528 PROCEEDINGS OF THE ACADEMY OF [PaRT III 



Arkansas. Sebastian: Fort Smith, Bigelow (U, Y). 



Oklahoma. Alfalfa: Cherokee [Outlet], Carleton 477 (U). 



Bryon: Colberts, Sheldon (Y). Caddo (?): , E. Palmer 



221 (U, Y). Payne: Ingalls, Waugh 18 (U). 



Louisiana. , Hale (Y). 



Texas. Jasper: Buna, Pennell 5587 (P). 



2. Buchnera elongata obtusa Pennell. 



Buchnera elongata obtusa Pennell, in Proc. Acad. Nat. Sci. Phila. 71:288, 

 1920. "Type, open sandy pineland, 1-2 miles north of Abita Springs, 

 St. Tammany Parish, Louisiana, collected in flower and fruit August 14, 

 1912, F. W. Pennell 4190, in Herb. New York Botanical Garden." 



Corolla purplish-blue or violet-purplish throughout. Flowering 

 from May to October, and soon ripening fruit. 



Sandy soil, long-leaf pineland and adjacent coastal prairie of 

 southern Louisiana and southeastern Texas; westward to oak-woods 

 of Colorado county, Texas. Ranges eastward in the Coastal Plain 

 to North Carolina. 



Louisiana. Calcasieu: Lake Charles, Allison 251 (U, Y). 

 Jeff Davis: Jennings, Pennell 10207 (L, M, Y). Rapides: Alexan- 

 dria, Hale (Y). 



Texas. Colorado: Sheridan, Pennell 5521 (P, Y). Hardin: 

 Silsbee, Pennell 5590 (P, Y). Waller: Hempstead, Hall 417 (U, Y). 

 Wichita: Burkburnett, Tharp 604 (Y.) 



28. SCHWALBEA Linng. 

 Schwalbea L., Sp. PI. 606. 1753. 



Type species, S. americana L., of Virginia. 



1. Schwalbea australis Pennell. 



Schwalbea australis Pennell, in Proc. Acad. Nat. Sci. Phila. 71:289.1920. 

 "Type, damp pine barrens near Seville, Volusia County, Florida, collect- 

 ed in flower May 10, 1900, A. H. Curtiss 6742; in Herb. New York Botani- 

 cal Garden." 



Sandy soil, rather moist, Oakland and pineland, in central 

 Louisiana. -Ranges through the Coastal Plain from South CaroHna 

 to central Florida and Louisiana. Flowering in May. 



Louisiana. Rapides: Alexandria, Hale (Y), Cocks (L). 



29. CASTILLEJA Mutis. 

 Castilleja Mutis; L. f., Suppl. 293. 1781. 



Type species, C. fissifolia L. f., of Colombia. 



Root perennial. Sepals not expanding distally. Seeds with 

 heavier reticulations enclosing relatively hexagonal areas. 

 Stems white-tomentose or -lanate. 



