189 



tibus, peliolis compressis glabris; fniclibus geminis solitariisvc 

 pedunculatis, pedunculo glabrescenle, cupula craterimorpha, 

 glande ovoideo-conica. 



Folia 3-4" longa, \\" lata, petioli 3", pedunculi 4—6", 

 cupula 5-6" alla 6—7'" in diamelro , glans 1" alta 5—7" 

 in diametro. 



Mexico, Chinantla Dp. Puebla, Liebm. 



Species affinis Q. lanceolatæ HB. 



51. Quercus furfuracea Liebm. f: foliis membranaceis 

 peliolatis ovato-Ianceelatis acuminalis acutis basi obtusis v. 

 cuneatis sæpe obliquis ad medium setaceo-denticulalis, supra 

 nilidis glabris, subtus furfuraceis griseis ad costam et axillas 

 nervorum fusco-barbatis, peliolis supra pianis pubescentibus 

 mox glabrescentibus; fructibus brevipedunculatis geminis soli- 

 tariisve , junioribus glabris , cupulæ squainis ovatis obtusis 

 scariosis dense imbricatis puberulis . . . 



Folia 3^-4^" longa, i\—ih" lata, petioli 4—7", pedun- 

 culi 1-3'". 



Mexico, Chinantla Dp. Puebla alt. 7000—7500'. 



Foliorum formå cum Q. Sartorii Liebm. convenit, indu- 

 mento diversa. 



52. Quercus Orimbæ Liebm. f: foliis coriaccis peliolatis 

 elongato-ovatis acuminatis acutis antice sæpius utrinsecus den- 

 tibus 1—3 instructis v. integris, dentibus distantibus latis pa- 

 tulis selaceo-mucronatis margine cartilagineo revoluto undulatis 

 basi obtusis inæqualibus, supra nitidis glabrescentibus, sublus 

 ferrugineis opacis secus costam et ad axillas nervorum fusco- 

 barbatis, petiolis compressis tomentosis ; fructibus axillaribus 

 pedunculatis, junioribus 2—3 alternis laxe spicatis, spica peliolum 

 subæquanle . . . 



Folia 4- 6" longa, 1^—2" lata, petioli 6-9", spica 4— 7'". 

 Mexico, Pico de Orizaba alt. 8—10,000' leg. Liebm. 

 Affinis Q. chrysophyllæ HB. 



13 



