FOSSIL FAUNA AND FLORA OF THE FLORISSANT SHALES 171 



RutacecR (i species) 

 Zanthoxylum spireafolium Lx., does not look, from the figure, as if it belonged 

 here, but it may do so. It is said to be closely allied to certain fossil species des- 

 cribed by Heer from Europe. 



LeguminoscB (7 species) 

 Lesquereux described seven species, referred to the genera Acacia, Cercis, 

 Cytisus, Leguminosites, Mimosites and Podogonium; while he recognized species 

 of Dalbergia and Cassia described by Heer. Podogonium americanum Lx., is 

 listed by Kirchner, but apparently in error; it is a species of the Laramie and Mon- 

 tana formations in Wyoming. Cercis parvijolia Lx., was found by Messrs. Hen- 

 derson and Ramaley in the railroad cut east of Florissant station. The Florissant 

 Dalbergia resembles the living D. melanoxylon G. and P. which I have received 

 from Ceylon, through the kindness of Mr. E. E. Green. Mimosites linearis (Lx.) 

 Knowlton, has a curiously strong superficial resemblance to Dalbergia purpurea, 

 but the type of leaf is a common oue. 



Rosaceaece (6 species) 

 Rosa hillice Lx., is a very interesting trifoliate species. The genus Amelan- 

 chier is represented by A. typica Lx. and A. scudderi Ckll. Amygdalus is repre- 

 sented by A. gracilis Lx., reported also from the Green River beds of Wyoming; 

 but Lesquereux figures leaves from both localities, and they no not appear to me 

 to belong to the same species. Crataegus has two species, C. lesquereuxi Ckll.,' 

 and C. flavescens Newberry. The latter is also reported from the John Day Val- 

 ley, Oregon. 



Altingiacece 

 Liquidambar europceum Al. Br., a common Miocene plant of Europe, is listed 

 by Knowlton and Kirchner from Florissant, and is also reported from the John 

 Day Miocene. There is apparently some mistake, however, as Lesquereux cites 

 it from Wyoming, not from Florissant, and Knowlton omits this locality, while 

 giving no other source of information. 



Cunoniacece (3 species ?) 

 Lesquereux describes three species of Weinmannia. They certainly look 

 different; but the common neotropical species of today, W. pinnata, must be very 

 variable as it has received seven specific and three varietal names. 



Magnoliacece 

 Kirchner refers here certain fruits described by Lesquereux, but there is no 

 real evidence that the family was represented at Florissant. Carpites milioides 

 Lx., looks like a Lepidium. 



' CratcBgus lesquereuxi Ckll.=C. acerifolia Lx.. 1883, not of Moench, 1785. 



