ADDITIONS TO THE BRITISH LICHEN-FLORA. 177 



The luiiiinous fungus referred to iu the March number of ' Science Gossip,' 

 seems to be tlie same with Ayarlcm Gardneri, Berk., an interesting 

 account of which was laid before the Linnean Society in 1869, in a letter 

 from Mr. Collingwood. The writer stated that this species in Borneo 

 could be distinctly seen in the dark, shining with a soft pale greenish 

 light ; the older specimens were described as possessing a greenish lumi- 

 nous glow, like the glow of the electric discharge. The mycelium of this 

 species, like the mycelium of Tolyporus minosus, Fr., mentioned above, 

 was luminous. It was stated that Mr. Hugh Low had once seen the 

 jungle all in a blaze of light, liy which he could see to read as he was 

 riding across the island by jungle road. Several other species are men- 

 tioned as phosphorescent in Berkeley's ' Introduction to Cryptogamic 

 Botany,' p. 265. I have several times observed flowers to be luminous, 

 especially during certain atmospheric conditions in midsummer ; such in- 

 stances as the luminosity of stale fish, potatoes, etc., are of course known 

 to every one. A year or two ago, when returning home through Epping 

 Forest at night, after a long day's excursion, I saw a very luminous 

 object on the ground in the distance ; on nearing it I found it to be a 

 dead rat, which I brought home in my vasculum, and laid on the garden 

 bed, where it preserved its luminosity for several nights. — Wouthington 

 G. Smith in ^Science Gossip.' 



V, 



eports* 



ADDITIONS TO THE BRITISH LICHEN-FLORA. 



By the IIev. James M. Crombie, M.A., F.L.S. 



No. II. 



In addition to those formerly recorded in Vol. VIII. p. 95 of this 

 Journal, as supplementary to my Lich. Brit. Enum., there now fall to be 

 enumerated the following species, which chiefly since that time have been 

 gathered and determined. Several are again new species, the majority of 

 which were collected by myself last autumn, during a short excursion to 

 the Blair Athole district, in the central Highlands of Scotland. This 

 tract hitherto, as it would appear, quite unexplored by any lichenologist, 

 yielded a very goodly number alike of rarities and of novelties, the ma- 

 jority of the latter being still undetermined. 



Pyrenopsis fuscaiida, Nyl. Enum. 144. On rocks in maritime tracts. 

 Rare in the Channel Islands, where it has been gathered sparingly, at 

 Noirmont and Le Moge, Jersey (Larbalestier). 



Calicium retiuens, Nyl. in Flora, 1868, p. 161. On the bark of Oak 

 in maritime tracts. Apparently rare in the Channel Islands, and gathered 

 only very sparingly in Jersey (Larbalestier), although, from the small size 

 of the apothecia, it may have been overlooked elsewhere. 



Alectoriu cupiUaris, Ach. L. U. 593. Not uncommon with var. cqna, 

 Ach., on old Pines in the Highlands of Scotland, at least in Braemar, but 

 always baiTen. From A. jubata it is distinguished by the greyish colour 

 of the thallus, aiul by the reaction K+ ; the former with its vnrs,. prolixa, 

 Ach., and cliahjbeij'ormis, Lin., having olive-brown thallus and reaction 

 K = , according to Dr. Nylander, 



VOL. IX. [JUNE 1, 1871.] N 



