196 DESCRIPTION OF ASTER; DIVARICATI 
24° Trowel-leaf form. Often dark green; the axile type of 
the typical form here becomes the predominant cauline leaf-form ; 
- lower caulines ovate-triangular with deeper sinus. With the type 
at all localities, and persisting longer, the type seeming to turn to 
this when depauperate. 
N. Y. vic., Eastchester, Seton Falls, Se. 24, 1900. Yonkers, Hillview, Se. 
19, 97; Bryn Mawr Park, Oc. 21, '98, Se. 28, 1900, Se. 15, 
24° Round-leaf form. ode: toward A. ee curti- 
folius: teeth less developed; many lower caulines suborbicular 
and quite large, 31% x 3 in., with deep broad sinus and apiculate 
base 
Beneath Split Rocks, Se. 25, 97, not found the three following years. 
247 Little-spade form. More slender plants with reduction of 
leaf-size, serration and color, and with perhaps still less hair than 
in the type. Lower leaves ovate-acute, low-serrate, with rather 
deep broad square sinus, soon becoming shallow.  Listriform 
leaves suddenly follow (or sometimes gradually), with truncate 
brace-base or sometimes a notched base ; they are subentire and 
thin, very minutely crenulate or denticulate ; ; obtuse or rounded at 
apex; and usually a pale yellowish-green. A few are acute and 
a few are entire; sometimes they are quadrate and crenate with 
pronounced pendant basal lobes. These leaves often numerous, 
but occasionally only 1 or 2 on a plant, and are usually 34 in. 
long, rarely 1 in. Slender, undulatiform, orbicular and cuneate 
petioles, all occur. The axiles are less prolonged than in the 
type, often 114 x 34 in., ovate-acute, moderately straight-serrate ; 
the inflorescence small, shallow, often more condensed, and short- 
pedicelled, 2 to 4 in. broad, with some rounded and some chanfer- 
tipped bracts. 
N. Y. vic., at the bri for the type, also at d at Inwood and 
Ft. gern on Manhat .; and probably widely diffus 
See ponas pelis with the type 4. road from the sam 
source with m carmesinus, and A. divaricatus, and apparently not attaining ond 
stable equipoise as to transmit very definite die? a fluctuation-variant perhaps 
rather than a species. 
24° Shuttle form. Middle and upper caulines not typically 
listriform but longer in proportion, resembling a shape seen in 
many shuttles ; z. e., somewhat oblong with straight parallel sides, 
truncate square-cornered base, and at the end abruptly sloped into 
an obtuse or very slightly acute apex. Such leaves are about 
1% x I in., and have less rounded corners than the listriform 
type, besides being much more tardily narrowed toward the apex. 
Lowest caulines and the axiles nearly as in A. divaricatus in form, 
the lower leaves 2717 x 114 in. or less, the axiles 117 x 34 in. OF - 
