1919.] NATURAL SCIENCES OF PHILADELPHIA. 235 



1. Mimulus alatus Ait. 



Minmlus alatus Ait., Hort. Kew. 2: 361. 1789. "Nat. of North America. 

 Introd. 1783, by Mr. William Malcolm." 



Wet woods and shaded river-bottoms, loam soil, throughout the 

 area above the Fall line, but not extending into the higher Appa- 

 lachians; and along river-bottoms in the Coastal Plain. Ranges 

 from Connecticut to Ontario and Kansas, south to northern Florida 

 (along the Apalachicola River), Mississippi and Oklahoma. 



Flowering from late July to late August, probably ripening fruit 

 in September and October. Corolla lavender pink, within throat 

 essentially as in M. ringens but the spots are smaller and the coloring 

 fainter. 



2. Mimulus minthodes Greene. 



Mimulus minthodes Greene. Leaflets Bot. Obs. & Crit. 2:1. 1909. "The 

 type specimens are in U. S. Herb, and were collected at Birmingham, 

 Ala., Aug., 1888." Type seen in United States National Herbarimn. 



Meadows, northern Georgia and northern Alabama; Piedmont 



region. 



Not seen growing. Possibly not distinct from M. ringens. 



3. Mimulus ringens L. 



Mimulus ringens L., Sp. PI. 634. 1753. "Habitat in Virginia, Canada 

 . . . Hort. ups. 176. t. 2." In the Hortus Upsalensis 176, pl. 1, 1748, 

 Linne described and figured our plant. 



Swales and along streams in woodland, in loam, through' the area 

 above the fall line, reaching at least to 4400 feet altitude in the 

 southern Appalachians, mostly more common northward ; apparently 

 not descending into the Coastal Plain. Ranges from Nova Scotia 

 to Minnesota, south to upper South Carolina, northern Florida^ and 

 Kansas. 



Flowering from mid July to late August, fruiting in September 

 and October. Corolla lavender, paler externally, within on anterior 

 side two ridges which distally bear purple-red spots and proximally 

 two yellow areas mottled with faint brownish patches. 



5. MECARDONIA Ruiz and Pavon. 

 Mecardonia R. and P., Syst. Veg. Fl. Per. et Chil. 164. 1798. 

 Type species, M. ovata Ruiz & Pavon, of Peru. 



Corolla white, its posterior lobes united ^-f their length. Outer 

 sepals lanceolate, rarely more than twice width of inner. Leaf- 

 blades prevailingly lanceolate, conspicuously cuneate at base. 

 Erect or somewhat diffuse. 



^ Reported from Quincy, Florida, by A. W. Chapman in West. Jour. Med. & 

 Surg. 3: 473. 1845. 



