1919.] NATURAL SCIENCES OF PHILADELPHIA. 289 



Pennell (North Carolina)— 4911. (South Carohna)— 4874, 4882. 

 (Georgia)-^730, 4787, 4812. (Florida)— 4704, 4722, 9535, 9645, 

 9674. (Alabama)— 4473. (Louisiana)— 4190, 4296. 



35. SCHWALBEA Linne. 

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



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



1. Schwalbea australis Pennell, sp. nov. 



Stem 4-8 dm. tall, finely pubescent with short ascending or up- 

 curved hairs. Leaves elliptic-oval, 3-^ cm. long, 12-18 mm. wide, 

 acutish, obscurely reticulate, minutely strigose. Pedicels becoming 

 4-5 mm. long in fruit. Calyx 10-ridged, its lobes all acute, the 

 posterior linear, 7-10 mm. long, postero-lateral lobes 19-20 mm. long, 

 their free portion 6-7 mm. long, the anterior lobes 20-22 mm. long, 

 united to within 1-2 mm. of their apices. Corolla about 30 mm. 

 long, slender, the lips 10-11 mm. long, the posterior narrowly arched, 

 strongly pubescent externally, the anterior densely lanose within 

 over the bases of the three short lobes. Capsule at least 10 mm. 

 long, not seen mature. 



Type, damp pine barrens near Seville, Volusia Co., Florida, col- 

 lected in flower May 10, 1900, A. H. Curtiss 6742; in herbarium of 

 the New York Botanical Garden. 



Distinguished from the northern S. americana by the following 

 characters : 



Pubescence of stem, pedicels and calyx consisting of recurved hairs. 

 Leaves elliptic-lanceolate, rarely over 10 mm. wide, usually 

 evidently veined. Anterior calyx-lobes obtuse. 



S. americana. 

 Pubescence of stem, pedicels and calyx consisting of upcurved, 

 usually shorter hairs. Leaves elliptic-oval, usually about 15 

 mm. wide, usually more obscurely veined. Anterior calyx- 

 lobes acute or acutish. S. australis. 

 Sandy soil, rather moist, oak-land and pine-land, in the Coastal 

 Plain from South Carolina to central Florida and Louisiana; inland 

 apparently occasional, seen only from ''sandy humid places in the 

 Cumberland Mountains between Montgomery and Jamestown," 

 Tennessee, collected by Rugel in 1841. 



Flowering from April to June. Not seen growing. 



36. CASTILLEJA Mutis. 

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



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



