KNowi.TON.l DESCRIPTION OF SPECIES. 73 



Acer ,sp., Kuowlton. 



PL XIII, %s. 1,2. 



Acer sp., Knowltnn, in ■\Ierriain, Univ. Cal., Bull. Dept. Geol., Vol. II, No. 9, p. 

 289, 1901. 



A fragment of a .small, three-lobod leaf showing- a portion of the 

 base, one lateral lobe, and a part of the central lo])e. The length 

 appears to hav'e been about 5 cm. and the width between the lobes 

 about 5.5 cm. It is coarsely toothed. 



Another fragment from the same locality has the base with a short 

 portion of the petiole preserved. It appears to be the same as the 

 other. 



Locality — One and one-half miles east of Claruos Ferry. Collected 

 by Merriam's expedition of 1900. Types in Mus. Univ. Cal. Nos. 

 900, 982. 



Acer Bendirei Lesq. 



Acer Bendirei Lesq., Proc. IT. 8. Nat. Mus., Vol. XI, ].. U, PL V, %. 5; PL VI, fig. 



1; -PL VII, fig. 1; PL VIII, fig. 1, 1888. 

 Acer trilobatum produdum (Al. Br.) Heer. Lesqnereux, Cret. and Tert. FL, p. 253, 



PL LIX, figs. 1, 2, 4 (non fig. 3, which is Platanus dissecia Lesq.). 



This species, as ma}" be seen from the above sjnionymy, was first 

 regarded by Lesquereux as referal)le to the European A. trUohatum 

 productu)/!^ but later was raised to full specific rank. This name was 

 also applied to several leaves from Carbon, Wyoming," but they are 

 clearly not the same as those under consideration. In the Cretaceous 

 and Tertiary Floras (p. 253), Lesquereux records the specimens under 

 discussion as coming from "Currant Creek, John Day Valley, Oregon," 

 This is in error, as the t^q^es are preserved in the paleontological 

 collection of the University of California (Nos. 1797, 1797a, 1797b), 

 and are seen at once to have come from Van Horn's ranch. They 

 are in the characteristic white volcanic tuti', and not the hard, brownish 

 matrix of the Current Creek deposits.^ 



Locality. — Van Horn's ranch, South Fork of John Day River, 12 

 miles west of Mount Vernon, Grant Countv, Oregon. Original mate- 

 rial collected l)y C. D. Voy about ISTO (Mus. Univ. Cal., Nos. 1797, 

 1797a, 1797b); since collected by Maj, Charles E. Bendire (U. S. Nat. 

 Mus., No. 2413), Dr. John C. Merriam (Mus. Univ. Cal., Nos. 850, 

 851), and F. H. Knowlton (U. S, Nat, Mus., Nos, 891:0-8948). 



aTert. Fl., p. 261, PI. XLVIII, figs. 2, 3a, 1878. 



60n PI. LIX of the Cretaceous and Tertiary Floras, Lesquereux givesfour figures vvhichhe refers to 

 Acer trilobatum productum {now A. Bendirei), and all the specimens are said to be from the same 

 locality, namely, "Currant Creek, Oregon." This is in error in regard to fig. 3, the original of which 

 is preserved with the others in the Paleontological Collection of the University of California (No. 1835) . 

 This fragment was found to fit into and form a part of the same individual that is figured in the 

 Auriferous gravel flora (PI. V, fig. 3) under the name of Aralia Zaddachi? Heer. And further it was 

 found that when so fitted together they produce a leaf that must bo referred to Platanus disseeta. 

 The locality, plainly marked on the back of each fragment, is Table Mountain, California. 



