APPENDIX D.—PRIVATE HERBARIUM. 183 
APPENDIX D. 
GEORGE DON’S PRIVATE HERBARIUM. 
(DATE, 1809-1813.) 
This is contained in a large folio volume which was purchased 
by Mr. Blackadder, land surveyor, Glamis, at the sale of George 
Don’s effects in the spring of 1814. After his death it came into 
the possession of his nephew, Robert Blackadder, civil engineer, 
Dundee, from whom John Knox purchased it in April 1881. 
It contains a number of grasses, sedges, and rushes, often, 
however, without precise localities. In some cases the name of 
the plant and even the locality is put in without the specimen te 
represent it, so that the value attaching to the localities of the 
species represented is somewhat diminished, and may be the source 
of error, as we see is the case with another botanist—Dickson—who 
followed the same plan. 
In the following list only those plants which are localised, and 
which are not represented in the Herbarium Britannicum which 
Don issued, will be given unless they possess some peculiarity 
worth notice. 
Scheenus rufus var. 
Salt marshes. 
[This is the Sate with a long bract, so that the fn space soe 
oe axillary and not terminal, to which the cd ep 
Schrad., fetes bifolius (Wahl. ), is given in “oor. ists.— 
C.D] 
Scirpus glaucus. 
Near Montrose, but rare. 
[This is Scirpus Tabernemontani, Gmel.—G. C. D.] 
