ASTER ARGILLARIUS 189 
woods, rock by Jerome Av., near 2d brook, Oc. 2, ee Yonkers, Park Hill, wet 
sandy bg Oc. 10, ’98. Bryn Mawr Park, Se. 14, 1903. 
Filed, Cliffside Park, Se. 12, ‘98. Underci in clay, typical locality, 
Se. 29, fee. Oc. '97, Se. and Oc. 7,98, Se. 14 and Oc. 7,'99; few surviving Se. 
6 
EO 
o 
9 ouse 
at Hottonia brook, in clay-bank, Se. 14, 1900, destroyed by turfing park. — Also, 
woodland between the last two stations, Se. 14, '99. 
22? Branch-forms. Giese more irregular; rameals 
enlarged, taper-based, subentire or obscurely crenulate. Heads 
somewhat larger than in the type—as often occurs in other 
branch-forms. 
Observed chiefly at the Palisades, Oc. 7, ’98, etc. 
22° Sprout-forms, occasional, with the preceding. Short 
winged petioles frequent; confused series of various leaf-types 
developed in rapid succession, orbicular, cordate, oval-oblong, 
elliptic, € E. , within the space of 5 inches, ascending the 
stem in the order 
N. Y. vic., Larchmont, Oct. 28, ’98. 
22* Pale-disk form, verging toward A. divaricatus L. Red in 
the disks less developed ; leaves more cordated and more acu- 
minate ; inflorescence more irregular, teeth often obsolescent ; all 
parts still small. 
N. J., Palisades, Se. 14, and Oc. 7, '99, hundreds of plants forming a loose 
mass under half shade ; pen pale and leaves rough in growth ; some surviving parking, 
Se. 1 
22? Linnaea-leaved form. Very delicate plants with a long 
succession of very small roundish crenate leaves, resembling those 
of Linnaea, chiefly 34 in. long, or even all of them only 7 in., 
with the filiform petiole half the leaf-length. Leaves thickish, 
acute, with acute sinus or soon with rounded base.  Axiles pecu- 
liar, oblong, abruptly acuminate, suddenly contracted into a sessile 
ase, the margins slit-serrate ; verging toward the cauline leaf-type 
of the Dentifolial form of A. stilettīformis — which also grows (but 
some ten miles distant from this Zzzzaca-leaved form), on Martha's 
Vineyard. Inflorescence irregular, few-flowered, 10-20 heads 
or less. 
M. V., Davistown, woods, Se. 4, '97. 
N. J., Palisades, Undercliff, at type locality for 4. argillarius ; Oc. 7, '98, 
Se. 14, '99 ; survivors trampled out by builders, Au. 1600 
22° Pinnated form, verging toward f Claytont. Branches 
continued from the middle axils, producing a pinnately corymbose 
effect in herbarium ; inflorescence 4 in. across at the rather full 
rounded summit, 6 to 10 in. deep, straight-sided and sharp-based 
as in the type, but more leafy, each branch bearing several little 
* 
