ICOSANDRIA— PENTAGYNIA. Spircea. 367 



Crataegus Aria. Linn. Sp. PI. 681. Huds. 214. Fl. Dan. (.302. 

 Ehrh. PI. Off. 375. 



Mespilus n. 1089. Hall. Hist. r. 2. 31 . 



M. alni folio subtus incano, Aria Theophrasti dicta. Raii Syn. 453. 



Sorbus Aria. Cratiiz Stirp.fasc. 2. 46. I. 2./. 2. 



S. alpina. Bank. Hist. v. 1. 65./. 



Aria. Dalech. Hist. 202. f. 



A. Theophrasti. Ger. Em. 1327. f. 



(3. Pyrus intermedia. Ehrh. Beilr. v. A. 20. Arh. 94. JFilld. Sp. 

 Pl.v.2. 1021. 



P. hybrida. Fl. Br. 534. 



Crataegus Aria (5. Linn. Sp. PI. 681, 



Sorbus hybrida. Huds. 216. mth. 461. 



In mountainous woods on a chalky soil, and the fissures of lime- 

 stone rocks, 



/3. On the walls of Castle Dinas y Bran, Denbighshire. Dr. Pra- 

 tinton. 



Tree. May. 



A tree of a moderate size, whose young branches are very white 

 and downy ; the old bark reddish brown, and smooth ; the wood 

 very hard. Leaves on downy stalks, elliptic-oblong, doubly ser- 

 rated ; sometimes with several marginal lobes, which is the cha- 

 racter of /3, but not pinnatifid at the lower part as in the i)re- 

 ceding ; the upper surface smooth, of a fine green ; the under 

 snow-white, and downy, marked with several straight, promi- 

 nent, transverse ribs, having correspondent furrows above. Sli- 

 pulas a slight, membranous, smooth dilatation, at each side of 

 the bottom of the footstalks, generally elongated into lanceolate 

 appendages, or real stipulas, which soon fall off. Fl. white, in 

 large corymbose compound tufts, with downy stalks. Bracteas 

 linear, smooth, deciduous. Styles 2, often 3 or 4. F^uit with 

 as many coriaceous cells, globular, scarlet, dotted, mealy, acid 

 and astringent. Seeds 2 in each cell. 



Ehrhart's authentic specimen of j3 accords with my Welsh ones, 

 differing from the common Jria in having rather deeper margi- 

 nal notches, or lobes ; but the leaves are not truly pinnatifid. 

 Willdenow declares it to differ in its whole habit from P. Aria, 

 which I can find nothing to confirm. There can scarcely be 

 found a tree of the Aria on which some leaves do not answer to 

 this variety. 



253. SPIRiEA. Spiraea, Dropwort and Mea- 

 dow-sweet. 



Linn. Gen. 253. Juss. 339. Fl. Br. 535. Tourn. t. 389. Lam. 



t. 439. Gcvrtn. t. 69. 

 Filipendula. Tourn. t. 150. 

 Ulmaria. Tourn. t. 141. 



