No. 458.] NOTES AND LITERATURE. 105 
A number of new species of cacti are described from the notes of 
the late Dr. Weber, by Gosselin, in No. 6 of the Bulletin of the 
Museum d’Histoire Naturelle of Paris for 1904. 
An attractive book, “ Abbildungen der in Deutschland und den 
angrenzenden Gebieten vorkommenden Grundformen der Orchideen- 
Arten,” by Müller, with descriptive text by Kränzlin, has been 
issued by R. Friedländer & Sohn, of Berlin. 
Some interesting test-tube cultures of orchids are detailed by 
Bernard in the Revue Générale de Botanique of Nov. 15. 
A revision of Tradescantia, as known from Texas, is published 
by Bush in Vol. r4, No. 7, of the Zransactions of the Academy of 
Science of St. Louis. 
The prothallium of Ophioglossum vulgatum. is described by Bruck- 
mann in the Botanische Zeitung of December 15. 
Regneilidium diphyllum, the type of a new genus of Marsiliacez, 
from Brazil, is described and figured by Lindman in Vol. 3 of 
Arkiv för Botanik. 
An important paper on Cyanophycez, by Zacharias, is separately 
printed from Vol. 21 of the Jahrbuch der Hamburgischen wissenschaft 
lichen Anstalten. 
The first part of a historical review of the origin of species by muta- 
tion is contributed by Harris to Zhe Monist of October. 
An important paper by Goebel on cleistogamous flowers and the 
adaptation theories is begun in the Biologisches Centralblatt of 
November. 
The summer activity of some spring flowers is discussed by Dr. 
Keller in Part 2 of the current volume of Proceedings of the Academy 
of Natural Sciences of Philadelphia. é 
A paper on the origin and nature of color in plants, by Kraemer, 
is contained in the Proceedings of the American Philosophical Society, 
No. 177. : 
Country Life in America for December contains striking pictures 
of Anemone patens nuttalliana blooming in the snow. 
A lecture by Haberlandt on the sense organs of plants is being 
Published in current numbers of the Naturwissenschaftliche Rund- 
A 
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