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(which is also found, though dwarfish, on the hills,) Epilobium 

 luteum, and Mimulus guttatus (Willd.*), Claytonia unalasch- 

 kensis (Fisch.), and sibirica {alsinoides? Pursh), may be also 

 reckoned here. Sanguisorba canadensis, Lithospermum an- 

 gustifolium, &c. belong to the common Flora of America. 



Many species of Grasses thrive in the low lands, with some 

 Umbellatce, such as Angelica, Heracleum, &c. A dozen Carices, 

 scarcely forming a larger proportion of the vegetation than 

 in the north of Germany ; some Scirpi and Eriophora accom- 

 pany them, with a few Junci, in the proportion of about one to 

 two. The OrchidecB constitute a groupe of some importance, 

 both because of the number of species and the beauty of the 

 individuals ; they prevail both in the vallies and on the hills • 

 and we counted eleven kinds : among them a beautiful Cypri- 

 pediiim. Higher north, we did not observe a single plant of this 

 family. Of the Ferns we found about eight species ; nearer to 

 the Pole there is but one Filix, and even of this we only saw 

 a solitary specimen. At Unalaschka there are some Lycopo- 

 dia; in the more arctic regions but one. We found in the 

 lakes many watei'-plants ; Potamogeton, Sparganium, Ranun- 

 culus aquatilis, &c. ; in the higher latitudes we observed only 

 the two species of Hippuris, and the common Callitriche. 



Two other Ranuncula, the Prunella vulgaris, a species of 

 Rhinanthus, of Cineraria, Achillea, Plantago, and Geum, some 

 RubiacecB, a Claytonia, the Menyanthes trifoliata, a Triglochin, 

 &c. belong, with the other above-mentioned plants, to the 

 Flora of the vallies of Unalaschka. We saw also a Bartsia, 

 ajiparently different from the Bartsia pallida of more nor- 

 therly situations. To a beautiful plant, which constitutes a new 

 and distinct genus, we gave the appellation of Romanzoffia 

 unalaschkensis, in commemoration of the noble promoter of all 

 science in Russia. The genera Rumex, Polygonum, Aconi- 

 tum, Thalictrum, some Alsinece, the Iris sibirica, Geranium 

 pratense, Comarum pratense, and Montia fontana are distri- 

 buted all over these arctic regions. 



* The seed of this species, which ^\as raised in the Botanic Garden of Berlin, 

 is said to be brought from Baikal. 



Y 2 



