422 Okdb;c 70.— COMPOSITE. 



2 — if high, dividing into many aaconding, rigid branohea, with numerous and 

 crowded heads, forming a compound panide of leafy racemes. Heads small, each 

 with about 12 rays, which are white or with various shades of blue. Leaves 

 becoming smaller above, lanceolate and even linear. Sept. 



10 A. undulatua L. St. paniculate, puberulent ; branches bracted, 1 (or fow)- 

 tlowered; Ivs. dblong-cordaie, amplexicaul, entire, hairy, somewhat undulate or 

 crenate-serrate, lower ones ovate, cordate, subserrate, with winged petioles; 

 invol. closely imbricate. — Dry woods, U. S. Plant rough, about 2f high, with 

 slender branches. Lewer Ivs. on winged petioles, cordate, acuminate, upper ones 

 becoming narrow-ovate and clasping. Fls. pale blue, solitary or somewhat clus- 

 tered, forming a loose, raeemous panicle. Aug., Sept. 



/3. diversif6lius. Very slender; Ivs. shorter in proportion, ovato and oblong; 

 branches slender, 1-flowered. — South (Pond.) (A diversifolius, M.^.) 



11 A. aziireus Lindl. Scabrous; st. and racemous-paniculate branches slender 

 but rigid; Ivs. lance-ovate, cordate, slightly seiTato, on slender petioles, middle and 

 upper ones lanceolate and linear, acute at each end, sessile, entire, highest subulate ; 

 lids, broadly obconic ; scales oblong-linear, acute, appressed. — Woods and prairies, 

 W. States. St. about 2f high. Lvs. of several forms between the lowe.9t cordate 

 to the small, subulate, numerous, floral ones of the slender branches. Eac. pani- 

 cled, with middle sized Iieads, sometimes reduced to a single raceme or head ! 

 Rays blue. Aug., Oct. — (Should the scales become loose and somewhat spreadin;.', 

 it would be A. anomalous, Engelm. ex. descr.) 



12 A. Shortii Hook. Slender and nearly glabrous, simple or somewhat branched 

 above; lvs. lance-ovate, deeply cordate, petiolate, long-acuminate, entire, upper 

 ones sessile and obtuse at base; hds. middle-size, raeemous or racemous-panicu- 

 late, rather numerous ; invol. broad-campanulate ; siales scarious, close, greeii- 

 iipped, shorter than the disk jkrwers. — A distinct and beautiful species, on rocky 

 banks of streams, Ohio to Ark. Stem a little floxuous, 2 — if high. Lower leaver 

 about 5' by 1^', the others successively diminislied upwards to the flowers where 

 they are minute. Rays violet blue. 



13 A. squarrosus Walt. Very slender, scabrous, witli long, simple branches; 

 lvs. very small, triangular, cordate-amploxieaul, reflexed-squarrous ; hd.s. terminal; 

 invol. obconic, scales imbricated with ovate, green, squarrous points; achenia 

 pubescent. — N. Car. to Pla. in dry soil. A very singular Aster, 2f or moro high, 

 rigid, shrubby at base. Lower lvs. remote, 1' long, middle and upper crowded, 

 stiff, mucronate, 1 to 2" long. Hds. middle size, with near 20 showy blue rays. 

 Pappus rather tawny. Sept. — Xov. 



14 A. adnatus Nutt. Scabrous ; stems and branches ascending, very slender ; 

 lvs. oblong-ovate or lanceolate, approximate, erect, and adlierent to the stem by the 



" midmin, the summit being free. — A stiU moro curious species, found in Pla. to 

 La. Stg. shrubby at base, 1 to 2f high. Lvs. as small as in the last, hds. and 

 fls. also similar. Sept.— Kov. 



15 A. patens L. St. simple, paniculate above, pubescent ; lvs. ovate-oblong, 

 acute, cordate-clasping, scabrous on the margin pubescent ; pan. loose ; hds. ter- 

 minal on the branclalets ; scales imbricate, lanceolate, lax, o?ibj the points lierba- 

 ceous. — Grows in moist grounds, Mass., N. Y., to Ga. (Feay, Pond.) St. 2 to C.( 

 high, slender, branching above into a loose spreading panicle. Lv.s. 1 to 3' long, 

 J to J as wide. Hds. large, with 20 to 30 violet-colored rays. Pappus tawny. 

 Aug.— Nov. — Variable. (A. amplexcaulis Willd.) 



B. PHLOGlFOLius. Simple or racemous-paniculate; lvs. lance-ovate, cordate- 

 auriculate, very acute, edges ciliato; hdf^. large, spreading 16". Pappus 

 deeply tawny. — N. Y. to Ohio. 



16 A. Novae Anglice L. Mds.ierminal, croioded, somewhat fasUgiate ; st.h\s^\i. 

 paniculate; lvs. linear-lanceolate, amplesicaul, auriculate at base; scales equal 

 lax, linear-lanceolate, rather longer than the disk, green tlieir whole length. — A 

 large and beautiful Aster, in fields, meadows and shades, more common in the M. 

 and "W. States than in N. Eng. St. 4 to 6f high, straight, erect, viseidly iairy, 

 colored. Lvs. very numerous, entire, with 2 auricular appendages at base. FLs. 

 large, in a kind of loose, paniculate corymb. Eay-fls. deep purple, numerous 

 (75 to 100). Pappus deeply tawny. Ach. hairy. Sept, -f 



