6o 



ROSACEA 



twigs; leaves glabrescent, simple, 6— io-lobed, cordate, serrate; 

 lobes triangular ; flowers many, small, white, in compound corym- 

 bose cymes ; fruit small, green, spotted with brown, 2-chambered, 

 2-seeded; core brittle.— Woods and hedges in the south of 

 England; uncommon. The mottled fruit is sold under the name 

 of Chequers. — Fl. April, May. Perennial. 



2. P. Aria (White Beam). — A shrub or small tree; leaves 

 large, egg-shaped, irregularly lobed and serrate, snowy-white-felted 

 beneath, with 5—14 veins on each side ; flowers and fruit much 



pyrus torminalis {Wild Service Tree). 



as in the preceding ; but the latter dotted with red. — Chalky banks 

 and limestone rocks. — Fl. May, June. Perennial 



P. rupkola includes those forms with fewer veins and smaller 

 fruit. 



3. P. Idtifolia (Round-leaved White Beam), differing chiefly 

 in its leaves, which are rounded at the base, more lobed and 

 greyish beneath, and its brown fruit, occurs rarely in woods in the 

 west. 



4. P. minima (Least White Beam). — A small, spreading, much- 

 branched, slender shrub ; leaves linear-oblong, pinnately 3 — 4- 

 lobed, ashy-felted beneath ; flowers small, creamy white ; fruit 



