i2. The Musci of the Juan Fernandez Islands. 



By 

 V. F. BROTHERUS. 



With 2 plates (26 — 27). 



Dr. C. BERTERO, well known for his important collection of vascular 

 plants made during several months' residence in Masatierra in 1830, was also the 

 first who contributed to our knowledge of the Juan Fernandez mosses, of which 

 MONTAGNE enumerates 17 species. 1 So far as I have been able to identify 

 these without having access to the original specimens, they have been included 

 in my list. Mr. E. C. Reed later collected a few species which were deter- 

 mined by Mitten (Reed is not mentioned, but is identical with »Mr. Saun- 

 DER's collector*) together with the collection made by Mr. MOSELEY during 

 the Challenger expedition, and published by HEMSLEY in the Challenger 

 Report, vol. I. Finally, JoilOW compiled a list of all species quoted for Juan 

 Fernandez. 2 A revised copy of this is found at the end of my paper. 



In August 1908, Professor SKOTTSBERG spent 8 days in the islands; after 

 his return, the small collection of mosses was handed over, together with 

 ample material from Chile, Fuegia etc., to M. JULES Cardot. The preliminary 

 list of CARDOT contained 38 species, of which 19 were labelled as new. Un- 

 fortunately, M. Cardot did not get an opportunity to publish his report before 

 the War, and during the occupation of Charleville by the German army a part 

 of his herbarium was lost, including the mosses from Juan Fernandez, of which 

 no descriptions had been prepared. This loss is the more to be regretted as 

 SKOTTSBERG, in his sketch of the vegetation, had inserted the names of the 

 mosses. 3 Undoubtedly the greater part of these was found again in 1916 — 17, 

 and many of the species described below must have been among CARDOT's 

 material, but as it is of course quite impossible to arrive at any safe conclusion 

 in this matter, the following names, written by Cardot on the labels and 

 published by SKOTTSBERG, will always remain nomina nuda and have 

 to disappear: Anoectangium fernandezianum, Bartramia leptopJiylla, Bryutn fer- 

 jiandezianum, Campylopus feniandezianus, C. fuscoluteus, Didymodon oligodontus, 



1 Prodromus Florae Fernandezianae. Ann. Sc. Nat. Ser. 3, vol. 4. 



2 Estudios sobre la Flora de las Islas de Juan Fernandez. Santiago 1896. 



3 Studien iiber die Vegetation der Juan Fernandez-Inseln. K. Svenska Vet.-Akad. Handl. 

 Bd. 51, No. 9. 



