144 DESCRIPTION OF ASTERS; DIVARICATI 
. Y. vic., Bryn Mawr Park, Se. 26, '96, Se. 18, '97, etc. ; Mosholu Av., 
Oc. 2," "n Mashalá Sta., Se. 30, '06. 
, Potomac at Spout Run, Oc. 9, ’9I. 
5 FEw-FLOWERED form ; low clustered foliaceous plants hav- 
ing great breadth of leaf; heads few, large, close-clustered, often 
exceeding 1 in. broad; rays milk- white, linear-oblong ; upper 
series of ‘leaves little developed, but usually showing one or more 
leaves of the characteristic form of the species; from which, how- 
ever, further observation may yet indicate this form to be distinct. 
N: Y. vic., Mosholu Av., Oc. 2,'97 ; S. Za Grant City, Oc. 17, 96. 
Va., Potomac, Aqueduct Br., Oc. 3, 9 
4° RoOUNDED-BASE form; most leaves broad-based, but taper- 
acuminate, the middle and upper ones abruptly rounded at the 
base, not taper-based as in the type; teeth also less typical, 
small and less pronounced. Intermediate to A. divaricatus L., 
and widely distributed. 
N. Y. vic., Bryn Mawr Park, Se. 26, ’96, Se. 18, ’97, Se. 17, '98, Se. 16, 
99, to p 
SN E eo: 95-1904. Sheridan, Clear Spring, July nls xa 
plants hen 16i in. high and beginning to form flower heads. .Sz/ver Cr., '95-19 
., Potomac, Ma Gap, Oc. 1, '89. 
4 hoe form; leaves broad and truncate at base; 
the shallow broad sinus, typical for lower leaves, here continues 
well up the stem; teeth closer, stronger, slenderly bristle-tipped, 
toward the base of the leaf much crowde 
ic., **rich woods, Kingsbridge, Oc. 9, '98, A. divar. var." Bi. ; 
Bryn e jue Se. 16, "99, Ju. 
Va., Potomac, Windy oa Oc. '86, Bu., abundant and highly developed ; 
the ** Denis form" as then record 
POSSIBLE HYBRIDS include : 
4° A. persalieus x A. excavatus. Teeth greatly developed, 
irregularly crowded, projecting in all directions, and including 
couchant, curvescent, aquiline, and also straight-backed forms. 
Sinus deep and narrow, occurring in almost all leaves to the 
axils. Inflorescence small, with bracts nearly as in A. excavatus. 
Unites in the leaf the sinus of A. excavatus with the teeth of A. 
persaliens ; the leaf-form is more that of A. excavatus, but less 
slender than in either probable parent. 
N. Y. vic., Tarrytown, opposite Sleepy Hollow cemetery, Se. 24, '98, Bu. 
Woodlawn Woods, Se. 25, '98, Bi. 
4' A. persaliens x A. umbelliformis. — Leaf-form of A. per- 
saliens ; teeth remaining sharp and conspicuous, but more forward- 
