THE AMERICAN BOTANIST. 75 



son of pilosa, the deep pink flower-clusters of the meadow phlox 

 {Phlox glaberrima) begin to appear in low grounds. This is 

 easily our handsomest phlox with its profusion of large flowers 

 of deepest pink borne at the top of smooth wandlike stems that 

 rise above the grasses amidst which it grows. 



Until recently this was supposed to complete the list of the 

 native phloxes of this region, notwithstanding the fact that 

 another species has always been present, has frequently been 

 collected by botanists and has been in cultivation for some time. 

 This species has long been confused with pilosa and, indeed, 

 when the plant is studied in the herbarium instead of in the 

 field it is so nearly like it as to deceive the very elect. Never- 

 theless it has characteristics so distinct, albeit they are not of a 

 structural nature, that we unhesitatingly assert its distincness 

 as 



PHLOX ARGILLACEA N. S. 



Stems erect, tufted, downy, 18-30 inches high, usually 

 branched above. Leaves light green, downy, especially on the 

 margins, narrowly lanceolate or linear, long pointed, with mar- 

 gins inclined to be revolute, sessile. Flower cluster rather 

 open, many flowered forming a level cyme. Flowers short- 

 pedicelled. Calyx and bracts, glandular hispid the long and 

 very attenuate calyx tips especially so. Tube of the corolla, 

 half an inch or more long, purplish and pubescent on the out- 

 side. Limb white or occasionally pale lilac about half an 

 inch in diameter, its divisions entire, round ended, narrowed 

 below with margins usually revolute, each marked near the 

 throat with two linear, pale lilac nectar guides. Young seed 

 pods viscid. Flowers fragrant. Found in shaded or exposed 

 clay or sandy soil seeming to prefer the former. Oak Forest, 

 Cook County, Illinois and Liverpool, Lake County, Indiana. 

 Flowering season from about June 1st to August 1st. Type in 

 the herbarium of J. H. Ferriss. 



Although, as we have indicated, the structure of this spe- 

 cies is very similar to that of pilosa^anyonQ familiar with the 



