Ny 
22. 
THE LIFE AND WORK OF GEORGE DON. 
Hypnum crista-castrensis, Eng. Bot., ¢. 2708 ! 
I discovered this beautiful species aban twenty-five years 
ago in fir woods near Forfar. It was not known for several 
years after to be a native of Britain. It was not until Septem- 
ber 1812 that I found it with capsules in a wood opposite 
Mar Lodge, by the side of the river Dee, in Aberdeenshire. 
. Hypnum schreberi, Eng. Boi. ¢. 7621! Schreberian Feather- 
Moss. 
On the Pentland hills, and in a wood opposite Mar Lodge. 
My specimens from fir woods near Forfar. 
Hypnum purum, £xg. Bot, ¢. 1599 5 Curt., F7. Lond., fasc. 3, 
- 65 Dil, Hist. Musc., t. 40, I 45! 
Neat Meadow Feather-Moss. 
Not unfrequent. My specimens from fir woods near Forfar: 
| Brachythectum purum, Dixon.—G. C. D.]} 
. Lichen nivalis, Linn., Zug. Bot. ¢. r99¢. 
Cetraria poe Ach, Meth., p. 294; Fl. Dan, t. 227; Dill, 
Hist. Musc., t az, f. 
On the summit of the ea highest mountains—as on the 
Cairn = Ben Macdowie, Cairn Digna rene Ben-na-Board, 
a er 
Clova mountains. I have never seen it on Ben Lawers nor on 
any mountains of the West Highlands. 
