GENUS 31. THISTLE FAMILY. 415 
1g. Aster Lowrieanus Porter. Lowrie’s 
or Fall Aster. Fig. 4300. 
Aster cordifolius var. laevigatus Porter, Bull. 
Torr. Club 16: 67. 1889. Not A. laevigatus 
Lam. 1783. 
Aster Lowrieanus Porter, Bull. Torr. Club 21: 
121. 1894. 
Glabrous, or very nearly so throughout; 
stem branched, 1°-4° high. Leaves thickish, 
firm, a little succulent, the basal slender-peti- 
oled, ovate to ovate-lanceolate, mostly cordate, 
acute or obtusish, serrate, or sometimes in- 
cised, 2’-6’ long, those of the stem ovate to 
oblong, often cordate, contracted into winged 
petioles, the uppermost lanceolate; heads usu- 
ally not very numerous, 23’-3” high, loosely 
panicled; involucre turbinate, its bracts obtuse 
or obtusish, appressed; rays light blue, 3’-4” 
long, but variable in length. 
In woods, Connecticut and southern New York 
to Pennsylvania, Ontario, North Carolina and 
Kentucky. Races differ in leaf-form and serration. 
Sept.-Oct. Bee-weed. Blue-devil. 
20. Aster Lindleyanus T. & G. Lindley’s Aster. Fig. 4301. 
Aser Lindleyanus T. & G. Fl. N. A. 2: 122, 1841. 
A, Wilsoni Rydb. Bull. Torr. Club 37: 138. 1910. 
Aster Lindleyanus eximius Burgess; Britt. & Brown, 
ll. Fl. 3: 364. 1898. 
Stem usually stout, glabrous, or sometimes pu- 
bescent, 1°-6° high, branched above. Leaves 
rather thick, glabrous, or slightly pubescent, espe- 
cially on the veins, the lower and basal ones cor- 
date at the base, sharply serrate, ovate, acute or 
acuminate, 2’-4’ long, with slender naked peti- 
oles; upper leaves ovate, ovate-lanceolate, or lan- 
ceolate, less serrate, or entire, sessile, or with 
margined petioles, those of the branches lanceo- 
late or linear-lanceolate, smaller; heads usually 
not numerous, 47-5” high; involucre broadly 
turbinate or nearly hemispheric, its bracts linear- 
lanceolate, acute, rather loosely imbricated, gla- 
brous, or nearly $0, their tips green; rays 10-20, 
blue or violet, 3-5” long; pappus nearly white. 
In open places, Labrador to Mackenzie, Alberta, 
a New York, Michigan and Montana. Aug.- 
ct. 
21. Aster Drumméndii Lindl. Drummond’s 
Aster. Fig. 4302. 
Aster Drummondii Lindl. in Hook. Comp. Bot. Mag. 1: 
97. 1835. Brace, 
Aster hirtellus Lindl. in DC. Prodr. 5: 233. 1836. 
Stem usually stout, finely and densely canescent, 
branched above, 2°-5° high. Leaves mostly thin, 
ovate or ovate-lanceolate, acuminate, rough above, 
canescent beneath, the lower and basal ones cordate, 
with slender naked petioles, sharply toothed, 2’-4° 
long, the upper cordate or rounded at the base, usu- 
ally on margined petioles, those of the branches 
sessile and entire or nearly so, much smaller; heads 
3-4” high, rather numerous on the racemose 
branches; involucre turbinate, its bracts linear, 
slightly pubescent, acute or acuminate, their green 
tips appressed; rays 8-15, blue, 3-4” long; pappus 
whitish. 
In dry soil, borders of woods and on prairies, Ohio 
to Minnesota, Kentucky, Arkansas and Texas. Perhaps 
not specifically distinct from the following. Sept.—Oct. 
