THE GKNUS FRAXINUS. 207 



This variety differs from the type in the more coriaceous, slender- 

 stalked and often more coarsely serrate leaflets and in the less densely 

 pubescent or glabrescent branchlets and leaves. In the type speci- 

 men the leaflets are generally elliptic, 4.5-5.5 cm. long and 2. .5-3 cm. 

 broad, broadly cuneate at the base and abruptly and obtusely pointed, 

 indistinctly serrulate, slightly and sparingly villose on both surfaces, 

 pale yellowish green above and paler and reticulate beneath; a few 

 leaves have obovate leaflets, truncate at the apex and rather coarsely 

 dentate; the fruits are spatulate, 1.8-2.5 cm. long and 5-6 mm. 

 broad below the emarginate apex. Hall & Chandler's No. 7328 is 

 nearest to the type in shape and size of the leaflets, but it is nearly 

 glabrous.^ 



This variety does not seem to occur in Arizona, but some specimens 

 referred to Aar. Toumeyi, as Jones's No. 4235 and Toumey's No. 274, 

 ha^'e rather coriaceous leaflets and may be considered transitions to 

 var. coriacea. 



Fraxinus velutina var. glabra, n. var. 



Fra.vlnm glabra Thornber in U. S. Herb. 

 A typo et a varietatibus praecedentibus differt foliis ramulisque 

 glabris et a var. coriacea foliolis tenuioribus subtus vix reticulatis. 



New Mexico. Chaves Co.: near Roswell, alt. 1100 m., August 

 11, 1916, .4. Rehder (No. 348). Dona Ana Co.: Ash Spring, 

 San Andreas Mts., May 24, 1913, E. 0. Wooton (U. S. Nat. Herb. No. 

 661851). Otero Co.: Sacramento, Cloudcroft, alt. 2800 m., 

 August 20, and alt. 2500 m., August 25, 1916, A. Rehder (Nos. 384, 

 441); Fresnal Canyon, alt. 2000 m., August 24, 1916, A. Rehder 

 (Nos. 409, 409b). 



Arizona. Graham Co.: San Carlos Indian Reserv., June 25, 

 1904, F. r. Coville (No. 1945). Cochise Co.: Huachuca Mts., 

 Tanner Canyon, August 24, 1910, L. N. Godding (No. 817); Miller's 



3 Some Calif ornian specimens distributed as F. coriacea do not belong here; 

 they represent a glabrous or glabrescent variety of F. oreqona Nuttall which 

 is apparently identical with F. oregona var. glabra Lingelsheim in Bot. Jahrh. 

 XL. 220 {Vorarb. Monog. Fraxinus, 40) (nomen nudum) (1907). To this vari- 

 ety I refer the following numbers which differ from the type in the glabrous or 

 nearly glabrous branchlets and leaves. Kern Co.: Greenhorn Mts., alt. 

 1000-1200 m., 1897, C. A. Purpus (No. 555.5). SanBernardinoCo.: 

 Lyth Creek Canyon, July 15, 1902, Le Roy Abrams (No. 2741); Cleghorn 

 Canyon, July 6, 1908, Le Roy Abrayns & E. A. McGregor (No. 703). Los 

 Angeles Co.: Liebre Mts., June 20-23, 1908, Le Roy Abrams & E. A, 

 McGregor (No. 400). ■ •• 



