Ascent of the Jungfrau in 1841. 327 
five species,* which are in part the same as those which Saus- 
sure collected on the summit of Mont Blane and the Géant, 
and one new species, to which he has given the name of Umbi- 
licaria Virginis, in commemoration of our ascent. 
We could not expect to find living beings at such a height ; 
it seemed that even the Podurella of the glaciers (Desoria 
glacialis, Nic.) did not ascend thus far, for we did not meet 
with one. To make up for this, however, we perceived 
* These five species are :— 
1. Lecidea conglomerata, Ach. Scher. Spicil. p. 121. Ejusd. Lich. Hely. 
exs., No. 169. 
2. Lecidea conjluens (var. sterisa), the same which Saussure found on Mont 
Blane and the Col du Géant. 
3. Parmelia elegans « miniata, Scheer. Spicil. p. 428, Ejusd. Lich. exs., 
No. 338 ; likewise found on the Col du Géant. 
4, Umbilicaria atro-pruinosa y reticulata, Scher. in Ser. Mus, Hely. d’ His- 
toire Naturelle, I. p. 109, pl. 14, fig. 5-9; also found by Saussure on 
the Col du Géant. 
5. Umbilicaria Virginis, Schaer. Mscr. 1841. 
The following is M. Scherer’s description of this species, from specimens 
communicated to him by M. Agassiz :— 
Diagn. U. glauca, subtus ochroleuca, hirsuta ; apotheciis superficialibus, 
disco equabili, margine tenui prominente. 
Descript. Thallus coriaceus umbilicatus, juyenilis monophyllus, orbicu- 
laris, ambitu integriusculo ; adultior plures emittit lobos, ambitusque ejus 
crenatus fit et lobatus. Diameter in speciminibus quae coram habeo, a 
paucis lineis ad bipollicarem usque extenditur. Pagina adversa in juniori 
lichene «xquabilis est, in adultiori rugosa et undata fere ut in Umb. pustu- 
lata ; color ejus in statu humecto glaucus, in sicco murinus yel obscurior 
tenuissimoque pulyere albo obductus, unde adhibita lente tenuissime exas- 
peratus apparet. Pagina aversa ochroleuca est, ad ambitum fusca, vel pilis 
yalidis simplicibus ramosisque concoloribus praeter umbilicum dense ves- 
tita, vel bulbilliscorum exasperata. 
Hactenus cum Umb. hirsuta, Hoffm. ad assem fere convenit. Aliter vero 
Apothecia se habent; non enim ut ibi juniora in thallum deprimuntur, sed 
jam ab initio superficialia occurrunt et in unico specimine adultiore, cujus 
facies adversa rugosa est, et undata hisce asperitatibus coarctata sunt, in- 
deque thallo immersa videntur. Gyris etiam concentricis omnino carent 
discumque praebent per omnem aetatem aequabilem marginique cinguntur, 
non, ut ibi, crasso, sed tenui, in junioribus integro, in adultioribus vero flex- 
uosa. Practerea pleraque specimina apotheciis abortivis verrucaeformibus 
apiceque impressis horrent. Apotheciorum denique color ater absque splen- 
dore. Quoad thallum hic lichen ad Umbilicarias, quoad apothecia yero ad 
Lecideas pertinet. (SCHAERER.) 
