PROF. MARTINS : VEGETATION OF SPITZBERGEN. 



205 



hellidifolia, L. ; Silene acaulis, L. ; Cerastium latifolium, * L. ; 

 Clierleria sedoides, L. ; Potentilla alpestris, Hall. 

 Saxifraga aizoides ; S. bryoides ; S, biflora, All. ; S. exarata, Yill. ; S. mns- 

 coides ; S. oppositifolia ; S. retusa, Gouan ; S. stellaris, L. ; Achillsea 

 hybrida, Gaud. ; Artemisia mutellina, Yill. ; A. spicata, Wulf. ; Aster 

 alpinus ; Clirysantbeinuin alpiniim. Erigeron unijlorus ; Pbyteuma 

 pauciflorum L. ; Myosotis nana ; Linaria alpina ; Veronica alpina ; 

 Gentiana verna ; G. imbricata, Froebl. ; Androsace glacialis, Hoppe ; 

 Primula Dyniana, Lgasca. j Oxyria digijna) Salix lierbacea ; B. reticu- 

 lata. 



Agrostris rupestris,'"' All. ; Trisetum siibsplcatum, P. Beauv. ; Pestuca Halleri, 

 All. ; P. ovina ; Poa alpina ; P. laxa, Haencke ; P. minor, Gaud. ; 

 Koehleria liirsuta, Gaud. ; Elyna spicata, Sclirad. j Luzula spicata, * 

 JD.C. j Carex nigra. All. 



The proportion of Spitzbergen plants is tlius a fifth, tbe same as at the 

 Grands Mulets, and Cerastium alpinum, Salix herhacea, L/iizula spicata, and 

 Agfostis spicata, are the sole Lapland plants strangers to Spitzbergen. The 

 remaining thirty-three species are exclusively alpine. 



Gn the highest point of the pass of St. Theodule, which leads from 

 the Valley of Zermatt, in the Valais, to the Val Tournanche in Piedmont, is 

 also found an islet uncovered by snow, but closely surrounded on all sides 

 by immense glaciers. It was here that De Saussure spent sometime in 1789. 



This point is situated at 3,350 metres (10,866 feet,) above the level of 

 the sea. I visited the place with M.M. 0. Sella and B. Gastaldi, on the 17th 

 September, 1852, and gathered on the serpentine schists the following 

 plants, the nomenclature of which has been kindly verified by M. Eeuter. 



PHANEROGAMIA OF THE HIGHEST POINT OF THE PASS OF SAINT THEODULE. 



Ranunculus glacialis, L. Thlaspi rotundifolium, Gaud, j Draba pyrenaica, L, j 

 D. tomentosa, Wahl. ; Geum reptans, L. ; Saxifraga planifolia. Lap. ; 

 S. muscoides, Wulf ; S. oppositifolia, L. ; Pyrethrum alpinum Wild. ; 

 Erigeron unijlorus, L. ; Artemisia spicata, L, ; Androsace pennina, 

 Gaud. ; Poa laxa, Haencke. 



This list is far from being complete, still out of thirteen species there are 

 three (in italics) which are found in Spitzbergen. I should be much pleased 

 if any young botanist, Swiss or Italian, would undertake the task of com- 

 pleting the flora of this interesting locality. This may be the more easily 

 accomplished now, since there has been for the last ten years a small Hotel 



