2 Coville — Hihes ColoviHh'iisc, (in Undescribed Cnrrdnf. 



Twin Lakes, f and these specimens are now known to represent 

 two distinct species. Dr. Rothrock cited also, as synonymous, 

 a third plant, Watson's liihes sauginneum variegatum,\ a cita- 

 tion which led Dr. . Watson later to reject Dr. Rothrock's 

 species. § The name liihes tooljii has consequently disappeared 

 from most botanical works. In this confusion it becomes neces- 

 sary to restrict the use of the name and I therefore designate as 

 the type of Mibes v^olfii the flowering specimen in the National 

 Herbarium collected by John Wolf in June, 1873, at Mosquito 

 Pass, a few miles east of Leadville, Colorado, at an elevation 

 between 10,000 and 11,000 feet. I have found Mibes v-olfii in 

 herbaria under the n^wM^a pr ostr at t mi, viscossissimtim, and /uid- 

 soni'amfm, with none of which species is it very closely related. 

 Its nearest relative is Watson's liibes sangidneiim. viarieg<ittmi, 

 a plant centering about the northern Sierra Nevada of Califor- 

 nia and distinct from true sanguineiim. There is a question as 

 to the proper name of this plant, which at the present time can 

 not be satisfactorily determined. It may, therefore, continue 

 to be called liibes sangimieum variegatuni until its correct 

 name as a species can be definitely ascertained. Both variega- 

 Umi and vHdJii are plants with unarmed stems, almost smooth, 

 maple-like leaf-blades, racemose inflorescence, the bracts ovate 

 or obovate and with tbin hyaline margins, ovaries and fruit 

 bearing glanduliferous hairs, flowers greenish or reddish, and 

 calyx-tube not more than 3 mm. long and shorter than the lobes. 

 IVoJji/i differs from vnriegatiim, however, in its usually green- 

 ish-white calyx about 5 mm. long, its tube about 1 mm. long 

 and the lobes about 3 or 4 times the length of the tube; petals 

 broadly rhombic-obovate, about a third the length of the calyx 

 lobes; and anthers, when fully expanded, a little l)roader than 

 long, I have seen no mature fruit of the species. Jiibes s(ni- 

 giiineum varieg<ihim has a usually red calyx about 6 mm. long, 

 the tube about 2 mm. long, and the lobes about 1^ to 2 times 



f The localities are attached to the proper specimens through a com- 

 parison of tlie data furnished by Rothrock's orioinal description, by tlie 

 label on the specimens, and by the references to Wolf's itinerary given 

 in the Report of the Secretary of War for 1873, volume 2, part 2, pages 

 483 and 484. 



itWats. Bot. KingSurv. 100. 1871. 



gWats. Bibl. Ind. 337. 1878 



