168 DESCRIPTION OF SPECIES. 



PIMELE^E. 



PIMELEA, Banks. 



Pimelea tlelicatula, sp. nov. 

 Plate XXXIII, Figs. 15, 16. 



Leaves membranaceous, nearly sessile, spatulate, short - pointed or apicalate; 

 secondary nerves emerging at an acute angle of divergence, branching on the lower 

 part, variable in distance, separated by intermediate short veinlets; nervation cainpto- 

 drome. 



The leaves vary from 3 to 5 J centimeters long and from 8 to 13 mil- 

 limeters broad in the upper part, near the apex, where they curve upward 

 in narrowing to a short point, and from which part they are gradually 

 narrowed downward to the very short petiole. 



The species is closely allied to P. (Eningensis, Heer, "Fl. Tert. Helv..** 

 ii, p. 93, pi. xcvii, figs. 2-10, which has smaller leaves less gradually nar- 

 rowed downward and no petiole. 



Hah.— Florissant. U. S. Geol. Expl. Dr. F. V. Harden. 



OLEACEJL 



OLEA, Linn. 



Of the numerous living species of this genus, one only, Olea Ameri- 

 cana, inhabits the North American Continent; three species are European; 

 the others are found in Tropical Asia and South Africa ; Japan has one 

 species. 



The leaves of Olea are opposite, petioled,eoriaceous, persisting, oblong- 

 oval, obovate or lanceolate, very entire; the nervation pinnate, and the 

 flowers fasciculate in the axils of the leaves. 



Olea prsemissa, sp. nov. 



Plate XXXIII, Fig. 1. 



Leaves coriaceous, lanceolate, larger below the middle, narrowed to a very short 

 petiole ; flowers in simple or rarely compound racemes. 



The leaves average 5 centimeters in length and 1 centimeter in 



width below the middle, from which they are gradually tapering upward 



to a blunt point. The flowers are short-petioled, either single or in short 



slightly compound racemes. This character essentially separates this 



