62 CARL SKOTTSBERG 



together with several species not found by FuENTES. On the request of Pro- 

 fessor ROBINSON I have determined the »Albatross» collection. All the deter- 

 minations, together with the notes on the labels 1 , as well as all previous re- 

 cords known to me, are included in my list. 



Finally, it should not be forgotten that the cultivated plants were treated 

 by FUENTES (1. c.) and lately by W. KNOCHE in »Ueber die Kulturpflanzen 

 der Osterinsel» (Zeitschr. des Deutsch. wiss. Ver. zur Kultur- und Landeskunde 

 Argentiniens, Buenos Aires 1919). In some cases we cannot tell whether a 

 plant used by the natives as a food plant or for other practical purpose was 

 a member of the flora when the first settlers arrived or if it was introduced by 

 the natives on that occasion or later (but in any case before the discovery ot 

 the island in 1722). When I made my remarks on the cultivated plants (Notes 

 on a visit to Easter Island, Vol. I of this work), the news of Knoche's paper 

 had not yet reached this country. According to him, the sweet potato existed 

 in Easter Island already before the visit of ROGGEVEEN, the discoverer; for 

 Behrens, who accompanied ROGGEVEEN, enumerates »Bataten, die wie Brot 

 schmeckten». ROGGEVEEN himself did not mention this plant, unless it was 

 included under »aardgewasch». However, as BEHRENS expressly states that 

 sweet potatoes were plentiful, they must have existed long before the Europ- 

 eans landed on the island. 



In the determination of my plants I was assisted by Prof. Dr. R. PiLGER 

 (Gramineae), Superintendent Dr. G. KtlKENTHAL (Cyperaceae, see Fedde's 

 Repertorium XVI, 1920), Mr. J. HUTCHINSSON (Sisyrinchium, Polycarpon), Mr. 

 O. E. SCHULZ (a Nasturtium) and Prof. Dr. G. BlTTER (a Solanum). I hereby 

 cordially thank them for their kind assistance. My thanks are also due to Dr. 

 O. Stapf and other members of the staff at the Kew Herbarium for great 

 help in various matters during my visit to that establishment. 



An* before a latin name signifies that the species has not been recorded 

 before. 



The specimens collected by the Albatross Expedition are quoted thus: 

 Albatross no. — ! All other numbers refer to the collection made by the 

 writer and Mrs. SKOTTSBERG. The zoologist, Mr. BACKSTROM, brought me a 

 few plants from Motu Nui, the small rock near the southwestern promontory 

 of Easter Island. A map, showing the localities mentioned below, was pub- 

 lished in Vol. I, No. 1. 



1 »Rana Koa» and »Rana Roka» on the labels have been corrected to Rano Kao and R. 

 Raraku. 



