DESCRIPTION OF SPECIES— SAPINDACE^. 265 



Sapindns nngfustifolins, Lesqz. 



Plate XLIX, Figs. 2-7. 



Sapinius angusiifolius, Losqs., Annual Report, 18^3, p. 415. 



Leavts inipari-piiiuate ; le.'itiets sligbtly membranaceous, lanceolate, acuminate, very entire, ees- 

 sile or attached to the rachis by a narrowed, winged base. 



The species is represented in numerous specimens by leaflets varying in 

 size from two and a half to nine centimeters long, lanceolate or linear-lance- 

 olate, gradually acuminate, inequilateral, but not falcate, sometimes merely 

 slightly curved at the point, enlarged in the upper side, and narrowed to a 

 sessile base, which is generally prolonged into a short, winged petiole. The 

 rachis is flat, not winged. The nervation and areolation are of the same type 

 as figured by Heer for S. falcifolivs (Fl. Tert. Helv., iii, pi, cxix, fig. Ih), a 

 species to which this one is closely allied, especially differing by the smaller 

 size of its sessile leaves. 



Habitat —Castello's Eanch, Colorado {Prof. E. D. Cope). Middle Park, 

 near Florissant, Colorado {Dr. F. V. Hayden). 



Sapiiidus coriaceus, Lesqz. 



Plate XLIX, Figs. 12-14. 



Sapindus coriaceus, Lesqx., Annual Report, 187.3, p. 415. 



Leaflets hard, coriaceous, oblong-l.anceolate, very entire, more or less distinctly inequilateral, 

 short-petioled ; borders refiexed ; middle nerve thick ; lateral veins scarcely discernible ; surface 

 polished. 



These fragments of leaflets have about the same form as those of the 

 former species, but are easily identified by their hard, leathery texture, and 

 the distinct, though short petiole. They are generally larger, and appear 

 gradually narrowed to a short acumen. All the specimens are broken, and 

 none represent the upper part of a leaflet. The rachis also has not been 

 observed. The lateral veins are scarcely discernible through the texture of 

 the leaves. All that could be seen of them is figured. 



Habitat. — Elko Station, Nevada {Prof. E. D. Cope), in connection with 

 Planera longifolia, Sequoia angustifolia, Taxodium duhium, etc. 



Sapindus Dcutoiii, Lesqx. 

 Plate LXIV, Figs. 2-4. 



Sapindus Bentotii, Lesqx., Annual Report, 1874, p. 315. 



Leaflets with entire or slightly undulate borders, lanceolate, gradually tapering to a long acumen, 

 rounded to the base and narrowed to a short petiole; lateral cervcs dote, parallel, nearly straight lo 

 the bordeis, where they abruptly curve. 



By the shape and the size of the leaflets, this species is related to S. 



