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I 
ASTER DIVARICATUS 128 
their disks were fading brownish from olivaceous ; many rameals were without flower- 
heads and were of short oblong-acute form, with about 3 low teeth on each side. In 
other plants which made a later start, the same quick suppression of axis was observed, 
ut the short branches growing each only about twice the length of its axile leaf, the 
effect became pinnate rather than flabellate : producing a long narrow inflorescence, of 
8 or 9 suberect axillary clusters each about 4 in. high. 
Comparing the stimulated vii with those in hard thin unloosened soil: 
stimulated show greater size and vigor, much more prolongation of branches and inter- 
nodes, more redness of stem, more Medo, and closer teeth. Both show the leafy 
convex inflorescence with early suppression of axis. 
Other forms of 4. divaricatus may occasionally produce flabellate plants, where the 
fan-like branching is due to accidental suppression of the main axis, and to the rise of 
several branches in its stead. Flabellate pedet. f in these plants is the heiss and 
suppression of the axis an accident; but in the flabellate form both seem the rule. 
'The virescent rays were probably a late autumn result which might not Pas become 
conspicuous in a succeeding autumn of different weáther 
I" AXILLIFEROUS form. Small subsessile or loose inflores- 
cences in the axils, descending well down the stem ; terminal in- 
florescence much larger and earlier, the others seeming like a 
downward retreat of the impulse to flower: nearly normal other- 
wise. — Examples: 
N. Y. vic., Bryn Mawr Park, Se. 17, '98, Oc. 1, '98, '99 — 1903 near 
Palmer Av. 
W. N. Y., Pt. Gratiot, Au. 29, !96. 
1? ToBYHANNA form. Plants with prolonged slenderness of 
the strict stems, branches and pedicels, small crowded heads in a 
flattish or irregular corymb, and lingual bracts with definite and 
conspicuous green tips. Unlike 4. divaricatus L., in often show- 
ing a flatter top, a high angle, for branches of 70° or 80°, and in 
its more uniform bracts. Involucre often quincunx- -chequered. 
Stem often purplish, 2 ft. or less, smooth. Leaves small, serru- 
late, glabrate, with narrow short-petiole which is soon obsolescent 
among the branches. Caulines broad cordate- oblong to lance- 
c 
Branches and pedicels attenuate, heads approximate, small, Lf in. 
high and 7 in. broad or less. Rays 8 or less, linear-oblong. 
Disks turning brown. Pappus « ecru at first, and 16 years later, in 
1897, had become ferruginous.  Bracts glabrate, pale brown with 
large definite dark green tips, these constituting an important dis- 
tinction between this form and its congener the Prune-stem 
form. 
nn., LM Falls, Monroe Co., Au. 22, 1881, 7: C. Porter in hb. 
Penn., a Col . Bu., etc., — at first as A. corymbosus rails n. var., later 
cionis gras oa = strictus (a name already bestowed on an Aster in 1874 by Pursh) 
and later again to a/tior. In 1900 Prof. Porter remarked that he no longer thought the 
orm to deserve rank as a variety. 
