156 BOTANICAL SYNOPSIS 



Flowers in long pendulous racemes, yellow, papilionaceous. 

 Fruit a silky green pod, becoming black. May. Central 

 Europe. Vol. I., p. 17. 



Robinia Pseudacacia L. Acacia. Bark furrowed. Leaves 

 pinnate, of from four to nine pairs of egg-shaped leaflets, 

 and a terminal one, each about an inch long, with two 

 stipular thorns. Flowers in long pendulous racemes, white, 

 fragrant, papilionaceous. Fruit a Hat pod with a ventral 

 flange. June, July. Carolina to Canada. Vol. III., p. 129. 



NATURAL ORDER, ROSACEA {ROSE FAMILY). 



Primus communis Hudson. Plum. Bark smooth. Branches 

 spinous. Leaves alternate, convolute, variable. Flowers 

 solitary or in pairs, shortly stalked, white. Fruit a 

 glaucous, purple, black, or yellow drupe. March, April. 

 Europe, West Asia, and North Africa. Vol. I., p. 113. 



Sub-species P. spinosa L. Sloe or Blackthorn. Bark 

 black. Branches numerous. Flowers preceding leaves. Drupe 

 globose, erect, black, half an inch in diameter. Europe. 

 Vol. L, p. 114. 



Sub-species P. msititia L. Bullace. Bark brown. 

 Branches fewer, less spinous. Flowers with the leaves. 

 Drupe globose, drooping, yellow or black, over three-quarters 

 of an inch in diameter. Europe, North Africa, and Western 

 Asia. Vol. I., ] 118. 



Sub-species P. domestica L. Plum. Bark brown. 

 Branches mostly without spines. Drupe oblong, drooping, 

 black, an inch or more in diameter. Western Asia. Vol. I. 

 p. 113. 



P. Padus L. Bird Cherry. Bark smooth, grey, astringent. 

 Leaves alternate, conduplicate, with glandular serrations. 

 Flowers in pendulous racemes, white. Fruit a small, black, 

 round, polished, bitter drupe, with a wrinkled stone. May. 

 Arctic Europe and Siberia, North Africa, and the Himalayas. 

 Vol. I , p. 57. 



P. Avium L. Wild Cherry, or Gean. Leaves drooping. 

 Flowers in umbels. Fruit heart-shaped, bitter, black or 



