OBSERVATIONS ON HÖLL’S LIST. 43 
occur on the mountains in some parts of the Island; but with 
this, I am pretty certain, Mr. Höll was unacquainted; and 
the plant designed by him here is, no doubt, E. moschatum, L. ; 
which is most abundant in roads, &c. about Funchal and else- 
where. ; 
* Cerastium arvense, Linn." I very strongly suspect that 
by this is intended a species, C. rupestre, nob. MSS., of which 
I shall soon publish the characters in the Camb. Trans.; con- 
sidering it as probably new. It is allied, indeed, but quite 
distinct fron C. arvense, L., which I have never met with 
here. : 
* Hypericum undulatum, Schousb.” Mr. Hoóll's list of Hy- 
perica, bearing a perfect conformity with mine in every other 
respect, I am inclined to conjecture that he may mean by the 
above name what I have inadvertently called H. angustifolium 
in the Camb. Trans.; not having observed at the time that 
the name had been previously applied by Lamarck to a very 
different species. I propose, therefore, to call my Madera 
species H. nubigenum. For even supposing its identity with 
Mr. Héll’s * H. undulatum, Schousb.,” established, which it is 
not, I should be very doubtful still whether it were really 
Schousboe's true plant. 
My notes have run on insensibly to a much greater length 
than I had anticipated. But the fault may not be altogether 
useless, if it serves for an expression to Mr. Holl of the value 
I attach in general to his publication, and of my obligations to 
yourself, my dear Sir, for the knowledge of it. 
I remain ever, 
Yours, most faithfully, 
R. T. Lowe. 
Mapzna, May 24th, 1832. 
