500 



THE AMERICAN NATURALIST [Vol. XL 



Comptonia macroloba (Web. k Wess.) Berry 



Dnjnndra macroloba Wob. & Wes.s., PalaonU xcl. 4. p. 147. i^l. 2.5, fig. 

 11, 18o6. 



Myrica macroloba (Web. & Wess.) Schimp., Pal. Veyet., vol. 2, p. 557, 



Comptonia concisa W^atelet, PI. Foss. Basfs. Paris, p. 123, i^i. 33, fig. 1, 

 1866. 



Myrica concisa (Wat.) Schimp., Pal. Veget., vol. 2. p. .-).-)4. ls72. 



These leaves resemble those which have been (K -ciibcd and fi^^- 

 iired by the respective authors as iiicisa Ludw. '</tiii<linii licor), 

 dn/ajidroides Ung., and acutiluba (diformr iMcrnb.) Hionon.), 

 with this difference that the blade in macroloba i> incised only half 

 the distance to the midrib, surely not a very inipoitaiir cliaracrer 

 in view of the variation in this direction often shown by the existing 



^Yatelet's leaf is not different, except in the foregoing {)articular 

 from tiie fragment which he named Comptonia triom/ulata and 

 which I have referred to Comptonia gaud in ii Heer. 



Both of the forms which I have united to form the species under 

 consideration are fragments of the l)asal portions of single speci- 



it wouid be wi.er lo dixard then, altogether or to refer I'heni to 



The French specimen i- from the louer Koeene wliil.. the l'ni..ian 

 is from the later Tertiarv ( .\(|nitaniaii i, whieh iiiav be considered 



of no great im{)()rtanee in any event, and do not throw any addi- 

 Comptonia antiqua Xilsson 



