BOTANICAL SYNOPSIS 155 



May to July. Europe, North Africa, and Siberia. Vol. II., 

 p. 25. 



R. Frangula L. Alder Buckthorn. Without spines. 

 Leaves scattered, obovate, entire. Flowers greenish white, 

 parts mostly in fives. Fruit with two stones. May, 

 June. Europe, North Africa, and Siberia. Vol. II., p. 25. 



NATURAL ORDER, ACERINEJE (MAPLE FAMILY). 



Acer Pseudo-Platanus L. Sycamore. Bark smooth. Leaves 

 opposite, palmately five-lobed, unequally serrate, four to 

 eight inches across, dull. Flowers in pendulous clusters, 

 green. Fruit a two-winged samara ; wings divergent, scimi- 

 tar-shaped, one and a half inches long. May, June. Middle 

 Europe and West Asia. Vol. I., p. 153. 



A. campestre L. Maple. Bark furrowed, corky. Leaves 

 opposite, cordate, two inches across, palmately five-lobed, 

 lobes obtuse ; stalks red. Flowers in erect, terminal 

 clusters, green, downy. Fruit a two-winged samara, wings 

 spreading horizontally, oblong, half an inch long, reddish. 

 May, June. Europe, from Denmark southward, and West 

 Asia. Vol. I., p. 137. 



NATURAL ORDER, HFFFOCASTANEJE {BUCK-EYE 



FAMILY). 



^Esculus Hippocastanum L. Horse-chestnut. Bark smooth. 

 Leaves opposite, palmate, of seven obovate-cuneate leaflets, 

 serrate, one foot to two feet across. Flowers in an erect thyrse, 

 white, splashed with pink and lined in yellow, with seven 

 stamens. Fruit a spinous leathery capsule, containing two 

 to four brown chestnuts (seeds). May. Probably native of 

 the Balkan Peninsula. Vol. I., p. 9. 



NATURAL ORDER, LEGUMLNOSA? {PEA AND BEAN 



FAMILY). 



Cvtisus Laburnum L. Laburnum. Bark smooth, grey- 

 green. Leaves scattered, pinnate, of three elliptical leaflets. 



