Aster. — Erigeron. 963 
1320. (2.) Aster integrifolius Nutt. Trans. Americ. Phil. Soc. 
Nov. Ser. VII (1841), p. 291. — Torr. and Gray Flor. U, p. 111. — 
Stem mostly 30 cm or more high, stout, sparsely leafy, villous- 
pubescent but glabrate, bearing few or several racemosely or thyrsoidly 
disposed heads: leaves of firm texture, oblong or spathulate (the 
larger 8—14 cm long) or the smaller upper ones lanceolate, 
sometimes obsoletely repand-serrulate, apiculate, traversed by a strong 
midrib, venulose-reticulated, glabrate, half-clasping; lowest tapering 
into a long stout wing-margined petiole with clasping base: heads 
fully half-inch high, hemispherical: involucre and branchlets viscid- 
glandular; its bracts few-ranked, linear, ascending, not squarrose; 
the outher sometimes short and rather close, commonly larger and 
more foliaceous, nearly equalling the inner; these equalling the 
disk: rays 15—25, bluish-purple, half-inch long: achenes compressed- 
fusiform, 5-nerved, and sometimes with intermediate nerves, sparsely 
pubescent: pappus decidedly rigid. — Flow. March to April. 
M. ma. Alexandria, naturalized near Behig (Muschler), probably 
recently introduced. 
Common in the Cascade Mountains of Oregon, also in South Colorado, 
Sierra Novada and California. 
1321. (3.) Aster Novi-Belgii L. Spec. Plant. ed. II (1763), 
p. 877. — Aster floribundus Willd. Spec. III, p. 2048. — Aster laxus 
Torr. and Gray Flor. II, p. 134. — Stera nearly smooth, corymbose- 
panicled above; leaves long, lanceolate, acuminate, shining above, 
the lowest narrowed at the base, and serrate in the middle, the 
upper sessile or partly clasping; heads solitary or few on the rigid 
branchlets; scales of the involucre linear, with green and subulate, 
or broader and abruptly pointed spreading tips; rays purplish blue. 
— Flow. March to April. 
N.v. Naturalized near Luksor. 
Common plant in North and Middle America. 
545. (5.) Erigeron Linn. 
Capitula heterogamous; flowers of ray numerous 1—ococ-seriate 
pistillate, disk-flowers perfect (or staminate). Involucre hemispherical 
or campanulate, scales subbiseriate narrow, outer usually rather 
stouter. Receptacle naked (more rarely alveolate and fimbrilliferous). 
Ray-florets all or outer only ligulate, ligule narrow or filiform; 
disk-florets tubular, slightly dilated to the 5—4-toothed mouth. 
Anther-base obtuse unappendaged. Style-branches more or less 
flattened, lanceolate or ovate-lanceolate (rarely, linear) papillose. 
Achenes much or slightly compressed, often with reniform margins. 
GL* 
