1810 
* CRAT/ÉGUS Douglásii. 
The Douglas Thorn. 
ICOSANDRIA MONO-PENTAGYNIA. 
Nat. ord. Rosacex, $ Pomex. (Introduction to the Natural System 
of Botany, p. 83.) 
CRATEGUS.—Supra, vol. 83. fol. 1128. 
C. Douglasii; foliis obovatis ovalibusque inciso-serratis acutis basi cuneatis gla- 
bris demum subcoriaceis sublucidis, laciniis calycis ovatis glanduloso-serratis 
pedunculisque glabris, spinis rigidis rectiusculis. 
C. punctata. (3, brevispina. Douglas in Hook. Fl. Bor. Am. 1.201. 
Rami ascendentes, cinereo-purpurei, glabri, spinis rigidis levigatis, 
nunc brevibus nunc longissimis. Folia semper glabra, petiolis omnind eglan- 
dulosis, inciso-serrata nullo modo angulata vel plicata, sub fine anni coria- 
cea et sublucida, citó tamen decidua, paulo post C. glandulosam et punctatam. 
Inflorescentia cymosa glabra, floribus magnitudine mediocri subtetragynis. 
Sepala ovata glanduloso-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 the 
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 havean evident 
tendency to be furrowed asif plaited ; its branches are 
* See folio 1161. 
