174 COMPOSIT^E. Aster. 



n. ii. 502; Chapm. PI. 199. Prionopsls? Cliripmanii, Torr. & Gray, 1. c. 24.5. — Low pine 

 barrens on the coast, Florida, Chapman, Rtir/f/, Mnhr. 

 A. spinulosus, Chap.h. Stem bearing few or several spicately disposed smaller heads : 

 leaves narrowly linear, attenuate (lialf to 2 lines wide) ; the lower and radical 6 to 12 inches 

 long, upper gradually reduced to setaceous-subulate appressed bracts ; tlie margins merely 

 spiuulose-denticulate or mostly eutire ; involucre carapanulate, its bracts mostly subulate 

 from a l)road base: rays half-inch long, pale violet. — Fl. 199. — Damp pine barrens, AV. 

 Florida near the coast, Clinpnuui. 



* * Leaves all entire, thickish: pubescence if any short and scabrous: flowering in autumn. 

 ■ A. paludosus, Ait. Stems sometimes Ijranching, a foot high, lieariug few or several often 

 racemosely or s|>icately disposed lieads {of half-incli height) : leaves from broadly to nar- 

 rowly linear (1 to 4 lines wide, 2 to 4 inches long): involucre nearly hemispherical; its 

 bracts more unequal, the outer lanceolate-subulate and lax, inner linear-spatulate witli her- 

 baceous merely acute tips . rays rather short, deep violet — I-Iort. Kew iii. 201 ; Ell. Sk. ii. 

 343; Torr. & Gray, Fl. ii. 109; Chapm. 1. c. A. ,jmndifliin,s, Nutt. Gen. ii. ISC, not L. 

 TnpoUiun pahidosum, Nees, Ast. 155. He/easlnim pdliiduaiim, DC. Prodr. v. 2G4. — Wet 

 pine barrens in the low country, N. Carolina to Texas, Arkansas, and Missouri. 



§ 4. HESPERiCsTRL'.Ai. Heads with neutral rays : bracts of the campanulate 

 involucre well imbricated and unequal, the outer with short herbaceous spread- 

 ing tips • style-appendages slender-subulate : akenes narrow, hardly at all com- 

 pressed, 5-nerved and with intermediate striae : pappus simple and soft. — Gray, 

 Bot. Calif, i. 323, & Proc. Am. Acad. xvi. 97. (Resembling on the one hand 

 § Mfich(sranthera, and Corethrogyne on the other.) 



A. Shastensis, Geay, ). c. A span or two liigh, in small tufts from a perennial root, 

 paniculately hranched, slender, canescently puberulent: leaves eutire, an inch or less long; 

 lower spatulate ; uppermost linear and reduced to subulate bracts: heads rather numerous, 

 scattered: involucre (nearly half-inch high) somewliat viscid-glandular ; its bracts lanceolate 

 or linear, mostly with acute and spreading green tips rays 12 to 20, violet; 3 to 5 lines long, 

 occasionally (var. eradiatns) wanting — iJin-liiiiranthera (llesperastrvm) Shastensis, Gray, 

 Frnc Am, Acad vi. 539 — California- on Mount Shasta, above and below the limit of irees, 

 first coll. by Brewer, and on Lassen's Peak, Mrs. Austin. The rayless state on Scott iloun- 

 tains at 9,000 feet, Gircne. 



§ 5. BiOTi.v. Heads (small or middle-sized) corymbosely cj'mose : bi\acts of 

 the campanulate well-imbricated involucre subcoriaceous and wholly ajipressed, 

 obtuse and merely greenish or thickish but not spreadmg at the tip (transition to 

 § Orthomen's. but passing into the succeeihng subsection) : outer successively 

 shorter; rays not numerous (6 to 18), wlnte or purplish-tinged: style-ap])enda;;es 

 subulate-lanceolate: akeucs 3-several -ribbed or nerved, hai'dly or miiderately 

 compressed, mostly linear: pappus slightly rigid, simple: radical and lower 

 cauliue leaves cordate, on lo7ig naked petioles, ample, conspicuously serrate and 

 acuminate: fl. midsummer and early autumn. (Other Asters with' cordate peti- 

 olate leaves are only the Heterophylli.) — Torr. & CiiMv, Fl. ii. 104 Biotia 

 DC. Prodr. v. 2G4. 



A. corymbosus, Ait. Stem slender. 2 feet high, sometimes flc.Kuous, terete ■ leaves 

 membranaceous, much longer than wide, gi-adually or very prominently acuminate and 

 aciuniiiati'ly serrate: inv(jlucre only one-fourth im-li high, httle sur]i;issing the rather lu'o;idlv 



_ compressed fusiform akenes: rays 6 to 9, white —Kew iii. 207, Willd. Spec. iii. 2036; 

 Torr. & Gi-ay, 1. c. .1. dirarh-uius, L. Spec ii 873, :is to herb., excl. svn. Cronov i Pluk! 

 (which rebite to .1. iiifirmiis), and cordate leaves not described; name to subside .1 curdi- 

 folnis, Michx. Fl. ii. 114, in part. Jiurijbia r,„-ym4o,sa, Cass Diet, xxxvii 487- Xces Ast 

 143; Lin.U. li.,t. Beg. t. 1532, Biotia corjmhosa, DC, 1. c. 265, - Woodlands, C:uiada to 

 upper part of Georgia. 



