I9U-] SOUTHEASTERN NORTH AMERICA. 195 



and South America. The other sections into which the genus is sub- 

 divided were not recognized among the fossil forms. 



The allied genus Cotinus with two or three existing species in 

 Eurasia and North America is probably represented by some of the 

 fossil forms referred to Rhus, c. g., Saporta considers Rhus anti- 

 lopum Unger from the Aquitanian of Kumi as a species of Cotinus. 

 This author has also described Cotinus palccocotinus, and Cockerell 

 has described Cotinus f rater na from the Miocene of Florissant, 

 Colorado. 



The genus Pistacia with five existing Mediterannean species and 

 one each in eastern Asia and Mexico has about fifteen known fossil 

 species the oldest, of doubtful value, coming from the Raritan of 

 Staten Island. A second Cretaceous species is found in the Laramie 

 of Colorado. Europe enters the record with a Ypresian species from 

 Alum Bay. There are three Oligocene species in France and seven 

 Miocene species in France, Bohemia, Styria, Galicia, and Transyl- 

 vania. There is a Pliocene species in Styria, an extinct Pleistocene 

 species on the Island of Madeira, and the existing Pistacia lentisens 

 Linne in the Pleistocene of the Island of Santorin. 



The genus Anacardites Saporta (Anacardio phyllum) has been 

 used as a form-genus for fossil Anacardiaceas of uncertain generic 

 relationship. As used by Saporta it represented fossil forms resem- 

 bling existing species of Mangifera, Anaphrenium, Spondias, Como- 

 cladia, Holigarna, etc., but not determinable with certainty. Heer 

 has described a supposed species of Anacardites from the Atane 

 beds of West Greenland. There are two species in the Sparnacian 

 and one in the Ypresian of France and seven well marked species in 

 the Wilcox. There are two or three Oligocene species in France 

 and Germany and two or three Miocene species in France and 

 Styria. Felix has described petrified wood from the Eocene of the 

 Caucasus which he refers to Anacardioxylon, a type also repre- 

 sented in the Oligocene of Antigua in the American tropics (species 

 compared with existing genus Spondias). 



The floral genus Heterocalyx Saporta {Trilobium Saporta, Ela- 

 phrium Unger, Getonia Unger) which occurs at a number of horizons 

 in the Oligocene of France, Croatia, and Styria is represented by a 

 second species in the Wilcox. Saporta compared it with the South 



