566 ACANTHACEAE 



4. Leptamnium Raf. 

 1. L. virginianum (L.) Raf. In beech woods: N. B. to Fla., 

 Ont., Mich., Mo. and La. 



Common throughout the range, except in the pine-barrens and at 

 Cape May, there wanting, apparently always parasitic on the beech. 



BIGNONIACEAE 



Leaves compound; a vine. 1. Bignonia. 



Leaves simple; a tree. 2. Catalpa. 



i. Bignonia L. 

 1. B. radicans L. {Tecoma radicans (L.) J. St. Hil.). In moist 

 woods and thickets: N. J. and Pa., to Fla., Tex., Kan. and 111. 

 N.J. Monmouth and Camden counties, increasing southward, but 



not in the pine-barrens. 

 Pa. Bucks Co. 



The numerous records further north are based on specimens of cultivated plants or 

 those escaped from cultivation. 



2. Catalpa Scop. 

 1. C. Catalpa (L.) Karst. In woods in the Gulf States: escape 

 from cultivation in Pa. and N. Y. 



Not uncommon as an escape from very frequent cultivation, in 

 most parts of our range. 



Martynia louisiana Mill, of the Martyniaceae and Sesamum indicum L. of the 

 Pedaliaceae have both been collected as waifs. Neither is certainly established in the 

 range. 



ACANTHACEAE 



Corolla convolute in the bud, nearly regular; stamens 4. I. Ruellia. 



Corolla imbricated in the bud, strongly 2-lipped; stamens 2. 2. Dianthera. 



i. Ruellia [Plum.] L. 



Calyx-segments linear-lanceolate, scarcely exceeding the capsule. I. R. strepens. 



Calyx-segments filiform-linear, exceeding the capsule. 2. R. parviflora. 



1. R. strepens L. In dry woods: Pa. to Wise, Fla. and Tex. 



Pa. Known only from near Easton, Northampton Co.; recorded 

 from Atlantic Co., N. J., probably erroneously. 



2. R. parviflora (Nees) Britton. In dry soil: N. J. and Pa. to 



Fla., Mich., Kan. and La. 



N.J. Known only from Cape May Co. 



A very rare and local species, apparently reaching its most 

 northerly station in our range; has been referred to R. ciliosa Pursh. 



