ASTER LEPTOCAULIS 249 
late, about 8 mm. high, its bracts obtuse or obtusish, ciliate ; heads 
about 2.5 cm. broad. — Milwaukee, Wis., collected by Dr. H. E. 
Hasse,” 
Subsection 2. CURVESCENTES. 
Radicals usual, numerous and large, forming conspicuous colo- 
nies ; involucre narrowly cylindrical or terete ; rays white, some- 
times turning rose-color but not violet; disks turning brown or 
E 
Aster léptocaulis 
Fic. 51. 
sienna, rather than crimson ; pedicels not tomentulose all over (as 
in A. divaricatus) but bearing pubescence in lines ; no glandular 
hair present. Zzc/udes Divisions A and B, species 40-54. 
Division A. CURVESCENT ASTERS. 
Bracts chiefly scarious and pale, very narrow and attenuate, 
tapering-obtuse. Leaves large, thin. Rays narrow. 
