. Les contributions du Laboratoire de Botanique, tome 9. La botanique, la botanique. Seipriz 361 William I. LA DISTRIBUTION ALTITUDINALE DE PLANTES SUR LES MONTAGNES DE CRIMÉE (avec plaques XIV-XVII et trois chiffres dans le texte.) Le succès de l'étude botanique de la Crimée ici présentée est due en grande partie à M. C. F. Vasiliev, sur qui reposait l'identification finale de toutes les plantes recueillies. M. Vassiliev, avec courtoisie typiquement russe, planifié et mené le voyage dans les montagnes. Ses comptes publiés.^ des Tatars de la flore ont été d'une grande aide dans la rédaction de cet article. Je suis également redevable à

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. Contributions from the Botanical Laboratory, vol. 9. Botany; Botany. 361 William Seipriz I. THE ALTITUDINAL DISTRIBUTION OF PLANTS ON THE CRIMEAN MOUNTAINS (With Plates XIV-XVII and three Figures in the Text.) The success of the botanical study of the Crimea here presented is largely due to Mr V. F. Vasiliev, upon whom rested the final identification of all plants collected. Mr Vasiliev, with typical Russian courtesy, planned and conducted the trip into the mountains. His published accounts^ of the Crimean flora have been of great help in the writing of this article. I am further indebted to Mr N. V. Kovaliev, Director of the Nikita Gardens, for officially assuming half of the responsibility of the trip. The flora. Plant geography is an old subject. The evident and superficial things have been done. To add anything of fundamental significance now requires years of intensive and extensive work which must be left to those residing in the country. The chance visitor can grasp only something of the outstanding botanical features of the region; his glimpses assume a more substantial nature, and become of some real value, only when he has the help of the taxonomic specialists of the country. The Crimea, or Krim, is a peninsula projecting into the Black Sea from the south coast of Kussia. A very narrow strip of land saves the Crimea from being an island which it more resembles. It is of irregular shape, considerably broader than long. The 45th parallel passes across the peninsula, dividing the Crimea into two geographically distinct regions, the southern mountainous coastal strip, 30 miles in width, and the broad northern steppe which con- stitutes more than two-thirds of the total area of the state. The capital, Simferopol, is a few miles south of latitude 45°. The Crimean Mountains attain their maximum height close to the coast (Fig. 1). Here they rise to an altitude of 1500 m. within 8 km. of the shore. At one point an altitude of 1200 m. is reached within 3 km. of t

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