ORDER 70. COMPOSITE. 42.9 



9 E. glabllum Xutt. Lvs. smooth, entire, spatulate, long-tapering at base, upper 

 lanceolate and lance-linear, sessile, acuminate; lids. 4 to 6, corymbed ; iuvol. 

 hemispherical, pubescent as well as the peduncles; rajs very numerous, pale 

 blue. Wis. to Xebr. 12 to 18' high. Lva. long and narrow. Bays 100 or 

 more. ' Jl. } Aug. 



21. CALLISTEPHUS, Cass. CHINA ASTER. (Gr. nd/J.o^ beauty, 

 <7Tt'6or, ; a crown ; characteristic of the pappus.) Ray-flowers $ , numer- 

 ous ; disk-flow ers $ ; involucre hemispherical ; receptacle subconvex ; 

 pappus -double, each in 1 series, outer series short, chaffy-setaceous, with 

 the setiu united into a crown ; inner series of long, filiform, scabrous, 

 deciduous bristles. J) Exotics. Lvs. alternate. 



C. CMnerisis Xess. St. hispid ; branches divergent, 1-flowered ; Ivs. ovate, 

 coarsely derftafe, pettolitS, cauline ones sessile, cuneate at base. Said to be orig- 

 inally from 6hina. Stem about 18' high, with long branches, each terminated by 

 a single, large hoad.- Kays dark purple. Disk yellow. July Sept. Cultiva- 

 tion lias produced ma^y beautiful and even splendid varieties, double and semi- 

 double, with white, blue, red, flaked and mottled rays, f (Aster Chineiisis L.) 



22. BEL'LIS, L.' GARDEN DAISY. (Lat. bellus, pretty; a term 

 quite appropriate y> $e*genus.) Heads many-flowered ; rays ? ; disk 



; "involucre hernis~phc?rical 7 of equal scales ; receptacle subalveolate, 



conical ; pappus none. Low liferbs, either (J) and caulescent or 2 and 



acaulescent. Hds. solitary. 



1 B. integrifolia MX. Annual, diffusely branched; Ivs. entire, spatulate-obovate, 

 upper oblong-lanceolate, sessile; scales lance-ovate, setaceous- acuminate, with 

 scarious margins. Wet prairies, Ky.' to Tex. Sts. 6 to 12'. Rays violet-pur- 

 ple, in hds. similar to the next. Mar.-^May. 



2 B. perenuis L. ferennial ; rdOt crSWping; scape naked, single-flowered; 

 Ivs. obovate, crenate. H Native of England and other parts of Europe, nearly 

 naturalized in some parts of N. England in cultivated grounds. Scape 3 or 4 

 high, with a single white hoad which is single, double or quilled in the differ- 

 ent varieties. Blossoms in the spring and summer months. 



23. DArTLIA, L. (In honor of Andrew Dahl, a Swedish botanist, 

 pupil of Linnajus.) Heads many-flowered, rays $ , disk $ ; involucre 

 double, the outer series of many distinct scales, the inner of 8 scales 

 united at base ; receptacle chaffy ; pappus none. 2 Splendid Mexican 

 herbs. Lvs. pinnate, opposite. 



1 D. variabilis Desf. St. green ; rachis of the Ivs. winged; Ifts. ovate, acumi- 

 nate, serrate, puberulent or nearly smooth ; outer invol. retiexed ; ray fls. $ , sterile 

 or fertile. These superb and fashionable plants are natives of sandy meadows 

 in Mexico. They have coarse and roughish Ivs. resembling those of the com- 

 mon elder, but the flowers are large and beautiful, sporting into innumerable 

 varieties, single and double, of every conceivable shade of scarlet, crimson, purple. 

 red, rarely yellow, blooming from July until arrested by frost 



2 D. coccfnea Car. St. frosty, or hoary, hollow ; Ivs. with the rachis naked ; 

 Ifts. roughish beneath ; outer in vol. spreading ; rays neuter. Stems about 4f high. 

 Foliage rather glaucous. Rays scarlet, saffron-color or yellow, never purple or 

 white. The Dahlias are generally cultivated by the divisions of the tuberous roots, 

 which, as soon as the frost blackens the tops, are to be taken up and preserved 

 through the winter in a' dry place, free from frost. 



24. BOLTCTWA, L'Her. (To J. B. Bolton, author of "Ferns of 

 Great Britain," &c., 1788.) Hds. many-flowered; ray-flowers 9, in a 

 single series, those of the disk tubular, ; scales in 2 series, appressed, 

 with membranous margins; receptacle conic, punctate; achenia flat, - 

 or 3-winged; pappus of minute setae, 2 (to 4) of them usually length- 



