Floristik und Systematik der Phanerogamen. 717 



Eine Uebersicht über die geographische Verbreitung der Arten 

 schliesst sich an. Der Eintheilung von Pax folgend werden die bekannten 

 16 Arten der Gattung in einem Bestimmungsschlüssel geordnet; Tacca 

 macrantha W. Limpr. n. sp. (vielleicht = T. Chantneri Ed. Andre) sowie 

 T. pinnatiflda subspec. eupinnatifida'W. Limpr., subspec. minor W. Limpr., 

 subspec. interrupta W. Limpr. werden neu beschrieben. Carl Mez. 



üstenfeld, C. H. , Flora Arctica. Containing Des- 

 criptions of the Flowering Plants and Ferns 

 found in the Arctic Regions with their Distribu- 

 tion in these Countries, illustrated by numerous 

 figuresinthetext. Parti. Pteridophyta, Gymnospermae 

 and Monocotyledones by 0. G eiert and C. H. Ostenfeld. 

 Copenhagen. Det nordiske Forlag. 1902. gr. 8°. Priee 5 sh. 

 The basis of this revision of all the higher plants recorded 

 from Arctic countries are the rieh collections of the Botanical 

 Museum at Copenhagen, besides that material from the museums 

 of St. Petersburg, Stockholm, Lund, Christiania and Berlin has 

 been consulted. The work was begun by 0. G eiert who in 

 1898 published a revision of the Arctic species of Draba and 

 some other Cruciferae as a preliminary study („Notes on Arctic 

 Plants." Botanisk Tidsskrift. XXI. 1898). Unfortunately this 

 able systematist died shortly afterwards, leaving however re- 

 visions of several of the first Orders in M. S. viz. the Pteri- 

 dophyta, Gymnospermae, Juncaceae and Gramineae. During the 

 following years, iMr. Ostenfeld worked up the rest and looked 

 over the revisions of his late cooperator, especially in regard to 

 recent publications. 



The limits of the treated territory neariy eoineide with the 

 wood-boundary, Iceland and the Scandinavian Peninsula are never- 

 theless entirely left out and, on the other hand, the whole of 

 Greenland ist taken in Keys to Orders, genera and species are 

 given, each species is described, its known distribution is stated, 

 and the Synonyms of all papers dealing with Arctic botany are 

 communicated. The leading principle in treating the single 

 species has been that of condensation. This becomes evident 

 by a glance at the larger orders such as Juncaceae, Cyperaceae 

 and Gramineae. A great many species are illustrated by original 

 figures of habit with analyses, drawn after Arctic speeimens,. 

 e. g. all species of the genus Carex are thus illustrated. 



The work will be most useful and welcome to each bota- 

 nist dealing with Arctic plants. Porsild. 



Pax, F., Ueber die Beziehungen der europäischen 

 zur nordamerikanischen Flora. (79. Jahresbericht 

 der Schlesischen Gesellschaft für Vaterländische Cultur. 1901. 

 II. Abth. Section für Obst- und Gartenbau, p. b.) 



Nicht vom Vortragenden selbst veriasstes Ref. über populären 

 Charakter tragende Ausführungen über das angeführte Thema. 



Carl Mez. 



