( HAP. XLII. 



/{OS A CEJE. i'l'IR^E A. 





**. 



ii. p. 519. ; S. h. var. 0, Dec. Fl. />., v. 

 p. 645., P/wA-. /%/., t. 218. f. 5. 

 Leaves perfectly entire, glabrous. 

 Flowers in sessile corymbs. A native 

 of Canada. 



* S. h. 3 acuta Ser. S. acutiiolia M '///</. 



Enum., 540., Camb. Monog., and 

 DOIIK j\I'dl., ii. p. 519. ; S. sibfrica 

 Hort. Par., according to Camb. Mo- 

 nog. ; S. ambigua Pall., and our fig. 

 434. Leaves spathulate, elongate, 

 acute, perfectly entire, or, rarely, 3 5- 

 toothed, rather glabrous. Flowers 

 in sessile corymbs. 



* S. h. 4 crenata Ser. S. obovata Waldst. et Kit. 



541., Camb. Monog,, Barr. Icon. Rar., n. 



1376. t. 564. ; S. Aypericifolia y, Dec. Fl. 



Fr., v. p. 645.; S. crenata Lin. Sp., 701., 



Camb. Monog., and Don's Mill., ii. p. 519. 



and our^g. 435. Leaves obovate. 

 at S. h. 5 savranica Ser. S. savranica Besser in 



Litt., and Don's Mill., ii. p. 519. ; S. crenata 



Pall. Fl. Ross., i. p. 35. t. 19.; S. ^yperici- 



folia var. /3 longifolia Led. Fl. Ross. Alt. III., 



t. 429. ; and our fig. 436. All parts pubes- 

 cent. Leaves entire, or, at the tip, toothed. 



Flowers minute, disposed in dense terminal 



corymbs. It is wild about Barnaoul, and in Podolia. 

 & S. h. 6 Besseriana Ser. S. crenata Besser, in Litt. ; S. savranica /3 



Besseriarca Don's Mill., ii. p. 519., Lodd. Bot. 



Cab., 1. 1 252. All parts rather glabrous. Leaves 



mostly entire. Flowers disposed in rather lax 



terminal corymbs. A native of Podolia and 



Caucasus. 



Description, $c. S. Aypericifolia has small hard stems, 

 with numerous side branches, clothed with a dark green 

 bark, and with numerous wedge-shaped leaves, like those 

 of St. John's wort, with glands in their substance, which 

 give them the appearance of being punctured on the 

 surface ; whence the name. The flowers are white, in 

 small sessile umbels, resembling those of the common 

 hawthorn, but smaller ; and whence, probably, and from 

 its being common in Italy, and flowering very early in 

 the spring, the name which it once bore in the London 

 gardens, of Italian May. The flowers are produced in great abundance ; 

 and, when the shrub is allowed space to expand on every side, it forms a 

 very beautiful bush in the flowering season. In England, it was first cul- 

 tivated by Parkinson in 1640 ; and that author and Miller say that it 

 came originally from North America : but Sir James Edward Smith thinks 

 it more likely to be a native of Italy, as he found the hedges full of it 

 between Terni and Foligno. Dr. Hooker, alsOj thinks it most likely to be a 

 European species; though Pursh appears to have found it in a living state in 

 dry swamps in Canada and New York. It forms handsome garden hedges, 

 and will bear the shears, which were formerly applied to it, to shape it into 

 artificial forms, when topiary work was fashionable in garden scenery. It is 

 readily propagated by layers, or by detaching its suckers. 



13. S. (H.) THALiCTRoYDEs Pall. The Meadow-Rue-/evcrf Spiraea. 



LlcHtification. Pall. Fl. Ross., 1. p. 34., and p. 78. ; Dec. Prod,, 2. p. 543. ; Don's Mill., 2. p. 518. 



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