1810 



*CRAT/EGIJS Douglasii, 



TJie Douglas Thorn. 



ICOSANDRIA MQ-NO-VE^TAGY'NJA. 



Nat. ord. RosACE/E, § Pomete. {Introduction to the Natural Sijstem 

 of Botany^ p. 83.) 



CRATjEGUS.—Supra, vol. S3, fol. 1128. 



C Douglasii; foliis obovatis ovalibusque inciso-serratis acutis basi ciineatis gla- 

 bris demum subcoriaceis siiblucidis, laciniis calycis ovatis glanduloso-scrratis 

 peduncnllsque glabris, spinis rigidis rectiusculis. 



C. punctata. /3. brevispina. Douglas in Hook. FL Bor. Am. 1. 201. 



Rami ascendentes, cinereo-purpurei, glabri, spinis rigidis IcEvigatis, 



nunc brevibus nunc longissimis. FoWa semper glabra, petiolis omnino eglan- 



dulosiSy inciso-serrafa nullo modo angulata vel plicata, sub Jine anni coria- 



cea et sublucida, cito tamen decidua, pauVo post C. glandulosam et punctatani. 



Inflorescentia cymosa glabra, floribus magnitudine mediocri subtctragynis. 



Sepala ovata glandulow-serrata. Fructus parvus, atropurpureus. 



A native of North West America, where it was collected 

 by Mr. Douglas. A hardy tree of small size flowering in 

 May. 



We believe this to be essentially different from all the 

 published species of this genus, but the whole of tlie 

 synonymy is in so deplorable a state of confusion, from want 

 of some monographer, who at the same time is well ac- 

 quainted with the living trees, and has access to authentic 

 sources of information, that we are by no means certain that 

 it has not already appeared in print as a species. 



Mr. Douglas considered it a variety of C. punctata, but 

 the leaves of that species are far thinner, and have an evident 

 tendency to be furrowed as if plaited ; its branches are 



* See folio 1161. 



