782 POLEMONIACEAE Phlox 



Scott McCoy in Benton and Lake Counties. The range of the variety is 

 in the prairies of the Upper Mississippi Basin to Manitoba. 



7b. Phlox pilosa var. amplexicaulis (Raf.) Wherry. This form of the 

 species is rare in Indiana. We have it under cultivation in neutral soil 

 and it is a very thrifty and a highly ornamental plant. It forms large mats 

 and has a long flowering period. 



This is a variety with the inflorescence densely clothed with long, coarse 

 hairs and rather broad calyx lobes. So far, it has been found in only two 

 counties. In Spencer County it was found in hard, white clay soil in low, 

 open, white and post oak woods along Little Pigeon Creek. In Perry 

 County it was on an open wooded slope with beech, and it was abundant 

 along this woods in an old fallow field. This variety is rare within its 

 range. 



Phlox argillacea Clute & Ferriss. The authors of this species say that 

 it is distinguished by its "lighter green leaves, greater height, less com- 

 pact flower clusters, restricted habitat, and, above all, pale flowers and 

 later and longer season of bloom." Wherry refers this to a form of the 

 variable species, Phlox pilosa, and says "the only way they can be dis- 

 tinguished is by the greater vigor of the former, a difference of horti- 

 cultural but not of taxonomic significance." 



S. Ind., Tenn., and La. to Tex. 



8. Phlox divaricata L. (Wherry. Bartonia 12: 25-35. 1931.) BLUE 

 Phlox. Map 1688. The flowers of this species vary greatly in intensity of 

 color, length of corolla tube, and the form of the corolla lobes. The apical 

 end of the lobes is usually marked with a sinus 1-3 mm deep but there are 

 plants with the lobes rounded or rounded and mucronate. This round- 

 lobed form, var. Laphami Wood, is restricted mostly to our western coun- 

 ties. The largest specimens of this species belong to this form and are 

 found in low, wet woods and wet, alluvial soil which is usually slightly 

 acid. 



Albino forms are not infrequent. We have had an albino form in culti- 

 vation for about 15 years and it remains true. 



Frequent in most moist woods throughout the state. It occurs in every 

 county of the state although it may not be native in Benton County. It is a 

 plant of the woodland and is rarely found in the open. It prefers a neutral 

 soil, shuns sandy habitats, and is rarely found in swampy places. 



Vt., Que. to Minn., southw. to Fla, and Tex. 



9. Phlox bifida Beck. (Wherry. Bartonia 11: 29-35. 1929.) CLEFT 

 Phlox. Map 1689. Within the range of the species, the number of gland- 

 tipped hairs varies greatly. In the northern part of its range the young 

 growth, at least, has an abundance of gland-tipped hairs. This form has 

 been named P. bifida var. glandifera Wherry, and has been reported from 

 St. Joseph County by Sr. Elizabeth McDonald. In the center of its range 

 the glands become fewer and may be present only on the pedicels, and in 

 the southeastern part of its range the plants may be glandless. A thinly 

 pubescent to glabrous extreme is found among Harrison, Montgomery, 



