174 University of California Publicafions in Botany [Vou G 



former species has not been fonnd within '20 km., of localities where 

 A. cognatus grows, the known ranges of the two being separated by 

 the Coachella Valle> . in the lowtT parts of wliich it is reasonably certain 

 that no Aster of this gronp occui"s. The poHen-grains in tlic proposed 

 species are well formed and apparently fertile. 



Erigeron aequifolius sp. nov. 



Perenuis. nuilticanlis e rhizomatibns tennibns : canlibus erectis. 15- 

 20 cm. altis. simplicibns vel ramosis, villosis atomiferisqne : follis numer- 

 osis. qnam internodiis mnlto lougioribns. lineari-lanceolatis vel lineari- 

 oblougis. acntis. integris. 10-15 mm. longis. 1-3 nnn. latis, dense 

 breviter villosis ; pilis saepe cnrvatis sed patentibns : intlorescentia 

 minnte giandnlifera : capitnlis solitariis. eanles simplices vel ramos 

 breves foliosos adseendentesqne terminantibns; pednncnlis 1-3 cm. 

 longis. nndis vel interdnm setoso-bracteatis : involncro heraispherico. 

 4-5 mm. longo. minnte giandtdifero ; involneri sqnamis lineari-aenmin- 

 atis, paucis exterioribus brevioribns: radii tloribns 20-40; lignlis 

 lilacinis vel subcaerulis. angnstis, 5 mm. longis: disci tloribns nnmer- 

 osis; corolla glabra vel sparse pnbernla : tnbo tennissimo. ca. 1 mm. 

 lougo ; f ancibns cylindraceis. 3-5 mm. longis : styli ramis oblongis. 

 obtnsis : acheniis linearibus. compressis. dense breviter villosis : pappi 

 setis coroUae aeqnilongis. pancjs exterioribns nudto brevioribns. 



Dry ridges at Trout Meadows, eastern Tulare County, California, in the 

 Transition Zone of the Sierra Nevada Mountains at an altitude of about 

 19S0 m., July 16, 1908, H. M. and G. E. Hall no. S3S6 (Herb. Univ. Calif. 

 no. 180112), type. 



The aiWnities of this species are plainly with E. miser Gray, bnt 

 aside from the conspicnoiis rays it ditfers in the very slender, freely 

 branched rootstocks. slender stems, and long-pednucnlate heads. The 

 stems are as slender as in E. Eltneri Greene, bnt they are more leafy 

 and not at all decnmbent. and the pnbescence is very different from 

 what it is in that species, being more copious and spreading on the 

 foliage and decidedlv irlandidar on the intlorescence. 



Arnica venosa sp. nov. 



Perennis. e rhizomatibns reptantibns : caidibns simplicibns. inter- 

 dnm stiperne 1-3 ramosis. 3-4.5 dm. altis. tuidiqne breviter pilosis. 

 superne glandnlosis. prope apicem foliosis : foliis inferioribns sqnamosis. 

 ovatis. ca. 5 mm. longis. oppositis. basi connatis longe amplexicatilibns ; 

 canlis foliis oppositis arete sessilibns. basi latis non cordatis, ellipticis. 

 4—6 cm. longis. 1.5-3 cm. latis. acntis. valde dentatis vel snpremis 

 integris. sparse breviterqne pilosis, rigidis. snbtns valde venosis : pednn- 

 cnlis 3-8 em. longis: capitnlis 18-20 nnn. altis. eradiatis: involncris ca. 



