(20 9 ) 



the older branches and trunks light gray; that of the latter 

 rough, furrowed and flaky : bud-scales brown, puberulent : 

 petioles about i cm. long, often tinged with red, puberulent : 

 leaf-blades obovate in outline, deeply divided about three- 

 fourths the distance to the midrib, very firm, red when un- 

 folding in the spring ; upper lobes mostly ovate, acute, often 

 lobed or undulate, the lower broadly triangular ; upper sur- 

 face at first sparingly stellate, soon glabrous, dark green and 

 very glossy; lower surface pale green, puberulent, rather 

 strongly veined: fruit subsessile : cup hemispheric, 10-12 

 mm. in diameter: scales ovate and moderately corky-thick- 

 ened on the back; acorn light brown, mostly obtuse. 



This species is characterized by its deeply dissected, very 

 glossv leaves, which are bright red when they unfold. The 

 size of the cup is that of J^. Gambelii, but the acorn is obtuse 

 and the leaves are deeper cleft, darker green and more 

 o-lossv above. I have not seen mature acorns of this species. 

 It grows on mesas and hillsides at an altitude of 2000- 

 2500 m. 



New Mexico : Santa Fe, 1847, Fendler, 809 (Jl, /, type), 

 810b (Jl), 810 (I) ; 4 miles east of Santa Fe, 1897, A. A. & 

 Gertrude E. Heller, 3614 {Jl). 



Colorado: Mancos, 1895, Alice Eastwood; Manitou, 

 1874, Geo. Engelmann (/); Engelmann Canon, 1896, E. A. 

 Bessey (I) ; Cheyenne Mountain, 1895, Mrs. S. L. Clark (I) ; 

 Canon City, 1873, T. S. Brandegee (Jl); Cuchara River, 

 1900, Rydbcrg& Vreeland, 6353 (/)> 6 35 6 (/ ) and 6 357 (/) » 

 Rocky Mountains, Lat. 39-41 , 1862, Hall & Harbour, 313 

 in part. 



Utah: St.. George, 1874, C - C - Parry, 3 (Jl); Ameri- 

 can Canon, S. Watson, 1086 in part. 



Illustrations : PL 2j. f. 2. 



9. Quercus Gambelii Nutt. Journ. Phil. Acad. II. 1 : 



179. 1848. 

 Quercus Douglas ii [i f Gambelii A. DC. Prod. 16 2 : 23, 



in part. 1864. 



£>itercus undulata a Gambelii Engelmann, Trans. St. Louis 



Acad. 3: 382. 1876. 



