[VoL. 3 
142 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Pittonia 4:114. 1900; Nelson in Coulter & Nelson, Manual 
Cent. Roeky Mountains 582. 1909, in part; Daniels, Univ. 
Mo. Studies, Sei. Ser. 2:252. 1911, in part. 
S. aureus L.? var. croceus Gray, Proc. Acad. Nat. Sei. Phil. 
15:68. 1863, i. e., Hall and Harbour No. 332, in part, and Parry 
No. 405, not 5. peo DC. 
S. aureus var. croceus Gray, Syn. Fl. N. Am. 1? :391. 1884, 
and ed. 2, 1886, in part. 
S. НИЕТА ив Rydb. Bull. Torr. Bot. Club 27: 176. 1900; 
Fl. Colo. 396. 1906; Coulter & Nelson, Manual Cent. Rocky 
Mountains 582. 1909. 
S. Tracyi Rydb. Bull. Torr. Bot. Club 33:159. 1906; КІ. Colo. 
397. 1906. 
S. pyrrhochrous Greene, Pl. Baker. 3:24. 1901. 
An herbaceous perennial, glabrous throughout or slightly 
tomentulose in the axils of the braets of the inflorescence; 
stems erect, 1 to 7.5 dm. high from a rather stout rootstock, 
striate; lower leaves petiolate, oblong-ovate, subcordate to 
abruptly contracted at the base, rounded, obtuse or submucro- 
nate at the apex, entire to somewhat crenate-dentate; petioles 
1 to 12 em. long; stem-leaves petiolate and sublyrate to ses- 
sile and semiamplexicaul; inflorescence a few to many-headed 
corymbose cyme; heads in anthesis 8 to 10 mm. high, radiate; 
involuere eampanulate, sparingly calyculate; bracts of the in- 
voluere (13-) 21, linear-lanceolate, 5.5 to 8 mm. long, acute, 
glabrous, more or less tinged with purple; ray-flowers 10 to 
12, rays orange-red or saffron-colored varying to yellow; disk- 
flowers numerous; achenes glabrous. 
Distribution: mountains of Colorado and Utah. 
Specimens examined: 
Colorado: Medicine Bow Mountains, 3 Aug., 1891, Cran- 
дай (U. S. Nat. Herb.) ; Rocky Mountain Flora, Lat. 39-41°, 
coll. of 1862, Hall € Harbour 332 (Gray Herb.), in part, TYPE; 
Middle Park, coll. of 1862, Parry 405 (Gray Herb., Mo. Bot. 
Gard. Herb., and U. S. Nat. Herb. 349244) ; without definite 
locality, Wolf 4 Rothrock 581 (Gray Herb., U. S. Nat. Herb., 
and Phil. Aead. Nat. Sei. Herb.); Gray's Peak, July, 1888, 
