Some desmids from Newfoundland 





Joseph Augustine Cushman 



During the past year material has been obtained from New- 

 foundland which has added many species to the few which were 

 previously known to belong to the flora of the island. The 

 greatest number of species were obtained from material collected 

 by Mr. Owen Bryant at St. Anthony in May, 1906. Some of the 

 species were not previously known from North America. In 

 addition to this material a number of species were obtained from 

 Utricidaria collected by Waghorne at Bay of Islands. This added 

 several species not obtained in any of the other material. Included 

 in the present paper are the species found by the writer in Dr. G. 

 M. Allen's material from Rose au Rue, and published in this 

 journal for November, 1904. In certain cases the synonymy has 

 been altered and in these species the corrections are here made. 

 Material has thus been obtained from three points on the island 

 fairly remote from one another. As a result of the work seventy- 

 two species included in seventeen genera are here noted from 

 Newfoundland. None were recorded from the island previous to 

 the former paper. 



MESOTAENIUM Nag. 1849 



1. Mesotaenium DeGreyi Turn. 



Length 83 jx ; breadth 20 ft. Occasional, St. Anthony. 



2. Mesotaenium Endlicherianum Nag. 



. Length 35/i; breadth 12//. Very common, Rose au Rue. 



CYLINDROCYSTIS Menegh. 1838 



3. Cylindrocvstis Brebissonii Menegh. 



Length 54//; breadth 18 ft. Fairly common, St. Anthony. 



4. CYLINDROCYSTIS AMERICANA MINOR Cushman. 



Length 40 pt; breadth 18 ;i. Common, Rose au Rue. 



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