



11. Conobea Aubl. 

 1. C. multifida (Michx.) Benth. Along streams and rivers : Ohio 

 to Iowa, Kan., Ky. and Tex. Introduced along the Delaware 

 below Philadelphia. 



Known definitely only from near Philadelphia as a weed. 



12. Gratiola L. 



Plants glabrous or glandular; anther-sacs transverse, separated. 

 Sterile filaments minute or none. 



Glandular-puberulent; flowers 8-10 mm. long, capsule 



ovoid. I. G virginiana. 



Glabrous; flowers 14 mm. long; capsule globose. 2. G. sphaerocarpa. 



Sterile filaments 2, slender, capitate at the summit. 3. G. aurea. 



Plants hirsute; anther-sacs parallel, contiguous. 4. G. pilosa. 



i. G. virginiana L. In wet places: Que. to B. Col., Mass., Fla., 

 Tex. and Cal. 



Common throughout the range except in the pine-barrens and the 

 region east and south of them, there rare or wanting; always in- 

 creasing northward. 



