A SUPPI.KMKNT TO THK PTERIDOPHVTES AND PHANEROGAMS OF JUAN FERNANDEZ 767 



51. L. scariosum l^'orst. L. Gayaiiuui Remy, C. CiiR. & Skottsh. 1.45. 



Var. Caya)ii(ni f. Skottsbeygii Herter ex Xessel was based on my material 

 from 191 7, while the winter material, collected in the same place in 1908, was 

 called V. (unyamiDt. In Nkssp:l i. 345, nos. 381, 416, 417 and 534 were cited for 

 f. Skoitsbcrgii, in 2. 172 no. 534 is not mentioned. Where he got nos. 381 and 

 417 I cannot understand, because 381 in my collection (and the numbers are 

 of course the same in all herbaria) is Serpyllopsis cacspitosa and no. 417 Jir?ge7-on 

 rupicola. In 1949 Herter (i. 41) raised f. ^^YV/j-^i^r^// to specific rank. Strangely 

 enough, in his paper 1950 (2.95) L. Skotfsdergii {rom ]. Fernandez figures under 

 Ser. Magcllanica, where it does not belong. In Herb. Stockholm are three sheets 

 of a stunted form of L. niagellaniciu)i, collected by me in South Georgia, 1902, 

 and labelled L. Skottsdergii Werter by Herter himself. This was another MSS name, 

 published without descri[:)tion in a paper by RoiVAlNEN (Anal. Vanamo 6, 1936); 

 in Nessel I (1936) 316 the same specimens were called L. magellaiiicum var. 

 pusilhon Herter, and a description of this variety was published in Nessel 2 

 (1940) 170. It was raised to specific rank under the name of L. Urani Herter 

 in 1949 (1.42). L. Skottsbcrgii Herter 1949 (J. Fernandez), not 1936 (South 

 Georgia) must have been classified with Magellanica by an unintentional mistake. 



Baker united Gayannm of Chile with scariosum of New Zealand, regarding 

 the former as intermediate between scarwsiiin genuinum diwd xdiW jfiissieui^Desv.) 

 Baker 2. 29 from the tropical Andes and Brazil. Herter treats all as separate 

 species. Even with regard to the large-leaved Jussieui with its long peduncle 

 carrying from i to 5 spikes, the right to specific rank could be disputed. When 

 working on my collection Christensen left L. Gaymium standing, and I had 

 no objection, but I believe now that Baker's attitude is more correct. I have 

 compared Gayanu)>i and scariosum without being able to discover any tangible 

 differences. Measurements of numerous distichous leaves from several individuals 

 and taken from branches of the same type gave 4.5 — 6X i — 1.3 mm for 

 scariosum and 5 — 6X i.i — 1.4 mm for Gayaiium. The adnate basal portion, 

 2.5 — 3.5 mm long, is alike in both; the same is true of the linear-filiform leaves 

 and of the sporophylls and spores. The sporophylls are 3.5 — 4 mm long and 

 1.5 — 2 mm wide. 



Nessel calls the sporophylls "bewimpert" in both var. GayanuDi and f. 

 Skottsbcrgii. "Bewimpert" would mean ciliate along the edge. The scariose margin 

 is more or less uneven, but not ciliate. 



L. scariosum forms another connecting link between South America and 

 New Zealand. 



2. C. CHRISTENSEN and C. SKOTTSBERG: The Ferns of Easter 

 Island. 



I. Asplenium adiantoides (L.) C. Chr. var. squamulosum C. Chr. & Skottsb. 



2.47. 



Add Orongo, in a ruined stone hut, Chapin no. 1033! 



