( x 93) 



trations, PI. 32 of the West American Oaks, anj-body can 

 see that they are not the same. I think that the leaf, from 

 which Fig. 14 of J^. undulata, PI. 385, was drawn was 

 taken from a specimen of J^. venustula. ^uercus venustula 

 is in every respect nearest to J^. Fendleri Liebm. and should 

 therefore have been included in J^. undulata according to 

 Professor Sargent's view of that species. J^. venustula dif- 

 fers from 4L- Fendleri only in one respect, viz. : the nar- 

 rower more obtuse lobes of the leaves. I have seen no speci- 

 mens of £>j venustula except three sheets of Greene's original 

 collection. These agree perfectly with each other and with 

 Greene's illustration. 



Under J^. undulata we find in Sargent's Silva the following 

 synonyms: J?, undulata Torr., J^. Fendleri Liebm., J£. 

 grisea Liebm., 4>. pungens Liebm., J^. oblongifolia Torr. 

 (Mex. Bound. Surv. ; not Sitgreave's Rep.), j£. undulata ft 

 obtus (folia A. DC, J^. undulata y pedunculata A. DC, J^. 

 Emory i Porter & Coulter, ££. undulata y Jamesii Engelm., 

 J^. undulata (> Wrightii Engelm., J^. undulata var. fungens 

 Engelm., J^,. undulata var. grisea Engelm., J£. undulata var. 

 oblongata Engelm., J$>. turbinella Greene (in part). 



If all the plants represented by these names constitute one 

 species, we can not consistently let J^. Engelmannii stand 

 distinct from J^. oblongifolia, nor <£>. Arizonica from J^. retic- 

 ulata, nor j^. Toumeyi from j£. dumosa. In fact we must 

 reduce all these species to «£. undulata, for both J^. oblongi- 

 folia and J^. Arizonica are indeed too close to «£. £m<sa in 

 the list above. Let us see, therefore, what the cited syno- 

 nyms represent. 



j£. undulata Torr.,* as represented by Dr. James' plant, 

 many specimens from Texas and a few from Colorado, New 

 Mexico and Arizona, has oblong oval leaves, 4-5 dm. long, 

 firm and apparently more or less persistent, pale bluish green 

 and shining above, light brownish, stellate-puberulent and 

 distinctly reticulate beneath, sinuately dentate with sharp mu- 

 cronate but not spinulose-tipped teeth, acute at the apex and 



*Ann. Lye N. Y. 2 : 248. 1828. 



