DESCRIPTION OF SPECIES. 113 



DiOSPYROS ? CKLASTROIDES, sp. UOV. 



PI. XX, Fig. 7. 



Leaves large, subcoriaceous, oblong-lauceolate, narrowed to a thick, 

 short, inflated petiole and decurring to it at the base; borders quite entire; 

 median nerve thick ; secondaries numerous, oblique, thin, flexuous, with 

 short, oblique branches on the under side, forking near the borders; nerva- 

 vation dictyodronie. 



The fragment figured, which consists of the lower half of a leaf T*"" 

 long and 4™ broad below the middle, is somewhat inequilateral, being 2"™ on 

 one side and l.S""" on the other, thus resembling by its outline Sapimlna Mor- 

 risoni Lesq. (Cret. and Tert. Fl., PI. xvi. Figs. 1, 2), whose nervation is of 

 a far different type. The secondaries, at an angle of divergence of 40", 

 are thin in comparison to the thick median nerve, flexuous, emitting on the 

 lower side short oblique branches, without connection between themselves 

 or with u})per or lower secondaries, but entering the borders by some of 

 their ultimate divisions. 



The same type of nervation is exhibited by some species of Celastriua', 

 as Celasti-ophyllm)! hdcjicum, Sap. & Mar.,' C. Benedeni Sap. & Mar.,- two 

 species with dentate leaves; but also and more distinctly l^y Doapyros pd- 

 (cogcaa Ett.,^ a leaf larger than that from Kansas but of the same form, and 

 D. primcBva Heer, as figured in Fl. Foss. Arct, vol. 6, 2 Abth., PI. xviii, Fig. 

 11. The petiole, as seen in Fig. 7, is short, 1.5*"° long, inflated at the base. 



Habitat: Ellsworth Count)-, Kansas. No. 83 of the collection of the 

 museum of the University of Kansas; A. Wellington, collector. 



Order SAPOTACEJE. 

 Tribe BUMELIEyE. 



BUMELIAf RHOMBOIDEA, sp. IIOV. 

 PI. LI, Pig. 10. 



Leaf rhomboidal in outline, entire, narrowed from the middle down- 

 ward to a short petiole, upward in the same degree to an obtuse apex; ner- 

 vation pinnate; secondaries oblique, camptodrome. 



The leaf is small, 4"" long, and 2'"° broad in the middle; the seconda- 

 ries obscure, of three pairs only, opposite, parallel, equidistant, observed 



' Flore do Gelinden, R^vis., PI. xm, Fig. 4. -Ibid., PI. xiv, Fig. 2. 



^ Flora V. Bilin, pt.2, p. 45, PI. xxxviii, Fig. 32. 

 MON XVII 8 



