472 COMPOSITAE. Vou. III. 
7. Rudbeckia speciédsa Wenderoth. Showy 
Cone-flower. Fig. 4448. 
Yf§ Rudbeckia aspera Pers. Syn. 2: 477. 1807? 
4] R. speciosa Wendler. Ind. Sem. Hort. Marb. 1828. 
Perennial, more or less hirsute or hispid; stem 
branched above, 1°-4° high. Leaves firm, slender- 
petioled, 2’-5’ long, 1-2’ wide, dentate with low teeth, 
acute or sometimes acuminate, 3-5-nerved; stem 
leaves sessile or partly clasping, or narrowed into 
broad margined petioles, laciniate or serrate, lanceo- 
late to ovate, acuminate, often 6’ long, the uppermost 
smaller and sometimes entire; heads several, 2’—3’ 
broad; bracts of the involucre linear-lanceolate, 
acute; rays 12-20, 1-13’ long, bright yellow, usually 
orange at the base; disk depressed-globose, 5’-8” 
broad, brown-purple; chaff of the receptacle obtusish 
or acute, ciliate or naked; pappus a short crown. 
In moist soil, New Jersey to Michigan, south to Ala- 
bama and Arkansas. Aug.—Oct. 
Rudbeckia Sullivantii Boynton & Beadle has been 
separated from R. speciosa on account of its broader 
leaves, larger disk-flowers and larger achenes. 
8. Rudbeckia grandiflora Gmelin. 
Large-flowered Cone-flower. 
Fig. 4449. 
Rudbeckia grandiflora Gmelin; DC. Prodr. 5: 
556. 1836. 
Perennial; stem 13°-3° tall, scabrous or 
hispid throughout. Leaves mainly on the 
lower part of the stem, very rough on both 
surfaces, ovate-elliptic to lanceolate, 23’-6’ 
long, acute or acuminate at the apex, cu- 
neate or more abruptly contracted at the 
base, shallowly serrate or denticulate, the 
petioles of the lower cauline and basal 
leaves as long as the blades or longer; 
heads large, solitary or few, showy; rays 
several, yellow, 14’-13’ long, drooping; 
bracts of the involucre linear, acuminate; 
disk ovoid or ovoid-globose, 3’-1’ thick; 
chaff obtuse, canescent; pappus conspicuous, 
crenate or toothed. 
On dry prairies, Oklahoma to Louisiana and 
Texas; introduced into Missouri. June-Aug. 
SSS 
—— 
sy 
== 
g. Rudbeckia maxima Nutt. Great Cone- 
flower. Fig. 4450. 
Y 
ek 7 
x — 
Rudbeckia maxima Nutt. Trans. Am. Phil. Soc. (II) 
7: 354. 1841. 
Perennial; stem 3°-9° tall, simple or branched 
above, smooth, glaucous. Leaves oblong, oval, 
or ovate, or pandurate, 23’-8’ long, mostly ob- 
tuse, undulate, repand-denticulate or entire, the 
upper sessile and partly clasping; heads large, 
showy; rays several, yellow, 7’~20” long; bracts 
of the ‘involucres linear or linear-lanceolate, 
acute, short; disk cylindric to conic-cylindric, 
1-23’ long; chaff abruptly short-pointed, pubes- 
cent at the summit; pappus conspicuous, den- - 
ticulate, accentuated at the angles. 
In moist soil, Missouri to Louisiana and Texas. 
June—-Aug. 
