ASTER DIVARICATUS ALATUS 121 
leaf states, on which they would be = if due to similar 
arrest. Widely distributed ; examples 
S: 4 Grant Gily, Oc. 17, 796. 
W. N. Y., Silver Cr., Au. 96-1 
Va., Potomac, east of Holtzman’s, yd 29, '88; Spout Run, Oc. 9, "9r. 
12. Aster divaricatus alatus (Barton) Burgess 
BARTON'S ASTER 
Deep-cut wing-leaf plants with narrow bracts, the large leaves 
soon taper-based and sessile. 
Name, L., from the frequent winged leaf-base 
FIG. 5, pisai from near Yonkers, N. Y., Se. 23, '99, in hb. Bu.; b, its charac- 
teristic cauline form, Z, a frequent modification. 
T sibs alatus Barton, in Wm. P, C. Barton's Prodromus Florae Phila- 
delphicae, e iud repeated in his Compendium Florae Fhíladciphicse, 2:114, 1818. 
a corymbosa alata DC. Prodr. 5: 265. 6. 
mus. 2—3 feet high, 
apt to be dark green and 
rather closely cespitose. 
often roughish,their mar- 
gins coarsely gashed 
with strong sharp broad 
teeth, each tooth bearing 
the usual aculeus of the 
Biotian species. Sinus 
broad, soon lost, the 
middle caulines at least 
being without it, their 
bases tapering into a 
conspicuous irregular 
soon oblong-acuminate, 
finally oblong-lanceolate 
and sessile. 
Inflorescence branch- 
ed at a wide angle, with 
many little oval or oval- 
chiefly pale, long, nar- T^ pd. 5. 
