lyo UNIVERSITY OF COLORADO STUDIES 



AraliacecR (2 species) 

 Aralia dissecta Lx. is based on a very large leaf, not at all resembling the ordi- 

 nary species of the genus. Hcdera marginata Lx. is a species of somewhat doubt- 

 ful generic position. 



MalvacecE (i species) 

 Malvastruni exhumatum Ckll. has been based on a specimen in the collection 

 of the University of Colorado. It resembles a species living in New Mexico. 

 Sterculiacecs (i or 2 species) 

 Sterculia rigida Lx. and S. engleri Kirchner have been described. They do 

 not appear to differ materially. 



Tiliacece (i species) 

 Tilia populijolia Lx. is a species with fine large leaves. 

 Rhamnacem (5 or 6 species) 

 Six species-are described, as Paliurus florissanti Lx., P. orhiciilatiis Saporta, Rhamnus 

 kirchneri Ckll.,' R. notatus Saporta (?), R. olecBJolius Lx., and Zizyphus obtusa 

 Kirchner. 



The species of Saporta were originally described from Europe, and their recog- 

 nition at Florissant is provisional. 



SapindacecB (5 or 6 species) 

 Lesquereux has described five species of Sapindiis; and a fruit is referred with 

 doubt to Dodoncea. 



AceracecB (i or 2 species) 

 Kirchner describes Acer florissanti from an excellently preserved leaf, and A. 

 mysticum from a fruit. They may very well belong to the same species, of course. 

 A leaf of A. florissanti was found southwest of Florissant by Messrs. Henderson 

 and Ramaley. 



StaphyleacecB (i species) 

 Represented by Staphylea acuminata Lx. 



Ilicacea (6 species) 

 Lesquereux has described six species of Ilex; Kirchner adds a seventh, /. rigida, 

 but it appears to me to be a synonym of I. knighticEJolia Lx. Ilex quercijolia Lx., 

 1883, not of Meerburgh, 1798, may be called /. leonis. 



CelastracecB (4 species) 

 Lesquereux describes Celastrus fraxiriifolius and C. lacoei, and records C. greitk- 

 ianus Heer, a European species. Another form is named Celastrinites elegans Lx. 

 Anacardiacecs (11 species) 

 Ten species of Rhus were described by Lesquereux, and Kirchner adds another, 

 R. rotundifolia. These include typical Rhus (R. coriarioides), Schmaltzia {S. 

 vexans) and Cotinus (C. jraterna). m. 



^Rhamnus kirchneri Ckll. = J?, ellipticus Kirchner, 1898, not R. elliptica Swartz, 1788. 



