187 



Folia 1| — 2^" longa, 9-12'" Iata, petioli 1'". 

 Costa rica, Volcan de Irasu leg. Orsted. 

 Species affinis Q. eugeniæfoliæ Liebm. 



44. Quercus cilrifolia Liebm. f: foliis coriaceis petiolatis 

 ellipticis obtusiusculis basi obtusis v. obluse cuneatis sæpe inæ- 

 qualibus integerrimis, utrinque glaberrimis nitidis sublus ad 

 nervorutn axillas parce barbatis mox glabris, petiolis marginatis 

 supra pianis glabris; fructibus . . . 



Folia 2£— 4|" longa, 10'" — 1^" lata, petioli 3—6'". 

 Costa rica, Volcan de Irasu, alt. 9000' leg. Orsted. 

 Affinis anteriori. 



45. Quercus retusa Liebm. f: foliis coriaceis brevipetiolalis 

 obovatis apice retusis basi cuneatis in peliolum altenualis inte- 

 gerrimis margine cartilagineo revoluto, supra læte viridibus 

 glaberrimis nitidis, sublus albidis glabrescentibus, petiolis sub- 

 teretibus glabris; fructibus geminis brevipedunculalis, cupulæ 

 turbinatæ squamis dense imbricatis minutis ovatis obtusis, 

 glande .... 



Folia li— 2" longa, 8— 11'" lata, petioli 2", pedunculi 2'". 



Costa rica leg. Orsted. 



Affinis Q. oleoidi Cham. et Schldl. 



46. Quercus Warsewiczii Liebm. : foliis membranaceis 

 brevipeliolatis magnis obovatis acuminatis ullra medium grosse 

 dentatis, dentibus obtusis calloso - mucronulatis, basi cuneatis 

 integris , supra glabris secus costam dense stellato - pilosis, 

 sublus imprimis ad nervos venasque stellato -pilosis, petiolis 

 crassis dense rufo - pilosis ; fructibus pedunculatis solitariis, 

 cupula craterimorpha, glande magna ovoidea utrinque truncata 

 apice umbonata. 



Folia 6—10" longa, 3—4" lata, petioli 2'". pedunculi 2" 

 longi crassi, cupula 9" alta 3£" in peripheria, glans 12-14'" 

 alla 10 — 11"' in diametro. 



Guatimala et Costa rica, leg. Warsewicz (Coll. n. 50 a. in 



