The Scott is Ji Naturalist. 89 



rare B. flavidiis, not to mention its myriad Agarics. Instead 

 of this mycological paradise we have a large extent of birch- 

 wood, not indeed altogether barren, but still not very productive ; 

 and though there are plenty of coniferous plantations in the 

 lower part of the glen — for the most part remaining unexplored 

 — they cannot be expected to be very rich. 



Notwithstanding these drawbacks, I think the list which I 

 give below will show that Glen Tilt is by no means destitute of 

 both rare and interesting species ; and that when its mycology 

 has been more fully investigated, the catalogue of its species will 

 not be a short one. 



Up to the present moment very little has been done to reveal 

 the riches of the glen. In studying its entomology and its 

 flowering plants, I of course did not altogether neglect to notice 

 the fungi, but they only occupied a very small portion of my 

 attention. In fact, a single day only has been properly devoted 

 to the mycology of Glen Tilt ; and though on that occasion I 

 had the great advantage of Mr Stevenson's companionship, and 

 though the day was a good long one — we worked straight on 

 from 5 A.M. to 5 P.M. — we can scarcely be said to have got 

 further than the title-page of the catalogue of the fungi. 



In noticing the species observed in the Glen, I shall begin 

 with those that attain the higher altitudes, and thence gradually 

 descend to the lower part of the district. 



The only Agaric that is at all widely distributed on the hills 

 is Agaricus tunbelliferus., which ascends above 3000 feet, and is 

 very variable in colour. Of a more truly alpine character is 

 Peziza axillajis, which occurs at about 3000 feet on Ben Ghlo, 

 the only place in the district where I have noticed it. In Ran- 

 noch it descends to 900 feet. 



Between 3000 and 2000 feet a number of species occur, some 

 common, others more or less local. Amongst these I have 

 noticed in Glen Tilt, chiefly on the hill to the north-west of 

 Forest Lodge, Agaricus semiglobatus, Ag. tener, Ag. dryop/iiiiis, 

 Ag. gracillinius (amongst Vaccinium inyrtillus and V, uligino- 

 sum), Russttla enictica, Coprinus 7'adiatus, C. inveus, Marasmius 

 andivsaceus^ Fhragjiiidium obtusum., Puccinia compositanun., P. 

 variabilis, ^cidium compositariim, Uredo vacciiiioi'iim (on Vacci- 

 niui7i uliginostmi), and Piloboliis crystalliims. At about the same 

 altitude on Ben Chat a Puccinia, which seems to be pulvertilenta, 

 grows on Epilobinm alpiniim, var. anagallidifolium ; and Lecythea 

 saliccti, or an allied species, upon Salix hcrbacea. Rhytisma 



