ASTER VIRGULARIS 179 
and in its smaller more delicate plants and leaves, and in lacking 
the tendency to produce decurrent leaves which is common in J, 
Scutiformis. 
Differs from A. sZ/etiformis (which it approaches in its narrow 
slit-toothed upper leaves) in the less prolonged lower leaves, the 
closer teeth, and the more universal persistency of the petiole- 
base. 
Resembles A. rupicola and A. scutiformis in its basal scutiform 
leaves but above these leaves it differs in almost all respects. 
Stem more rigidly erect than A. rupicola and inflorescence more 
stiff, less separated. 
abitat, rocks and rocky hills, Lower Hudson apes : to Manhattan; 
the type locality, Bryn Mawr Park at Split Rocks, Se. 1896—' 97, '98, destroyed by 
building. Rediscovered nearby, Se. 14, 1903 ; Se. 1904. 
19? Tangle-tuft form of A. virgularis. Teeth coarser, fewer. 
Flowers loosely borne in a small tuft in which the long pedicels are 
entangled; the tuft often centrally depressed, 7. e., with shorter 
central pedicels.  . 
Tarrytown, N. Y., Sleepy Hollow, Se. 24, ’98. 
19° Linear-oblong form of A. virgularis. Teeth less developed, 
more remote, chiefly forward-directed, of low slit-serrulate type, 
and straight-backed. Leaves less curved, the upper less rapidly 
diminished, more of them deflexed, their type narrowly oblong 
with somewhat tapered base. 
Grassy slopes under half-shade on gneissic rocks, in small loose patches, Lower 
Hudson valley; Manhattan I. at Inwood; Yonkers at Dunwoody and Bryn Mawr Park. 
19* Crimson-tassel form; verging toward A. divaricatus in leaf 
form, especially in larger plants; bracts narrowed to slender but 
short; disks very conspicuous, deep crimson. Develops some 
couchant teeth, like 4. persalens, but its leaves are much broader- 
based 
In Yonkers, N. Y., at Bryn Mawr Park, Se. 26, 96, then abundant, but locality 
soon after destroyed. 
^ Turbine-wheel form. Delicate wiry plants with loose irreg- 
ular inflorescence. Leaves between those of A. divaricatus and 
A. virgularis, bright apple-green, very soft and smooth when 
fresh, roughened when dry, but without obvious hair. Leaves 
chiefly triangular-lanceolate with broad brace-base, the lower 
triangular-ovate with narrower sinus, the axiles stilettiform or 
lance-linear and long-acuminate, the latter 2 x % in. or less. 
Teeth sharp and close. Heads widely separated on capillary 
