1919.] NATURAL SCIENCES OF PHILADELPHIA. 235 
1. Mimulus alatus Ait. 
Mimulus 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 fg are in U. 8S. Herb. and were collected at Birmingham, 
Ala., Aug., 1888.”’ Type seen in United States National Herbarium. 
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. Pl. 634. 1753. “Habitat in Virginia, Canada 
t. 2.’ In the Hortus Upsalensis 176, pl. 1, 1748, 
Ho _ ups. 6. t 
Linné ‘described and figured our plant 
Swales and along streams in wandintid, 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 Mecho its posterior lobes united }-} their length. Outer 
sepals lanceolate, rarely more than twice ‘width of inner. Leaf- 
blades ereegiinaly lanceolate, conspicuously cuneate at base. 
Erect or somewhat diffuse. 
* Reported from Quincy, Florida, by A. W. Chapman in West. Jour. Med. & 
Surg. 3: 473. . 
