1919.] NATURAL SCIENCES OF PHILADELPHIA. 259 



Granite of the Carolinas and central Georgia, and on other sandy- 

 soils, where probabh' introduced, inland to the southern Appala- 

 chians. Ranges northward to Massachusetts. Westward and inland 

 at occasional stations where probably introduced. 



Flowering from March to May, and soon ripening fruit. Corolla 

 purplish-blue, the palate pale to white. Occasionally a pink-flow- 

 ered form occurs. 



Pennell (Georgia)— 9502. (Florida)— 9533, 9536, 9577, 9701. 



3. Linaria texana Scheele. 



Linaria texana Scheele, Linnaea 21: 761. 1848. "Zwischen Houston und 

 Austin [Texas] haufig: Romer." Description sufficiently distinctive. 



Open sand or sandy loam, frequently a weed, in the Coastal Plain 

 from South Carolina to southern Mississippi, probably more com- 

 mon westward. Ranges widely through western North America, 

 and into South America. Probably Linaria canadensis is a deriva- 

 tive of this. 



Flowering from March to May and soon ripening fruit. Corolla 

 pale-blue, reticulate-veined with slightly darker color, essentially as 

 in L. canadensis but larger throughout. 



Pennell (Georgia)— 9512, 9521. (Alabama)— 9724, 9727. 



4. Linaria linaria (L.) Karst. 



Linaria vulgaris Mill. 



Loam or sandy soil, fields and waste ground, a weed; mostlj' above 

 the Fall-line, probably common northward. Naturalized from 

 Eurasia. 



25. KICKXIA Dumortier. 

 Kickxia Dum., Fl. Belg. 35. 1827. 

 Type species. Antirrhinum elatine L., of Europe. 



Leaf-blades rounded-cordate at base. Calyx-lobes ovate. 



1. K. spuria. 

 Leaf-blades hastate. Calyx-lobes lanceolate. 2. K. elatine. 



1. Kickxia spuria (L.) Dumort. 



Waste places and roadsides, occasional eastward. Naturahzed 

 from Eurasia. 



2. Kickxia elatine (L.) Dumort. 



Waste places, roadsides and stone-walls, occasional eastward. 

 Naturalized from Eurasia. 



26. VERONICASTRUM Heister. 

 Veronicastrum Heist.; Fabr., Enum. Meth. PI. Hort. Helmstad. 111. 1759. 



Type species, Veronica virginica L. 



