ROSACEA 



Insect Pests: — Mottled Umber Moth (Hibernoma defoliaria), March 

 Moth (Auisopterijx cescularia). 



Leaves attacked by Plum Powdery Mildew (Uncinula Prunastri), Plum- 

 leaf Blotch (Polijstigma rubra). Galls occur on the leaves of Sloe, Bullace, 

 Damson, Greengage, and Plum, caused by a Mite (Eriophyes similis). 



GEAN, Primus Avium. 



Woods. May, June. 



Flowers white, up to 1J in. diam., in an umbel ; Calyx tube contracted 

 at mouth, lobes entire ; Corolla open, petals deeply notched, almost obcor- 

 date, flaccid ; Stamens and Pistil maturing simultaneously ; Fruit a drupe, 

 heart-shaped, black or red, sweet or bitter, not very juicy, staining. 



Leaves broadly oval, large, drooping, acuminate, sharply serrate, pubescent 

 beneath, flaccid, thin, two glands at base, pale green, 2-5 ins. x lf-2| ins., 

 petiole long. Autumn tints orange-red, yellow, crimson-red, brown. 



A deciduous tree, 10-40 ft. ; Branches short, stout, satiny, peeling, erect ; 

 no suckers ; a fast-growing tree ; Wood reddish, fine-grained, tough, used 

 for tool-handles and cabinet-work. 



Native of Britain. Thought by some to be the parent of our Black 

 Heart Cherries. 



WILD OR DWARF CHERRY, Primus Ccrasus. 



Woods, thickets, hedgerows. This light and graceful tree, with somewhat 

 scanty foliage, is made conspicuous in spring by its beautiful clusters of white 

 blossoms, and again in autumn, when the crimson hue of its fading foliage 

 irresistibly catches the eye. May, June. 



Flowers white, protogynous, resembling Blackthorn, flowering before 



leaves, in an almost sessile umbel of 2, 3, or more flowers on pedicels 1-2 



ins. long ; buds surrounded by brown scales, the inner ones often becoming 



leaf-like ; Calyx tube not contracted, lobes crenate ; Corolla cup-shaped ; Petals 



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