1919.] NATURAL SCIENCES OF PHILADELPHIA. 237 



Flowering from May to September, and soon ripening fruit. 

 Corolla white, within with longitudinal pink veins on the posterior 

 side. 



Pennell (Georgia)— 4088. (Florida)— 9658. (Louisiana)— 4283. 



la. Mecardonia acuminata peninsularis Pennell, var. nov. 



Plants much branched from the base, diffusely spreading and 

 ascending. Main stem-leaves oblanceolate, long-cuneate . at base, 

 1.3-2 cm. long. Outer sepals 5-6 mm. long. Corolla 7-8 mm. 

 long. 



Type, in hammocks and pine-lands, Black Point, below Cutler, 

 Florida, collected in fruit and late flower, November 13, 1903, J. 

 K. Small & J. J. Carter 824, in Herb. New York Botanical Gar- 

 den; isotype in Herb. Academy of Natural Sciences of Philadelphia. 



Moist places, pine-land, hammocks and ev'erglades, southern 

 Florida. 



Pennell (Florida)— 9542. 

 lb. Mecardonia acuminata brevifolia Pennell, var. nov. 



Plants apparently laxly ascending, slightly branched, 1-4 dm. 

 tall. Main stem-leaves ovate, cuneate at base, 1-1.7 cm. long. 

 Outer sepals 5-6 mm. long. Corolla 7-8 mm. long. 



Type, Gulfport, Mississippi, collected in flower September 8, 1900, 

 F. E. Lloyd & S. M. Tracy 94; in Herb. New York Botanical Gar- 

 den. 



Moist places in longleaf pine-land, southern Georgia and northern 

 Florida to southern Texas. 



2. Mecardonia procumbens (Mill.) Small. 



Erinus procmnbens Mill., Gard. Diet. ed. VIII. n. 6. 1768. "... 

 Houst. MSS." Type not known to exist, but description appears to be 

 of the plant here considered. Houston collected in tropical America. 



Mecardonia procumhens (Mill.) Small, Fl. S. E. Un. St. 1065, 1338. 1903. 



Moist soil, loam or sand, meadows and edges of hammocks, sub- 

 tropical Florida.^ A wide-spread weed of lowland Tropical America, 

 perhaps introduced into our flora. 



Flowering and fruiting probably throughout the year. Corolla 

 externally greenish-yellow, within on the lobes lemon-yellow, and 

 with more or less evident longitudinal dark veins on the posterior 

 side. 



Pennell (Florida)— 9549. 



^Reported as "Monniera chamaedryoides peduncularis" by Mohr, Contrib. 

 Nat. Herb. 6: 721. 1901, as occurring in Alabama from "Upper Division Coast 

 Pine belt to Coast Plain." Surely confused with a form of Mecardonia acumi- 

 nata. 



