a very natural genus. If the genus Crataegus be retained, 

 our plant should certainly rank under it, but as the nearly 

 allied species Mespilus tanacetifolia is arranged under 

 Mespilus in the Hortus Kewensis, an unwillingness for 

 changing backwards and forwards restrains us, for the 

 present, from making any alteration. 



From having compared our plant with Pallas's specimen 

 of Crataegus orientalis preserved in the Lambertian Herba- 

 rium, we have no doubt of their being of the same species, 

 though the Taurian plant has a much longer and thicker 

 pubescence; but Marschall v. Bieberstein's character 

 does not altogether accord with it, and leaves some doubt 

 whether he has not described the tanacetifolia; which is 

 distinguished from our plant, besides the difference of their 

 fruit, by the segments of the leaves being minutely serrate, 

 which in odoratissima are only cut into a few larger quite 

 entire teeth. 



A hardy tree. Flowers in June. Native of Southern 

 Tauria on the borders of the Euxine sea. Communicated 

 by John Walker, Esq. of Arno's grove. 



