66. Aster Priceae Britton. Miss Price's Aster

Fig. 4347

Aster Priceae Britton, Manual 960. 1901.

Stem pubescent, widely branched, 1°-21/2° high. Basal leaves oblanceolate, obtuse or acutish, entire, petioled, l'-3' long, the petioles ciliate, broad; stem leaves linear-lanceolate, sessile, ciliate, acuminate, 3/4'-2' long, those of the branches similar but smaller; involucre nearly hemispheric, about 3" high, its bracts linear, the outer gradually acuminate, green, the inner a little broader, abruptly acuminate, acute or obtusish; heads about I broad; rays bright purple or pink.

In dry soil, Kentucky and North Carolina. October.

Aster kentuckiensis Britton, also of Kentucky and North Carolina, differs in being glabrous, its involucral bracts all gradually acuminate.

67. Aster Parviceps (Burgess) Mackenzie & Bush. Small-Headed Aster

Fig. 4348

Aster ericoides parviceps Burgess; Britt. & Brown, 111. Fl. 3: 379. 1898.

Aster parviceps Mackenzie & Bush, Fl. Jackson Co. 196. 1902.

A. depauperatus parviceps Fernald, Rhodora 10: 94. 1908.

Pilose, sometimes slightly so, much branched above, 1°-21/2° high, the branches ascending. Basal leaves spatulate; stem leaves linear to linear-lanceolate, 1'-3' long, often with short leafy branches in their axils, those of the branches very small; heads many, paniculate; involucre about 2" high, turbinate, its linear-subulate bracts imbricated in several series; rays 10-12, white, about 2" long.

Dry prairies and open woodlands, Illinois, Iowa and Missouri. Aug.-Sept.

68. Aster Depauperatus (Porter) Fernald. Serpentine Aster

Fig. 4349

Aster ericoides pusillus A. Gray, Syn. Fl. I8: 184. 1884.

Not A. pusillus Horn. Aster ericoides depauperatus Porter, Mem. Torr Club 5: 323. 1894. Aster depauperatus Fernald, Rhodora 10: 94. 1908. Aster parviceps pusillus Fernald, Rhodora 11: 59. 1909.

Glabrous, slender, widely branched, 4'-15' high. Basal leaves spatulate or oblanceolate, obtusish, 1/2'-1 1/2' long, narrowed into petioles; stem leaves linear to linear-subulate, 1' long or less, 1/2"-1" wide, those of the branches minute; heads many, terminating short branchlets; involucre turbinate, about 2" high, its bracts linear-subulate, acute, rays white, about 2" long.

On serpentine barrens, southern Pennsylvania and West Virginia. Aug.-Oct.

69. Aster Paludosus Ait. Southern Swamp Aster

Fig. 4350

Aster paludosus Ait. Hort. Kew. 3: 310. 1789.

Heleastrum paludosum DC. Prodr. 5: 264. 1836.

Stem roughish, or rough-pubescent, slender, simple, or somewhat branched above, 1°-21/2° high. Leaves linear, entire, glabrous, but margins rough or ciliate, rigid, 2 -6' long, 2"-4" wide, mostly 1-nerved, acute, the lower part commonly sheathing the stem; heads few or several, racemose or paniculate, 1 1/2'-2' broad; involucre broadly campanulate or hemispheric, its bracts imbricated in about 5 series, foliaceous, ciliate, the outer lanceolate, acute, the inner oblong or spatulate; rays 20-30, deep violet, 5"-7" long, pappus tawny; achenes 8-10-nerved, glabrous, or nearly so.

In swamps, Kansas and Missouri to Texas, east to North Carolina and Florida. Aug.-Oct.