198 Alexander IV. Evans, 



This well-known species of northern regions extends southward 

 into the West Indies, but the reports from Chile are exceedingly 

 doubtful. According to Taylor's own statements the var. 

 submersa probably represents a distinct species (see 13, p. 497), 

 and Schiffner describes the specimens which he cites as being some- 

 what aberrant. Unfortunately none of the specimens quoted have 

 been available to the writer. 



5. RiccARDiA PiNGUis (L.) S. F. Gray. 



Hermite Island, Hooker (14, p. 479; 34, p. 445, as Junger- 

 mannia pinguis) , near Valparaiso, D'Orbigny (13, p. 495, and 18, 

 p. 295, as Aneura pinguis) ; Cape Horn and Clarence Island. 

 Harlot, and Hoste Island, HaJin (2, p. 243). 



Since R. pinguis is almost cosmopolitan in its distribution its 

 occurrence in Chile would not be surprising, and it is possible that 

 some of the records are correct. One of Hooker's specimens has 

 been referred in the present paper to R. granulafa (see page 192) ; 

 another specimen, likewise in the jNIitten Herbarium, is clearly 

 distinct and may represent an etiolated form of R. pinguis. In the 

 absence of more typical material, however, it would hardly be wise 

 to give this specimen a definite name. The specimens listed by 

 Bescherelle and Massalongo have not been examined by the writer. 

 Some of them are referred to the var. denticulata (Nees) Besch. & 

 Massal., and it is possible that these might prove identical with 

 Hooker's specimen. It may be noted in this connection that 

 Stephani reports R. pinguis from the Falkland Islands (31, p. 2; 

 32, p. 7), although he does not accredit it to Chile. 



6. RiccARDiA piNNATiFiDA (Web.) Trevis. 



Without definite locality, Chile, reported by Montague (18, p. 

 205); Tuesday Bay, Naumann (ig, p. 42, as A. pinnatifida) ; 

 Punta Arenas and Rio Azopardo, Tierra del Fuego, Dusen (29, p. 

 9, as A. pinnatifida) ; near Harberton, Tierra del Fuego, Skotts- 

 berg (31, p. 2, as A. pinnatifida) . 



This species is often known as R. sinnata (Dicks.) Trevis. Its 

 specific limitations and geographical distribution are still incom- 

 pletetely understood, and reports from tropical and antarctic 

 regions are especially in need of confirmation. The specimen 

 from Tuesday Bay is described as richly branched with very narrow 

 divisions, showing that it is clearly different from the typical form 



