126 HlPPOCASTANACEAE. 



37. Lobes moderately separated A. platanoides. 

 Lobes separated nearly to base. A. platanoides laciniatum. 



38. Leaves 5-lobed. 39. 



Leaves 3-lobed, purple, then green. A. platanoides Stollei. 



39. Leaves from green becoming red. A. platanoides rubrum. 

 Leaves red becoming green. A. platanoides Schwedleri. 



40. Leaves white-mottled. A. platanoides albo-variegatum. 

 Leaves margined with white or yellow. 41. 



41. Margin white, young leaves red. A. platanoides Drummondii. 

 Margin yellow. 42. 



42. Young leaves red. A. platanoides Wittmackii. 

 Young leaves green. A. platanoides aureo-marginatum. 



43. Tree round-topped. (Sycamore maple). 44. 



Tree oblong-conical. A. pseudoplatanus nervosum. 



44. Leaves not variegated. 45. 

 Leaves mottled. 46. 



45. Leaves green. A. pseudoplatanus. 

 Leaves yellow. A. pseudoplatanus Worlei. 

 Leaves purple. A. pseudoplatanus purpurascens. 



46. Leaves green. A. pseudoplatanus bicolor. 

 Leaves red or purple when young. 47. 



47. Uniformly mottled. A. pseudoplatanus albo-variegatum. 

 With large and small spots. A. pseudoplatanus quadricolor. 



48. Leaves glaucous beneath, glabrous. A. monspessulanum. 

 Leaves green and usually pubescent beneath. 49. 



49. Not variegated. A. campestre. 

 Leaves mottled. A. campestre argenteo-variegatum. 



50. Petioles widened at base so as to conceal the buds, 



often with stipules. (Black maple). A. nigrum. 



Petioles not concealing the buds. 51. 



51. Tree ovoid. (Sugar maple). A. saccharum. 

 Tree columnar. A. saccharum monumentale. 



Family HlPPOCASTANACEAE. Horsechestnut Family. 



A small family of little use except for planting, but in- 

 cluding some excellent shade and street trees. 



