156 BOTANICAL SYNOPSIS 



Flowers in long pendulous racemes, yellow, papilionaceous. 

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

 Europe.— Vol. I., p. 17. 



Bobinia 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 flat pod with a ventral 

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



NATURAL ORBER, ROSACEA (ROSE FAMILY). 



Prunus 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. l.,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. insititia 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, i\ 113. 



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 



