260 - DESCRIPTION OF AsrERS; CURVESCENTES 
like the former parent in having sharper, stronger teeth, and upper 
caulines and large axiles resembling lanceolate leaves of the latter. 
Va., Potomac bank, near Washington, Spout Run, Oc. 2, '88. 
Division B... GLOMERATE AND SCHREBERAN ASTERS. 
Bracts highly coriaceous, chiefly pale and obtuse, with green 
tip and midrib. Species 44—54. 
Subdivision A. GLOMERATE ASTERS. 
Inflorescence rather dense, quite regular, not very large. 
Radical colonies not very conspicuous. Species 44-47. 
* Bracts _ glabrate, 
but little ciliate, acutish or 
attenuate-obtuse, teeth close, 
sharp, outflung ; leaves almost 
glabrate. 
44. Aster exacutus sp. nov. 
Slender wand-like plants 
with about 3 triangular-ovate 
slit-margined radicals and as 
many similar lower leaves, 
followed by 12—18 small ellip- 
tic-acute caulines and many 
small heads in a flat-topped 
corymb. 
harn 
Name, L., — very much p 
ened; from the very acute teeth and 
leaf-apices. 
FiG. 57, from plant of dry 
wooded bank of the Hudson near Hast- 
ings, N. Y., coll. A. in hb. Su., re- 
' duced to % nat. size; rays omitted ; 
4, characteristic leaf-form ; d, common 
radical form ; e, primordial leaf. 
: Stem about 2 ft. high, 
greenish-brown, smooth and terete, its nodes about 2 in. remote 
below, 74 in. or less above. 
. 3Leaves deep green, of thin and dense texture, of two distinct 
types, the triangular-ovate radical and lower cauline 4 or 5 in. 
Fic. 57. 
