the host, whether it is present in the seeds, whether the Gunnera 

 can thrive in sterile cultures without the Nostoc, and whether the 

 alga can live outside the host. 



C. Stuart Gager. 



NOTES, NEWS AND COMMENTS. 



The new driveway connecting Moshulu Parkway with the 

 principal driveways of the Garden was thrown open to the public 

 by the park officials on August 27. 



Dr. S. P. Verner, who reports several trips made into the south 

 central parts of Africa, called at the Garden recently to arrange 

 an exchange of plants. 



Dr. C. B. Robinson, assistant curator, spent the month of 

 August collecting in Nova Scotia, dividing his time between Cape 

 Breton and Pictou. About 275 species, mostly flowering plants, 

 were obtained by him. 



Dr. Murrill returned from Europe on August 18. A full 

 report of his trip will appear in the October number of the 



Dr. Rydberg's Flora of Colorado, published as a bulletin of the 

 Colorado Experiment Station, appeared in August. The volume 

 consists of nearly five hundred closely printed pages. 



Dr. Arthur Hollick continued the investigation of the Atlantic 

 Coastal Plain Cretaceous flora during August, on Block Island, 

 where fossil plants and lignites were collected which will be valu- 

 able supplementary material to that collected earlier in the sum- 

 mer in New Jersey and on Martha's Vineyard. The Block Island 

 specimens collected by Dr. Hollick during this and a previous 

 trip are the only specimens of Cretaceous plants known to have 

 been found there. 



Dr. Rydberg attended the botanical symposium at Little Moose 

 Lake in the Adirondacks in July and went from there to Ottawa 

 to examine the collection of Rosaceae in the herbarium and to 

 collect fresh specimens of this family in the vicinity. Returning, 

 he collected at Lake Placid in the Adirondacks and later visited 

 the Catskills. 



