34G Dr. Smith's Accouut of several Plants, .jc. 



13. Erigeron imiftorum, 



caiilibus subunifloris, calyce villoso, radio erecto subtubuloso. 

 E. uniflorum. Linn. Sp. PL 1211. Fl. Lapp. ed. 2. 250. t.g.f.S. 



Grows on Ben Lawcrs, and on rocks by the side of the river 

 Ahiiond, near Lindoch, seven miles from Perth. Mr. Don remarks 

 that the chief distinction between this and the alpinum, Engl. 

 Hot t. 464, is, that in uniflorum the florets of the radius are more 

 slender, and seem to be tubular, always upright, and never be- 

 coming patent as in alpinum. They are also of a deeper colour, 

 and the disk is constantly of a dark purple approaching to black, 

 instead of a light yellow. To this Ave may add, that the calyx 

 is always much more villose, forming, as Linna-us says, a hispid 

 globe before it opens. Tlie radius seems to be often white, and 

 hence he compares it to a daisy. Its erect position remains 

 \vhen dry, and a liberty appears to have been taken by the 

 draughtsman of the Flora Lapponica, who certainly saw only a 

 dried specimen, of making it spread almost horizontally. 



There can in future be no difliculty in distinguishing these two 

 species. Each of them is liable to bear several flowers on a stem 

 when cultivated. Both grow in Switzerland as well as in Scot- 

 land ; but we have seen only the imiflorum from Lapland, though 

 it appears by Fl. Danica, t. 292, that the alpinum is found on the 

 mountains of Norway and Iceland : and indeed Linnaeus in his 

 Lapland Tour describes his plant with a yellow disk, and sketches 

 the radius in a rather spreading posture ; so that, though he pre- 

 served the uniflorum only, he might possibly gather both, and at 

 that time confound them. 



Norwich, Nov. 6 — 30, 1 809. 



XV. Descriptions 



