BOTANICAL SYNOPSIS 157 



red. Few suckers. May. Europe to the Himalayas .--Vol. I., 

 i>. 57. 



P. Ceraaus L. — Dwarf Cherry. Leaves erect. Flowers 

 in umbels. Fruit round, red, acid, and juicy. Many suckers. 

 May. Not extending into Scotland or Africa.— Vol. I., 

 V- 57. 



P. Laurocerasus L.— Common or Cherry Laurel. Bark 

 dark green. Shoots green. Leaves evergreen, alternate, 

 conduplicate, yellowish green. Flowers in erect racemeti, 

 shorter than the leaves, white. Fruit a smooth, blacki 

 ovate-acate drupe. April, May. Persia, the Caucasus, 

 and the Crimea.— Vol. II., p. 49. 



Cratsegus Ozyacantha L. — Hawthorn. Bark smooth, dull 

 grey. Branches crowded, spinous. Leaves very variable, 

 obovate-cuneate, three- to four-lobed. Flowers in sessile, 

 corymbose cymes, white, with pink anthers, fragrant. Fruit 

 a sub-globose pome, usually crimson, with white mealy flesh 

 and a bony core. May, June. Europe, North Africa, 

 Siberia, West Asia to India. Introduced into North America. 

 —Vol. IIL, ;'. 49. 



Sub-species C. oxyacantTioides Thuill. — Flower-stalks and 

 calyx-tube smooth. Carpels, two to three.— Vol. III., p. 50. 



Sub-species C. nionogyna Jacquin. — Flower-stalks and 

 calyx-tube downy. Carpel solitary. — Vol. III., p. 50. 



Mespilus genuanica L. — Medlar. Much branched, spinous. 

 Leaves dowuy beneath. Flowers solitary, white, one and 

 a half inches across. Fruit large, globose, surmounted by 

 persistent leafy calyx and with a five-chambered bony core. 

 May, June. Europe, Asia Minor, Persia.— Vol II., p. 73. 



Pyrus communis L. — Pear. Bark rough. Branches more 

 or less pendulous and spinous. Leaves alternate, ovate- 

 oblong, acute, serrate, on slender stalks. Flowers white, 

 one to one and a half inches in diameter. Fruit a turbinate 

 pome, one to two inches long, gritty. April, May. Europe, 

 from Ireland and Denmark to the Balkans. — Vol. II, p. 129. 



Sub-species P. Pyraster Bor. — Leaves acuminate, downy 

 beneath when young. Fruit obconic at the base.— Vol. II., 

 p. 131. 



