502 PROCEEDINGS OF THE ACADEMY OF [PaRT III 



Texas. Angelina: , Reverchon 3931 (Y). Dewitt: Cuero, 



Howell 318 (Y). Harris: Houston, Hall 406 (U). Kaufman: 

 Terrell, Tyler (U). San Augustine: San Augustine, Crocket (U). 

 Travis: Austin, York (T). Victoria: Victoria, Lewton 62 (U). 



la. Linaria canadensis texana (Scheele) Pennell, comb. aov. 



Linaria texana Scheele, in Linnaea 21: 4761. 1848. "Zwischen Houston 

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



Here distinguished primarily by roughness of seeds, which how- 

 ever varies from a few roughenings on the side to densely tuber- 

 culate. The wealth of Texan material at my disposal shows that 

 each character of the contrasts previously outlined (in Contrib. 

 U. S. Nat. Herb. 20: 323. 1920, and Proc. Acad. Nat. Sci. Phila. 

 71 : 258. 1920) between this and Linaria canadensis breaks down 

 in numerous instances through the area where the two overlap. 

 Consequently it seems more rational to consider texana a variety, 

 its range and relation to the species roughly paralleling that of 

 • Veronica peregrina xalaperisis (H. B. K.) Pennell. For an ex- 

 cellent illustration of Linaria candensis texana see the Botanical 

 Magazine 63: pi. 3473. 1836. 



Open sand or sandy loam, frequently or usually a weed, common 

 through the Coastal Plain, chiefly westward; occasional and prob- 

 ably introduced inland. Ranges widely through western North 

 America, and into South America. 



Arkansas. Benton: , Plank (Y). Columbia: Taylor, Hunt 



10 (Y). Nevada: Prescott, Bush 555 (U). 



Oklahoma. Kingfisher: Huntsville; Kingfisher, Stevens 189 

 (U). Oklahoma: Bethany, Pennell 10574 (H, O, U, Y). Payne: 

 Stillwater, Learn (Y). Wagoner: Wagoner, Pennell 10614 (M, Y). 

 Washita: Bessie, Stevens 961 (U). Woods: Alva, Stevens 3042 

 (U). 



Louisiana. Acadia: Crowley, Pennell 10204 (Y). Catahoula: 

 Sicily Id., Peck (A). Rapides: Alexandria, Ball 416 (U, Y). 

 Terrebonne: E. C. Wurzlow (Y). 



Texas. Austin: San Felipe, Pennell 10293 (K, T, Y); WalHs, 

 Pennell 10270 (A, Y). Bastrop: Smith ville, Pilsbry (A). Bexar: 

 San Antonio: Larrabee (U). Duval: San Diego, Croft (U, Y). 

 Fayette: Colony, Crawford (U). Gillespie: Dry Branch, Jermy 

 151 (U). Harris: Houston, Bush 51 (U). Henderson: Athens, 

 Young (T). Kaufman: Terrell, Tyler (U). Nueces: Corpus 

 Christi, Heller (Y). Robertson: Calvert, Merrill (Y). Tarrant: 



