INK PTER1DOPHYTA OF THE JUAN FERNANDEZ ISi \nds 15 



while, on the other hand, his fig. 27 A [. dichotomum* illustrates a form of 

 //. 1 it net itum. 



Area of distribution: South Chile, Valdivia to Western Patagonia; [nan 

 Fernandez. 



15. II. tortuosum Hook, et Grev. Ic. Fil. tab. 129 (1829); Hemsl. 69; 

 Johow [893: 43, [896: 172, 



Apparently rare, but easily confounded with the former. (Fertile Feb.) 



Masatierra: REED(!) in Herb. Kew. 



*Masafuera: Q. del Blindado, in woods, 440 m (no. 1136); lieath at the 

 upper course of Q. del Mono, c. 850 m (no. 113 5). — New for this island. 



To this species we refer two sets of specimens from Masafuera. They 

 differ from the common //. dichotomum in the rather persistent, broad, crisp, 

 brown wings of the stipe, the non-plicate lamina, which is more or less undulate 

 with much larger marginal teeth. The segments are closer and the larger 

 pinnae have the pendent tips found in most specimens from the continent. The 

 valves of the indusium are rather acute and nearly entire, thus approaching //. 

 dichotomum. 



H. tortuosum was also collected in Masatierra by Philippi and DOWNTON, 

 t. HEMSLEV. We have not seen the former; the latter (Herb. Kew!) belongs to 

 dichotomum. 



Area of distribution: South Chile, Valdivia to Fuegia, Falkland Islands; 

 Juan Fernandez. 



\H. reniforme Hook, is mentioned by PlIILIPPl (Anal. Univ. 1856: 160, 

 Bot. Zeit. 1856: 631) who undoubtedly based his statement on Gay 6: 535. It 

 has not been found by any of the known collectors, and Gay does not tell 

 where he got his information as to its occurrence in Juan Fernandez. As far 

 as we know there are no specimens in any herbarium from this place, so that 

 it must be excluded from the list. 



H. dicranotrkhum (Pr.) Sadeb. (Syn. H. chiloense Hook,), is listed by 

 JoHOW 1893: 44 and 1896: 172, as gathered by Reed in Masatierra. The 

 determination is probably incorrect. 



In Herb. Kew.(!) are specimens of H. dentatum Cav. (Syn. H. Bridgesii 

 Hook.) labelled (by Philippi) Juan Fernandez oct. 1872 REED. As no author 

 lists this species, the locality remains doubtful.] 



Cyatheaceae. 



Thyrsopteris Kunze 



16. T. elegans Kze Linnaea 9: 507 (1834), Farrnkr. tab. 1, et auctt.; 

 Hemsl. 66\ Johow 1893: 22 f. 4, 1896: 155. -- Syn. Panicularia Berteri Colla 

 1836: 35 tab. 64. 



Characteristic of the upper montane forests in Masatierra, generally not 

 descending below 400 m; belonging to the highland heath in Masafuera, where 



