432 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



779. P. spect&bilis. 



Species of which there are only very young Plants in British Gardens. 



P. Sieversii Led. Fl. Alt. 2. p. 222., Don's Mill. 2. p. 647. ; P. nov. sp. 

 Sievers in Pall. Nord. Beitr. 7. p. 292. ; is a bush, with many stems rising from 

 the same root ; with ovate leaves, rather tomentose; and umbellate flowers, suc- 

 ceeded by very acid fruit. A native of Siberia. 



P. ? Schottn Ledeb. Plants in the Hort. Soc. Garden. 



P. stipuldcea Hort. Plants in the Hort. Soc. Garden, raised from seeds 

 received from the Himalayas. 



iii. AV ia Dec. 



Sect. Char., Sfc. Petals spreading, flat. Styles mostly 2 3. Pome globose. 

 Flowers in racemose corymbs ; the peduncles branched. Leaves simple, 

 not glanded, whitely tomentose beneath. (Dec. Prod., ii. p. 635.) Decidu- 

 ous trees, natives of different parts of Europe, and of Asia ; chiefly found 

 on dry, calcareous, or clayey soils, and varying much under cultivation. 

 The species and varieties are in a state of great confusion. 



21. P. 



Ehrh. The White Beam Tree. 



Identification. Ehrh. Beitr., 4. p. 20. ; Dec. Prod., 2. p. 636. ; Don's Mill., 2. p. 647. 



Synonymes. Cratffi'gus A*r\& var. Lin. Sp. 681.; Mespilus A"r\& Scop. ; Sorbus .4 Via Crantz 

 Austr. 1. t. 2. f. 2., Bauh. Hist. 1. p. 65. ; ^Tria Theophrastt L'Obel ; white wild Pear, white 

 Leaf Tree, red Chess-Apple, Sea Ouler, Cumberland Hawthorn, Gerard; Alisier Allouchier, 

 Alisier blanc, Fr. ; Mehlbeerbaum, or Mehlbaum, Gcr. ; Aria, or Sorba montana, Ital. ; Mostaco, 

 Span. ; Axelbeer, Dan. ; Oxilbeer, Swed. 



Derivation. A*ria, the name given to this tree by Theophrastus, is probably from the name of that 

 country in Asia. The White Beam Tree is a pleonasm, beam being the Saxon word for tree. The 

 word Allouchier is from allonchion, the cog of a wheel, the wood of the tree being much used for 

 that purpose in France. Mehlbaum is literally the meal tree, from the mealy appearance of the 

 under side of the leaves. 



Engravings. Crantz Austr., 1. 1. 2. f. 2. ; Eng. Bot., t. 1858. ; Fl. Dan., t. 302. 



Spec. Char. t Sfc. Leaves ovate, doubly serrated, tomentose beneath, with ap- 

 pressed white tomentum. Corymbs flat. (Dec. Prod.) A deciduous tree- 



