172 E. SPACH. — Repîsio Acerum. 



2-5 poUices lata: pleniinquc latitudine brcviora (raro 4 pollices longa, 5 poUi- 

 ces taniumque lata ) , supra laete viridia , sublucida , subtus glauca ; lobi 3 ter- 

 minales nunc subaequilougi, nuoc summus productior ; lobi 2 infimi jdumadsint, 

 brevissimi ; dentés obtusi v. acuti , plus minusve profundi ; petioli 2-5 pollices 

 longi, saepe purpurascentes. Corymbi multiflori; pediccUi i-3 pollices longi. 

 Flores pallide lutei, 3-4 lineas longi. Sepala elliptica v. oblonga, obtusa. Samarae 

 alae cultriformes v. oblongae, saepe purpurascentes. 



Habitat in Europa média ac australi. (V. v. c. etsp. s.) 



Acer obtusatum. 



Acer obtusatum Ritaib. in Willd. Spec. — Tratt. Arch. i , 

 tab. 14. — Acer neapolltanum Ténor, in Act. Acad. Neapol. 

 1 8 1 9 , 1 , p. 1 2 1 , le. — A. Opalus var. Reichenb. Flor. Germ. exe. 



A. foliis e basi cordata orbieularibus, v. subrotundis, v. ovatis, 

 3-v. 5-lobis, subtus ineano-velutinis; lobis semi-orbicularibus, 

 V. triangularibus , v. triangulari - oblongis , breviter acuminatis , 

 V. acutis, V. obtusissimis, dentatis v. subsinuatis; corymbis sub- 

 sessilibus v. brève pedunculatis , cernuis; pedieellis hirsutis ; 

 petalis spatbulatis ; samarae alis arrectis v. erecto-patentibus. 



Praecedentis forsan varietas , tantumque foliorum tomento ac pedieellis hirsu- 

 tis distincta. 



Habitat in Europa australiori. (V. v. c. et s. sp.) 



û?.) Corymbi sessiles vel subsessiles j cernui , ramosi : pedunculi secun- 

 darii i-Z-flori , penduli. Flores masculi staminihus longe exserds. Sa- 

 mara, loculis ventricosis, vix compressis, coriaceis, subreticulatis, Folia 

 persistentiai^. subpersistentiuj coriaceaj triloba. 



ACEll POLYMORPHUM. 



Acer poljmorphum Nob. — Acer creticum Tratt. Arcb. i , 

 tab. 19 (non Tournef.) (forma parvifolia). — uicer coriaceum. 

 Loddig. Cat. (forma grandifolia ). 



A. foliis orbieularibus , V. ovato-subrotundis, v. ovatis, v. sub- 

 cuneiformibus , trilobis : junioribus subtus pubeseentibus , adul- 

 tis glaberrimis v. in axillis barbulatis; lobis inaequaliter serratis 

 V. sinuolatis, semi-orbicularibus, v. ovato-orbieularibus, v. ovato- 

 triangularibus, v. ovatis, v. oblongis, obtusis, v. aeutis; ovariis 

 pilosjs; samaree glabrœ alis arrectis v. divergentibus. 



