1921] NATURAL SCIENCES OF PHILADELPHIA. 505 



passing into V. peregrina L. Wide-spread through western North 

 and South America. 



Arkansas. FrankUn: Ozark, Pennell 10618 (Y). 



Oklahoma. Oklahoma, Bethany, Pennell 10580 (O, Y). 



Texas. Austin: Wallis, Pennell 10281 (U, Y). Bexar: , 



Jermy (Y). Comal: New Braunfels, Lindheimer 1060 (T, Y). 

 Harris: Houston, Pennell 10248 (Y), 10255 (T, Y). Hays: San 

 Marcos, Stanfield (Y). Kerr: Kerrville, Pennell 10391 (A, H, Y). 

 Tarrant: Fort Worth, Ruth 100 (Y). Travis: Austin, Pennell 

 10446 (Y). 



2. Veronica arvensis L. 



Corolla with all lobes deep sky-blue, whitish at base, veined with 

 deeper skj^-blue. 



Fields and cultivated soil, especially where moist, seen from 

 Arkansas and Oklahoma. Naturalized from Eurasia. 



3. Veronica polita Fries. 



Roadsides and gardens, seen from Louisiana and Texas. Nat- 

 urahzed from Eurasia. 



4. Veronica persica Poir. 



Corolla with posterior lobes sky-blue, anterior pale-blue, all 

 whitish at base, and veined with deeper blue lines. 



Fields and roadsides, seen from Texas. Naturalized from 

 Eurasia. 



5. Veronica scutellata L. 



Waste ground, at Pineville, Rapides Parish, Louisiana, collected 

 by R. S. Cocks. Surely adventive from the northern United States 

 or Eurasia. 



22. DASISTOMA Raflnesque. 

 Dasistoma Raf., Journ. de Phys. 88: 89. 1819. 

 Type species, D. aurea Raf., of Kentucky. 



1. Dasistoma macrophylla (Nutt.) Raf. 



Seyrmria macrophylla Nutt., Gen. N. Am. PI. 2:49. ISlS. "Hab. In shady 

 alluvial soils of the banks of the Little Miami, near the town of Lebanon," 

 Ohio, T. Nuttall. Specimen in Kew Herbarium labeled ''Ohio, Nuttall 

 misit Mart. 1824," maj^ stand as the type; this seen. 



Dasistoma macrophylla (Xutt.) Raf., New Fl. Am. 2: 67. 1837. 



Brachygyne macrophylla (Xutt.) SmaU, Fl. S. E. Un. St. 1073, 1338. 1903. 

 Type of genus, Brachygyne Small. 



Corolla yellow, externally tinged or marked with purple-red. 



Flowering in July and August and soon ripening fruit. 



