II 



bright red; calyx lobes short aiul obi use; fruit black, shiiiinj^, 

 6-8 mm. thick, ripening early in June. This form differs from 

 the type essentially in its uniformly small and bright colored 

 corolla. — Mountain slopes at head of Polk Creek, Montgomery 

 County, Arkansas, where quite common in mixed oak and pine 

 wood. W. W. A. May 2, 1924. 



Vaccinium viride, sp. nov. — A shrub 2-3 dm. high, with green 

 or reddish-tinged ascending branches and slender green pubes- 

 cent twigs, or often merely pubescent on lines. Leaves thin 

 but firm, bright yellowish green on both sides, glabrous above 

 except for the puberulent midrib; glabrous below except for the 

 pubescent midrib and sometimes scattered spreading hairs near 

 the base, ovate, oblong, or oblong-ovate, 2.5 to 5.2 cm. long, 

 1. 1-2. 6 cm. wide, taper-pointed and mucronate, narrowed at 

 the often broad base, finely ciliate-serrulate; petiole about i 

 mm. long, pubescent. Flowers, appearing about the middle of 

 April when the leaves are about half grown in clusters of 4 to 8, 

 are urceolate or short cylindrical, 5 to 7 mm. long, cream colored, 

 striped with red or reddish. Fruit, 7-9 mm. thick, glossy black, 

 ripens the middle of June. 



Prevailingly on dry sites in sunny oak wood, Montgomery 

 County, Ark. Type from mountains near head of Polk Creek. 

 W. W. A. May 2, 1924. It is possible that this is the plant 

 which has been referred to V. simulatiim Small. But V. simula- 

 tum differs in having much larger leaves which are pale and 

 glaucescent below, in its larger flowers, glaucous fruit and dif- 

 ferent habit, being a tree-like shrub 2 to 4 m. high. 



Washington, D. C. 



A NEW WHITLOW-WORT FROM FLORIDA 



John K. Small 



The two plant regions in Florida superficially most un- 

 promising-looking are the Everglade Ke^^s, composed of solid 

 oolitic limestone, and the ancient dunes of the lake-region, com- 

 posed of seemingly barren loose white siliceous sand. Yet, the 

 floristics of these wholly unrelated areas are extremely inter- 

 esting, and endemic genera and species are included in the 

 plant-associations. The following is an additional herb to the 

 flora of the lake-region. 



Nyachia Small, gen. nov. Annual wirey-branched herb. 

 Leaves opposite, chartaceous: blades broad but revolute, 

 entire. Stipules minute, fimbriate. Flowers very small, poly- 



