172 Rydberg : Studies on Rocky Mountain Flora 



Texas: Lower Rio Grande, 1852, Parry (Mexican Boundary 

 Survey), 6f;8. 



4. Senecio multilobatus Torr. & Gray; Gray, PI. Fend. 109. 



1849 



The type of this species is in the Torrey herbarium and very 

 unhke the plant regarded by Gray as ^'. inultilobatus. It is char- 

 acterized by its fleshy leaves and stands perhaps nearer to 5. 

 covipactiis than to the group with which it was associated by Dr. 

 Gray. I have placed it in this group on account of its pinnatifid 

 basal leaves. The earliest of these are, however, entire, in the 

 same manner as they occasionally are in 5. rosidahis. This analogy 

 and the close relationship to 5. coiupactus undoubtedly made Prof 

 Greene name Baker, Earle and Tracy's specimens " Senecio coiu- 

 pactus Rydb., verging towards 5. Fendleriy These specimens 

 differ from Fremont's plant only in the fact that the basal leaves 

 are shorter and less divided. Eastwood's specimens are exactly 

 like the type. The base of these specimens shows that the plant is a 

 perennial rather than an annual as stated in the original descrip- 

 tion. It grows at an altitude of about 2000 m. [Plate 6, f 11.] 



Utah : Uintah River (a tributary of Greene River), Fremont, 

 §4.g (type in the Torrey herbarium) ; Ogden, 1871, Hayden Sur- 

 vey ; South Utah, /. E. Johnson. 



Colorado: Grand Junction, 1892, A. Eastwood; Mancos, 

 1898, Baker, Earle & Tracy, 4-1-6 ; Dolores, 1892, C. S. Crandall; 

 South Park, 1871, W. M. Canby. 



5. Senecio Nelsonii Rydb. Bull. Torr. Club, 24 : 483. 1899 



Prof Greene in Pittonia, 4 : 112, devotes over a page to this 

 species, claiming it to be the same as 5. Fendleri, and criticises 

 both Prof Nelson and myself We had, however, both investi- 

 gated the matter thoroughly before the species was published. In 

 claiming that the two species are the same. Prof Greene must either 

 not know one of the plants or both, or else do it for the purposes of 

 finding fault. 5. Nelsonn has the leaf form of S. Fendleri, but 

 there ends the similarity. In the former the caudex is short, not 

 woody, and with numerous fibrous roots, placing it nearer to 6". 

 niultilobatns and 5~. conipactus, while S. Fendleri has a very thick 



