136 ROSACEJE. [Pyrus. 



2. P. Ma'lus, L. ; peduncles umbellate, style connate below, fruit 

 subglobose indented at the base. Wild or Crab-apple. 



Copses and hedges, from Perth and the Clyde southd.; often a relict of 

 gardens ; wild in Ireland ; Channel Islands ; fl. May. — A shrub or small 

 tree ; branches spreading. Leaves 1-2 in., oblong rounded acuminate or 

 cuspidate at the tip, glabrous or downy beneath when young. Flowers few, 

 1-lg in. diam., pink and white, proterogynous. Calyx-segments woolly. 

 Fruit 1 in. diam., yellow. — Distrib. Europe, W. Asia, Himalaya. 



P. Malus proper {P. acer'ba, DC.) ; young leaves and tube of calyx glabrous, 

 pedicels slender glabrous or nearly so, fruit drooping. — Var. mi'tis ; young 

 leaves tube of calyx and stout pedicels pubescent, fruit erect. 



Section 2. Sor'bus, L. (gen.). Fruit small, 2-5-celled ; cells 1-2- 

 seeded ; endocarp brittle. Flowers in compound corymbose cymes. Styles 2-5. 



3. P. tormina'lis, Ehrh. ; leaves 6-10-lobed serrate glabrous when 

 mature on both surfaces. Wild Service. 



Woods and hedges, local, from Lancashire southd. ; fl. April-May. — A small 

 tree, branchlets and young leaves beneath pubescent. Leaves 2-4 in., 

 oblong-ovate or cordate ; lobes triangular, serrate, acuminate. Flowers 

 ^ in. diam., many, white. Carpels usually 2. Fruit § in., pyriform or sub- 

 globose, greenish-brown, dotted, 2-celled. — Distrib. Europe, W. Asia, 

 N. Africa. — Fruit sold in country markets. 



4. P. Aria, Sm. ; leaves simple or pinnatifid rarely pinnate at the base, 

 deeply lobed white and flocculent beneath. White Beam. 



Copses and borders of forests, from Sutherland to Kent and Devon, local ; 

 ascends to 1,500 ft. in Yorkshire ; fl. May-June. — A bush or small tree, 

 4-40 ft. Leaves 2-6 in., very variable, glabrous above, plaited, coarsely 

 irregularly serrate lobed or pinnatifid. Flowers \ in. diam., in lax corymbs, 

 white. Fruit \ in. diam.,'subglobose, dotted red, usually 3-celled. — Distrib. 

 Europe, N. Africa, N. and W. Asia. 



P. A'ria proper ; leaves broad ovate or oblong crenate-serrate lobulate or 

 hardly lobed beyond the middle, permanently snow-white beneath, nerves 

 8-13 very prominent on each side, fruit § in. diam., scarlet. — Mid. England 

 southd., Ireland. P. rupicola, Syme, has nerves fewer, fruit smaller. 



Sub-sp. P. latifolia, Syme ; leaves from ovate-oblong to suborbicular more 

 or less lobed grey-tomentose beneath, lobes deltoid serrate acuminate, 

 nerves 5-9 on each side less prominent beneath. Sorbus latifo'lia, Pers. P. 

 scan'dica,'Bah. — Considered by foreign authors to be a hybrid between A'ria 

 and tormina'lis; but it is found in Cornwall (Briygs) whereA'ria is not known. 



Sub-sp. P. scan'dica, Syme ; leaves less coriaceous oblong deeply lobed or 

 pinnatifid glabrous above loosely grey-tomentose beneath, lobes oblong or 

 rounded. Sorbus scan'dica, Fries. Arran. 



P. hyb'rida, L. (P. pinnatifi'da, Sm. in part, Sorbus fen'nica, Fries), of Arran, 

 which resembles P. scan'dica, but with the leaves pinnatifid towards the base, 

 is a supposed hybrid between A' Ha and Aucupa'ria, of which latter it has 

 the sweet-scented flower and other characters. 



5. P. Aucupa'ria, Gozrtn. ; leaves pinnate, leaflets serrate glabrous 

 beneath when old or nearly so, fruit globose. Mountain Ash, Rowan- 

 tree. 



