HERBARIUM – MYCOLOGY – Manuscript herbarium of lichens and lichenicolous fungi containing approximately 500 different specimens collected in the Pyrenees region, [circa 1850-1870].
Thick folio volume, 114 [ie. 115] leaves of lichen specimens ; contemporary cartonnage, manuscript title to spine, remains of ties.
A very rare herbarium of lichens and lichenicolous fungi collected in the Pyrenees region or mountains circa 1850-1870.
The botanist, who remains anonymous, dated some of the specimens : 58 (leaf 38),5 January 63 (leaf 60), January 53 (leaf 83), 23 September 56 (leaf 86), 29 February 59 (leaf 103) and also added some locations : massif du Tourmalet (leaves 8 and 80), Gerde (leaf 23), vallon de Courbette (leaf 28), montagne du Hount Blanque (leaf 33), la Gailleste (leaf 71), coteaux de Gerde (leaf 73), or le Pas du Bouque [sic Bouc] (leaf 97).
The author sorted the lichens according to their botanical genuses (see details below) and for each of them, indicated the scientific name by referring to the great lichenologists of the end of the 18th century and the beginning of the 19th century : Georg Franz Hoffmann, Erik Acharius, Ludwig Emanuel Schaerer, to name but the recurring ones. In addition, the author also specified the places where the lichens grew : plain, mountain, valley, rock, bark, old trees, etc.
Lichens are heterotrophic fungi which colonise, grow and invade other living organisms or inorganic materials. It is highly difficult or even impossible to separate them for their hosts in order to classify and present them, so this lichen herbarium is a completely original object that shows not only the lichens but also the stones, bark and mosses on which they grew.
A rare and particularly uncommon type of herbarium of great generic diversity, in very good condition (only a few specimens are missing).
The classification is as follows :
-Endocarpon : leaves 1-3 containing approx. 13 specimens ;
-Umbilicaria : leaves 4-8 containing approx. 19 specimens ;
-Peltigera : leaves 9-12 containing approx. 12 specimens ;
-Sticta : leaves 13-15 containing approx. 9 specimens ;
-Parmelia : leaves 16-26 containing approx. 46 specimens ;
-Collema : leaves 27-29 [including two numbered 28] containing 11 specimens ;
-Evernia : leaf 30 containing 4 specimens ;
-Borrera : leaf 31 containing 2 specimens ;
-Cetraria : leaves 32 and 33 containing 10 specimens ;
-Ramalina : leaves 34-37 [no leaf 36] containing 10 specimens ;
-Usnea : leaf 38 containing 4 specimens ;
-Cornicularia : leaves 39 and 40 containing 9 specimens ;
-Sphaerophorus : leaf 41 containing 2 specimens ;
-Stereocaulon : leaf  containing 5 specimens ;
-Cladonia : leaves 43-58 containing approx. 56 specimens ;
-Isidium : leaf 59 containing 1 specimen ;
-? : leaf 60 containing 3 specimens ;
-Calycinum : leaf 61 containing approx. 7 specimens ;
-Opegrapha : leaves 62-67 containing approx. 30 specimens ;
-Verrucaria : leaves 68-71 containing approx. 26 specimens ;
-Lecidea : leaves 72-84 containing approx. 77 specimens ;
-Rhizocarpon : leaves 85-86 containing 13 specimens ;
-Psora : leaves 87-89 containing approx. 14 specimens ;
-Squamaria : leaves 90-92 containing 11 specimens ;
-Placodium : leaves 93-95 containing 15 specimens ;
-Lecanora : leaves 95-102 containing approx. 44 specimens ;
-Gyalecta : leaf 103 containing 4 specimens ;
-Urcealaria : leaves 104-106 containing approx. 10 specimens ;
-Pertusaria : leaves 107-108 containing 6 specimens ;
-Thelotrema : leaf 109 containing 1 specimen ;
-Nariolaria : leaves 110-111 containing 5 specimens ;
-Coniscarpon : leaf 112 containing 1 specimen ;
-Spiloma : leaf 113 containing 1 specimen ;
-Lepra : leaf 114 containing 5 specimens.
In total approx. 486 different collected specimens.
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