﻿Small: Botany of Southeastern United States 617 



The species was also collected in Arkansas many years ago by 



Dr. Leavenworth. 



GAURA FIL1F0RMIS. 



Perennial, finely canescent. 



5 



tall, widely and often diffusely branched above ; branches very 

 slender, sometimes nearly filiform : leaves numerous but not con- 

 spicuously so ; blades linear to narrowly linear lanceolate, 2-10 cm. 

 long, or shorter on the branches, acute or acuminate, rather sharply 

 but remotely serrate or entire towards the inflorescence : spikes 

 elongated and interrupted : calyx puberulent ; tube 7-8 mm. long ; 

 segments longer than the tube : petals pink-purple, oblong with a 

 narrowed base, about 7 mm. long, obtuse : filaments 5-6 mm. 

 long : anthers 4 mm. high : style surpassing the filaments : fruit 



narrowly elliptic, 6 mm. long, sessile, canescent, faces slightly 

 ridged. 



In sandy banks, Arkansas and Louisiana. Summer and fall. 



Related to Gaura angustifolia, but very much larger, commonly 

 reaching a height of two and' one half meters and copiously and 

 diffusely branched throughout. The narrower acuminate almost 

 entire leaf-blades, the closer pubescence, the pink-purple corollas 

 and the smaller fruit all serve to separate the newly described 

 species from Gaura angustifolia, 



■ 



The specimens on which the species is based were collected by 

 Mr. A. A. Heller, near Texarkana, Miller County, Arkansas, 

 August, 1898, no. 4138. The species is also represented in the 

 Herbarium of Columbia University by a specimen collected many 

 years ago in Louisiana, the label accompanying the specimen con- 

 tains the following record: "Prairies. Fel[iciana] and Op- 

 [elousas] . Sept. 5th. Wm. C[arpenter]. 



Verbena Ha lei. 



Annual, slender. Stems erect, 2-9 dm. tall, 4-angled, gla- 

 brous or stngillose above, branching near the top or rarely at the 

 base: leaves strigillose, 3-10 cm. long; blades various, those of 

 the basal and lower stem leaves oblong to ovate, irregularly 

 toothed and incised, long-petioled, those of middle part of stem 

 commonly broader, 1-2-pinnatifid, shorter petioled : upper ones 

 sparingly toothed or entire : spikes slender ; bracts shorter than 

 the calyx, appressed :. calyx becoming 3-3.5 mm. long, strigil- 

 lose; teeth mucronate: corolla blue ; tube about 3 mm. long ; 

 limb 6-7 mm. broad, segments notched : nutlets linear-oblong, 



about 2.5 mm. long. 



