2IO CARL SKOTTSBERG 



Von E. insignis ist sie verschieden durch den kraftigen Wuchs, die stum- 

 pfen und stumpfzahnigen, am Grunde weniger verschmalerten Blatter und Brac- 

 teen, durch die grossere Zahl der Blattzahne, durch die kiirzeren und stumpfen 

 Kelchzahne, die abgerundeten Kelchbuchten und die fast gleichlangen Spitzen 

 der Antherenhalften. — Von E. amenta ist E. formosissima starker verschieden, 

 besonders durch die sitzenden Bliiten und die breiteren, am Grunde nicht so 

 stark verschmalerten Blatter. 



Es ist pflanzengeographisch und florengeschichtlich gewiss hochst beachtens- 

 wert, dass E. formosissima morphologisch nicht den geographisch relativ nahen 

 siidamerikanischen Arten sich anschliesst, sondern die Verbindung zwischen 

 japanischen und neuseelandischen Formen herstellt.s 



Some remarks on the composition and character of the 



indigenous flora. 



My list contains 142 species considered to be indigenous in Juan Fernandez. 

 Some are questionable in this respect; but, on the other hand, a few of those 

 enumerated below as introduced might, perhaps, equally well be classed as 

 members of the wild flora. 



There are 40 natural orders (families) and 81 genera represented; the 

 relation between genera and species is 1 : 1,75, a proportion to be expected in 

 a remote insular flora, all the same if we regard it as a remnant of an old 

 flora or brought into existence by occasional transoceanic migrations. 



Of the species known before to occur in the islands seven have not been 

 found again by us, viz. Podophorus bromoides, Trisetum chromostachyum, Cyperus 

 reflexus, Urtica Masafuerae , Phrygilanthits Berteroi, Cardamine chenopodiifolia 

 and Dendroseris neriifolia. In the case of Urtica and Cardamine , the season 

 was not the proper one. On the other hand, our survey has revealed the 

 existence in the islands of many species not found before. In 1908, 10 were 

 added, and here 31 more are listed, so that the total increase amounts to about 

 40%. It is greater still if we compare with Johow's flora, as a few older spe- 

 cies have been taken up again by the writer (Wahlenbergia, Dendroseris). 

 Some species classified as indigenous by JOHOW (some, however, with hesita- 

 tion) were transferred to the introduced ones. 



A great deficiency in the older floras was the scarcity of exact localities. 

 As the physical conditions are so different in different parts of these islands, 

 in spite of their small size, it is of course quite necessary to register the stations 

 of all the plants; further, only in this way we get an idea of the frequency of 

 the different species. We have done our best to supply this need. 



Above, 24 species and one subspecies were described as new, or were 

 established by other authors from my material (Uncinia costata Kukenth., Agrostis 

 masafnerana Pilger, Broimis masafiieranus Skottsb. et Pilger). 



Only five of the new species were described from Masatierra (one, Dendro- 

 seris litoralis, also occurring in Santa Clara), the remainder all came from Masa- 



