1899] BRIEFER AK TICLES 71 
no way connected with the activity of protoplasm. The well-known 
power of dead roots to take quantities of water would furnish the 
necessary supply of this liquid. That ice crystals can be formed 
elsewhere and almost anywhere in or on living woody plants has often 
been demonstrated, but such phenomena ensue under conditions differ- 
ing widely from those offered by the soil or dead herbaceous plants. 
D. T. MacDoveat, University of Minnesota. 
ANOTHER STATION FOR THOREA RAMOSISSIMA. 
On October 1, 1898, Mr. A. A. Hunter, collector for the botanical 
laboratory of the University of Nebraska, was fortunate enough to find 
good specimens of the curious and apparently rare alga ZThorea ramo- 
Sissima Bory, in Rock creek, a small stream near Lincoln, Nebraska. 
The plants were floating a little beneath the surface, along with other 
alge, in swift-running water. Enough material was obtained for a 
thorough study of the structure of the free-floating part of the plant, 
and these have since been kept alive and growing in aquaria in the 
University plant houses. No specimens of the basal disk* have yet 
been secured, but as the station is not difficult of access it is hoped 
that these may be obtained next season, and the sexual organs studied. 
A preliminary paper is now in preparation by Mr. Hunter and G. G. 
Hedgcock, in which what is known of its structure and distribution 
will be discussed.— Cuartes E. Bessey, Zhe University of Nebraska. 
* Haftscheibe or Fuss of Schmidle. Hedwigia 35:3. 1896. 
