BRVOLOGIST 



VOL. XX, PLATE III 



Explanation of Plate III 



1. Riccia vinlarea M. A. Howe. Photograph, natural size, of specimens collected on Cayo 

 Muertos, Porto Rico, March 9-12, 1915, by Britton, Cowell and Brown (wo. soUq). The speci- 

 mens, still living, though dried for about ten weeks, were soaked out and photographed on May 

 20, 1915. 



2. Riccia McAllisteri M. A. Howe. Photograph, natural size, taken in October, 1914, of 

 type specimens grown at The New York Botanical Garden; original from Granite Mt. (about 70 

 miles northwest of Austin), Texas, collected by V. McAllister {no. 3) in May, 1014. 



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