y66 c. skottsberg 



Indies. The genus is circumpolar-subantarctic. Under these circumstances I have 

 thought it better not to include P. diiale among the ferns known with certainty 

 to occur in our islands.] 



•^Polypodium trichomanoides Sw. 



Cited for Juan Fernandez in HOOKER & Baker, Syn. Fil. 326 but not by 

 CllRlSTENSEN, nor by LOOSER. Also in this case Mr. Ballard kindly offered 

 his assistance, and 1 obtained as loan a sheet from the Kew Herbarium containing 

 the following lots: South America (Pearce), lirit. Guiana (IM Tiilrn), Brazil 

 (Blanchet), and Juan Fernandez, Douglas (4 pieces), labelled by W. J. HoOKER. 

 All are typical trichomanoides. DOUGLAS collected in Masatierra, and we have 

 to take the statement for good, even if this little fern has escaped all other 

 collectors. Dr. Herzog recognized the fragments of two Hepaticae stuck in the 

 tuft of the fern as two species of Plagiochila, \iXoh'd\:>\y filipendula St. and Lechleri 

 St. Neither is registered by Herzog in his treatment of the Hepaticae in this 

 volume, but they occur in Chile and West Patagonia and may very well await 

 their discovery in the islands. 



Area of distribution: Tro[)ical America, Juan Fernandez. 



49. Ophioglossum fernandezianum C. Chr.; C. CllR. & Skottsb. 1.44. For 

 affinities,- see CLAUSEN I.e. 153, 154. 



Lycopodium L. 



In his strange Handbook of the Lycopods, NesSEL 1.80 gives the following 

 information on their occurrence in Juan P'ernandez: '"Die Insel Juan F'ernandez" 

 — this name is sometimes used instead of Masatierra, but Lycopods have been 

 found only in Masafuera — "weist nur 7 Arten auf, wovon 2 endemisch sind: 

 "<y. sanrurus\ — L. scariosimi, Gayamnn, Skottsbergii, clavaUivi, magellaiiiaim, 

 Ciaininghauiii'. In his enumeration of the species, UrostacJiys sanrurus is quoted 

 for "Juan Fernandez, Cumberland Bay, Herb. Stockholm!", LycopodiuDi scariosum 

 is not credited to these islands, L. Gayamim is called L. scariosutn var. Gayanum, 

 and L. Skottsbergii appears as L. scariosinn var. Gayanum f. Skottsbergii. L. 

 clavatum is not cited, but, quite correctly, L. magellanicuni (our spm 482), and, 

 besides, a var. Cunninghaniii, HOCIISTEDT 1/4 1913. L. sca^'iostivi var. Gayanum 

 f. Skottsbergii was described in Nessel 2. 172. The specimen of L. saururiis 

 referred to by Nessel as being in the Stockholm herbarium was searched for 

 in vain. No so-called Urostachys is credited to Juan I^'ernandez by HerteR. 



50. L. magellanicum Sw. C. Ciir. & Skottsi;. i. 45. 



The form from Masafuera is very robust, larger than any we had seen from 

 the South, and possibly approaches Baker's var. Cunjiinghainii, Baker 2. 25. 

 There are many habitat forms of L. magellanicum, but only one form in Masa- 

 fuera, and as long as nothing is known of its alleged taxonomic value, I cannot 

 find any good reason to give it a special name. 



