204 DESCRIPTION OF ASTER; DIVARICATI 
26° Sprout- bas similar with ovate fewer-toothed leaves, and 
with some ovate radicals ; in flower as late as Oc. 26 near N. Y 
26! arii ues d Fonda form. Leaves long, narrow, to 
5x I4 in.; the short petioles 1 in. or less; all of the middle and 
upper ones 'margined, but on one side only or chiefly ; the rounded 
base of the leaf also singularly decurrent down the petiole on one 
side, overpassing the other side by 1% or % in. The leaf which 
is decurrent on the right side is followed by one decurrent on the 
left, and so forth ; this being true of all the plants from a group of 
rootstocks. 
N Y. vic., Bryn Mawr Park, Se. 17,98, rich shaded brook-bank, with nu- 
merous non-decurrent forms of 4. divaricatus L. growing everywhere near 
27. Aster olivaceus sp. nov. 
Tall pale wand-like plants with thin tissue-like ovate acuminate 
leaves, strong teeth and sinus, narrow rays and long tapering 
inner bracts, slender upcurved naked branches, widely separated 
dense-flowered involucrate cymules, and disks finally brown but 
fora long time light greenish yellow or olivaceous (whence the 
name). 
Fic. 36, plant from Dunkirk, N. Y., Au. 21, 96, in hb. Bu. ; d, younger 
cymules in bud ; of same 
Stem tall, very slender, somewhat wand-like but not rigid, 2 or 
2% ft. high, erect and nearly straight, pale and olivaceous or 
light purplish or vinous-brown. 
Leaves very thin, of delicate tissue-like texture, light-green 
or yellow-green, smoothish above in growth, finely roughened 
when dry, and quite downy beneath. Leaf-form nearly as in A. 
divaricatus L., but more triangular-ovate, coarse-serrate, commonly 
not large, 212 x 1% in., but sometimes 5 x 2% in. Sinus deep, 
broad and strong, continued well up the stem unlike A. castaneus. 
Teeth strong, either curvescent, couchant or of low-serrate type. 
Incurved acumination little-developed.  Petioles slender, persis- 
tent into the inflorescence ; winged petioles occur seldom, but some- 
times slightly among lower axiles. 
Axiles few, lanceolate, with short acumination and short peti- 
ole or sometimes a little wing-base, only slightly serrulate ; some- 
what like those of A. tenebrosus, but light or full green, not dark 
and not nearly so long or so entire. Bracteals similar, gradually 
shorter and sessile, chiefly conduplicate around their branches, 
especially the secondary branches, often 1 x is in. Radicals 
resemble the lower caulines, being ovate-acuminate, but smaller 
and less serrate. 
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pis re Sys e ee Lh dr o WU eS IE 
