I From the Kui.lrtin op the Tokkby Koianicai. O.ui'.^g: 257 z;%,$ls. 21-22. 10 Jy 7912.I 



The genus Struthiopteris and its representatives in North America — I* 



Jean Broadhurst 

 (with plates 21, 22) 



Struthiopteris is here used for Willdenow's genus Lomaria, 

 which was published first in 1809. It includes also Robert 

 Brown's genus Stegania published in 1810. Christensenf reduces 

 Lomaria (including Stegania) to a subgenus of Blechnum and in this 

 subgenus recognizes one hundred species. Including the two 

 North American species placed under Lomaria by Willdenow, 

 thirty-six species have been described from North America under 

 the generic name Lomaria; this does not include the species since 

 placed in the genera Stenochlaena, Salpichlaena, and Plagiogyra. 

 Twenty-five North American species are recognized by the writer; 

 of these five are new and one must bear a new name. 



Though not included by Linnaeus in his Species Plantarum, 

 the genus Struthiopteris is much older than 1753. Trevisan| 

 gives 1 561 for the earliest use of this name and cites Valerius 

 Cordus§ as using Struthiopteris to distinguish Osmunda Spicanth. 

 It was later used in this sense by several others. The most 

 prominent was probably Haller;|| in 1742 he used the monomial 

 Struthiopteris, citing Struthiopteris of Cordus. 



Soon after 1753 the generic name Struthiopteris was used for 



* Based upon a preliminary report which was submitted in partial fulfilment of 

 the requirements for the Degree of Master of Arts in the Faculty of Pure Science, 

 Columbia University. 



t Ind. Fil. 150-161. 1905. 



J Atti 1st. Ven. III. 14: 553-588. 1869. 



§ Hist. PI. 2: 170. 1561. 



|| Enum. Stirp. Helv. 132. 1742. 



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