Mr. R. Spruce on the Miisci and Hepatiae of the Pyrenees. 101 



Veronica aphyllaj Bartsia alpina, Pedicularis comosa^ Horminum 

 Pyrenaicum, Pinguicula grandiflora^ Androsace carnea et villosa, 

 Primula integrifolia, Globularia nudicaulis et rupestris, Statice 

 alpina, Salix Pyreuaica et reticulata, Luzula pediformis, Carex 

 sempervirens, Festuca varia, Aspidium Lonchitis, Lycopodium 

 Selago, Polypodium Phegopteris. 



Zona medialpina (= Z^). Ranunculus alpestris, montanus, 

 Pyrenajus, Cardamine bellidifolia, Draba aizoides, Sisymbrium 

 pinnatifidum, Saponaria csespitosa, Arenaria purpurascens, Stel- 

 laria cerastoides, Cerastium alpinum, Cherleria sedoides, Geum 

 montanum, Poteutilla nivalis, Rhodiola rosea, Saxifraga aretioides^ 

 bryoides et muscoides, Asperula liirta, Aronicum scorpioides. 

 Chrysanthemum alpinum, Erigeron alpinus, Gnaphalium leon- 

 topodium et supinum, Senecio Tournefortii, Crepis pygmsea. 

 Taraxacum officinale var. alpinum, Campanula pusilla, Jasione 

 perennis, Phyteuma hemisphsericum, Euphrasia minima, Pedicu- 

 laris Pyrenaica et rostrata, Pinguicula alpina, Soldanella alpina, 

 Daphne Cneorum, Veronica alpina, Juniperus nana, J uncus tri- 

 fidus, Luzula spadicea et pediformis, Carex Pyreuaica, Festuca 

 varia. 



Zona superalpina (= Z^). Cardamine bellidifolia, Draba niva- 

 lis, Potentilla nivalis et Salisburgensis, Saxifraga bryoides, gra- 

 nulata var., muscoides et groenlandica. Lap., Senecio Tournefortii, 

 Gentiana alpina, Myosotis sylvatica var. alpestris, Pedicularis 

 rostrata, Soldanella alpina, Statice alpina, Salix retusa et her- 

 bacea, Luzula spicata, Carex curvula et nigra, Agrostis vulgaris 

 var. alpina, Sesleria disticha. 



Throughout the following catalogue of the mosses, the zones 

 which each species occupies will be distinctly specified; and to 

 enable me to do this in the smallest possible compass, I propose 

 the notation of zones above indicated, that is to say, Zj for the 

 first zone above the plain, Z2 for the second, &c,, and Zq for the 

 plain itself. It is in many cases difficult to ascertain the zone in 

 which a moss has normally its station, for in mountainous coun- 

 tries the seeds, &c. of mosses are carried down by the streams, 

 precisely as those of flowering-plants are ; but a large proportion 

 of mosses are found only near streams, and that especially in a 

 low latitude, where the requisite degree of moisture is more rarely 

 met with. Hence certain mosses, natives of the alpine region, 

 are occasionally found some thousands of feet below it. To take 

 an instance in Grimmia spiralis, a species which is stated by the 

 authors of the ' Bryologia Europsea' to have its " veritable habitat 

 au-dessus de toute vegetation forestiere." Near Cauterets, op- 

 posite the baths of La Raillere, on the rude blocks of granite 

 which are thickly strewn along the banks of the Gave de Marca- 

 daou, this species forms large lax tufts, disfigured by the sand of 



