132 University of California Publications in Geological Sciences 



Family GROSSULARIACEAE 

 Kibes galeana n. sp. 



(PI. 23, fig. 14) 



Description. — Leaf deeply 3-lobed, the lobes widening above ; base subcordate ; leaf blade 1.2 

 cm. long and 1.4 cm. wide; petiole thin, 8 mm. long; midrib thin, curved below and thinner above; 

 2 main primaries from the top of the petiole on one side of the blade, and one primary and a 

 strong tertiary on the other; a strong secondary diverging at 70° from each side of the midrib 

 near its center, and supplying the uppermost 2 lateral lobes, which are rounded at the apex, 

 secondaries entering the uppermost lobes of the central lobe from near the apex ; several tertiaries 

 departing along the midrib ; finer nervation irregular and coarse ; margin entire, the apices of 

 the lobes notched; texture thin-medium. 



Discussion. — This leaf and its counterpart appear to represent gooseberry rather 

 than currant. There is so much overlap in the leaf variation of the living species 

 that it is not possible to single out any one as the closest counterpart of the fossil. 

 It is perhaps sufficient to note that the fossil leaf is very similar to those produced 

 by the living Ribes (Grossularia) roezlii Regel, a common shrub in western Nevada 

 and California. 



This species is named for Hoyt S. Gale, who, in the summer of 1914, made the 

 small but significant collection of Verdi plants now in the U.S. National Museum. 



Occurrence.— Verdi, Nev.: U.C. Mus. Pal. (loc. P102), holotype no. 2018. 



Family ROSACEAE 



Prunus moragensis Axelrod 



(PI. 23, figs. 11-13) 



Prunus moragensis Axelrod, Carnegie Inst. Wash. Pub. 553, p. 140, pi. 30, figs. 6, 8, 10, 1944; 

 Axelrod, Univ. Calif. Pub. Geol. Sci., vol. 33, p. 301, pi. 28, fig. 15, 1956. 



Two long-oval leaf impressions with finely serrate margins and thin, looping 

 secondaries, are similar to leaves produced by the living Prunus emarginata 

 (Douglas) Walpers. In addition, an impression of a broadly oval nut resembles 

 those formed by the living bitter cherry, and is therefore assigned to the same 

 species. Bitter cherry is widely distributed in the western United States, chiefly in 

 the montane forest and on its margins, where it commonly forms dense thickets on 

 stream banks and in moist swales. 



Occurrence. — Verdi, Nev.: U.C. Mus. Pal. (loc. P102), hypotypes nos. 2019- 

 2021. 



Family RHAMNACEAE 



Ceanothus precuneatus Axelrod 



(PL 23, fig. 17) 



Ceanothus precuneatus Axelrod, Carnegie Inst. Wash. Pub. 476, p. 120, pi. 11, fig. 7, 1939; 

 Axelrod, Carnegie Inst. Wash. Pub. 553, p. 261, pi. 45, figs. 2, 3, 1944; Axelrod, Carnegie Inst. 

 Wash. Pub. 590, p. 153, pi. 3, fig. 15, 1950; Axelrod, Univ. Calif. Pub. Geol. Sci., vol. 33, p. 

 308, pi. 32, fig. 8, 1956. 



An impression of a coriaceous, obovate leaf with thin, subparallel secondaries 

 diverging into the upper part of the blade, appears referable to this species. It 







