TJic Genus Riccardia in Chile. loi 



were proposed as new. The first was based on a specimen col- 

 lected by Reiche in southern Chile; the second, on a specimen 

 collected by Hariot on Clarence Island (west of Tierra del Fuego). 



According to his writings Stephani accepts twenty-nine species 

 of Riccardia as members of the Chilean flora. HA. Savatieri is 

 reinstated as a species, and if A. fucoidcs, R. pinguis and A. 

 Poeppigiana are added, a total of thirty-three species is obtained. 

 In the writer's opinion, however, seven of these species are 

 reported on insufficient evidence and four of Stephani's species 

 ought to be reduced to synonymy. This would leave a residue 

 of only twenty-two species. To these should be added the three 

 species proposed as new in the present paper, thus raising the total 

 to twenty-five. In all probability other species remain to be dis- 

 covered. In fact at least two species have come to light which do 

 not agree with any of those included but of which the material is 

 too fragmentary for description. It should be noted further that 

 ten of the species are known from a single collection each and that 

 even the largest and most conspicuous species are still inadequately 

 understood. 



Through the kindness of correspondents, the writer has had 

 the unusual privilege of stud3'ing original or authentic specimens 

 of nearly every Chilean species of Riccardia. Especial thanks are 

 due to the curators of the botanical museums at Upsala and Stock- 

 holm, where Dusen's and Skottsberg's material is deposited ; to 

 the curator of the Boissier Herljarium, M(hich includes the exten- 

 sive collection of Stephani ; and to the curator of the New York 

 Botanical Garden, who has in his charge the very representative 

 Mitten Herbarium. A valuable collection of Chilean Hepaticae 

 made by Professor Roland Thaxter of Harvard University has 

 likewise been available for study; and important specimens have 

 been received from Professor Massalongo of Verona and Profes- 

 sor Schiffner of Vienna. To all who have aided him in his work 

 the author would here express his sincere thanks. 



