474 Systematic Paleontology 



whole having the aspect of some member of the Leguminosese. Midribs 

 stout, secondaries ascending, camptodrome, seen with difficiTlty, since the 

 leaf texture is coriaceous. This is a poorly marked species of infre- 

 quent occurrence at the same localities where the other species of this 

 genus occur and may simply represent a variant of 8. variabilis. 



Occurrence. — Patapsco Formation. Fort Foote, Maryland; near 

 Brooke, 72-mile post, Aquia Creek, Virginia. 



Collections. — U. S. ISTational Museum, Johns Hopkins University. 



Family CELASTRACEAE 



Genus CELASTROPHYLLUM Goeppert 

 [Die Tertiarflora auf der Insel Java, 1854, p. 52] 



The family Celastracese is a most important one for the paleobotanist 

 embracing a large number of forms, many of which are definitely referred 

 to living genera such as Celasti'us, Pterocelastrus, and Euonymus. In 

 a large number of cases, however, it is impossible to exactly locate the 

 fossil leaf within the family so that the genera Gelastrinites Sap. and 

 Celastrophyllum G-opp. have been used for a large number of leaf -forms, 

 while the genus Celastrinanthiwm Conwentz has been proposed for the 

 flowers, which occur in the Baltic amber. 



The genus Celastrophyllum was proposed by Goeppert in 1854 to 

 include four species from the Tertiary of the island of Java, although 

 a number of authors like Fontaine follow Schimper in crediting the 

 genus to Ettingshausen who wrote considerable about it, including his 

 well-known and beautifully illustrated memoir on the venation of the 

 Celastrinese.* 



It may be briefly defined as follows: Leaves simple, mostly small, 

 elliptical in outline, with entire or toothed margins; secondaried branch- 

 ing at a wide angle, numerous, parallel, connected by arches near their 

 extremities. In the species with toothed margins short subsidiary veins 

 from these arches enter the marginal teeth. 



^ Denks. k. Akad. Wiss., Wien, vol. xiii, p. 43. 



