i82 Alexander W. Evans, 



shorter and more robust. These striking differences he attributes 

 to environmental factors and intimates that too much emphasis 

 has been laid on differences in the size of the cells in distinguishing 

 species of Ancnra. Unfortunately he tells us nothing specific 

 about the other specimens which he cites. This is especially to be 

 regretted in the case of the plant from Java, since Schiffner does 

 not accredit A. stolotiifcra to Java at all and since he does accredit 

 to the island, under the name Riccardia scabra Schiffn., another 

 species with a lamellated cuticle (20, p. 41). The question at once 

 arises, is Stephani's "A. sfolonifera" from Java the same as R. 

 scabra f Apparently not. since Stephani admits the validity of 

 R. scabra, describing the cuticle as "aspera" ; and yet this, and 

 similar questions regarding the specimens from Chile and Luzon 

 could be definitely answered only by the careful study of the 

 specimens in the Stephani Herbarium. 



In order to throw some light if possible on the specimens cited 

 under A. stolonifera from the Straits of Magellan, the writer has 

 examined the series of Cunningham's Riccardiac in the Alitten 

 Herbarium. Unfortunately there is nothing labelled "A. stoloni- 

 fera", and the specimens which come closest to Stephani's descrip- 

 tion are those listed above under R. nudiniitra. These specimens 

 agree in their irregular branching and numerous stolons and in 

 their lack of true wings. The cuticle, however, is perfectly smooth, 

 and the difference in size between the superficial and interior cells 

 is much less marked than in Stephani's figure of A. striolata. In 

 spite of these differences the writer is inclined to believe that these 

 specimens formed the basis for Stephani's record and would sug- 

 gest that A. stolonifera be omitted from the list of Chilean species, 

 until its presence has been more definitely established. 



21. Riccardia floribunda (Steph.) comb. nov. 



Aneiira floribunda Steph. Bull. Herb. Boissier 7: 749. 1899. 

 Ancnra profunda Steph. Kungl. Svenska \^et.-Akad. Handl. 



46^: 8. /. I, e. 191 1. 



Specimens examined: on rotten logs, Puerto Angosto. Desola- 

 tion Island, 1896, Dnscn 261 (N. Y., U., listed by Stephani as 

 Aneura floribunda, 29, p. 8) ; Hale Cove, Hale Island, 1908, 

 Skottsberg J2 (U., labelled A. profunda and listed under this name 

 by Skottsberg, 22, p. 8) ; "ex loc. natali," 1908. Scottsberg (B., 



