178 



Q. xalapensis var. Cliam. et Schldl. in Linnæa v. 6. p. 354. 

 (sec. spec. in hb. reg. Berol. !) — Q. nitens Mart. et Gal. 1. c. 

 p. 217. coll. Gal. n. 115! — Q. affinis? Scheidvv. hort. belg. 

 Octbr. 1837. pi. 17. sec. Gal. Q. lancifolia Benth. pi. Harlw. 

 n. 422. et 619! (nec Cham. et Schldl.) 



Mexico. Jalacingo, Schiede; Moran p. Real del monte 7500', 

 Galeotti; Real del monte 11000', C. Ehrenberg; Totonilco, 

 Berlandier; Chinautla, Tiuzutlan Dp. Puebla alt. 7—7500', Liebm.; 

 Guatimala Harlweg. 



Species affinis Q. depressæ HB. et Q. laurinæ HB. 



21. Quercus floccosa Liebm.f: foliis crasse coriaceis 

 petiolatis ovatis v. obovatis subacutis v. obtusiusculis basi ob- 

 tusis v. cuneatis inlegerrimis v. antice paucidenticulatis, den- 

 tibus mucronatis, margine cartilagineo revoluto undulatis, supra 

 glabris in junioribus pulverulento-flocculosis, costa pulveru- 

 lenta, subtus flavescenti-floccoso-toinentosis, petiolis villo deter- 

 gibili adspersis supra pianis; fructibus . . . 



Arbor mediocris, folia 4—7" longa, 1^ — 3" lata, pelioli 

 4—9'". 



Mexico, in sylvis monlis Pico de Orizaba alt. 8—10,000'. 

 Species affinis videtur Q. spicatæ HB. et Q. crassifoliæ HB. 



22. Quercus flavida Liebm. f: foliis coriaceis brevissime 

 petiolatis oblongis acutis basi angustatis oblusis v. emarginatis 

 plus minus profunde sinuato-dentatis, dentibus inæqualibus sæpc 

 denticulatis aristatis, supra nitidis glabris, in junioribus floccoso- 

 fusco-villosis, subtus flavido-tomentosis, petiolis supra canali- 

 culatis dense flavido-tomentosis; fructibus... 



Folia 5-6" longa, 3" lata, petioli 1—2'". 



Mexico, decliv. orient. Cordill. Dp. Puebla circa Chinautla 

 et Tiuzutlan alt. 7000'. 



Species quoad folia affinis Q. candicanti Née et Q. calophyllæ 

 Cham. et Schldl. 



23. Quercus oajacana Liebm. : foliis coriaceis brevi- 

 petiolatis ovato - lanceolatis subacutis basin versus altenuatis 



