80 CARL SKOTTSBERG 



according to LANGLE, a member of La Perouse's party, it was cultivated as a 

 medicinal herb (see KNOCHE 1. c. p. 13). Fuentes lists »Solanum sp. (?)» 

 adding »solo conozco por referencias». I have no doubt that all these state- 

 ments refer to the species found by us and described above by Professor 

 BITTER. This well known expert on the genus Solatium has described a num- 

 ber of Morellae of S. nigrum type, endemic in the southern seas; in a letter to 

 the writer he points out that >:die meisten Morellen sind Menschenbegleiter 

 und durchgangig in der Nachbarschaft des Menschen ansassig». 



3. Species unintentionally introduced with the human traffic after 

 the discovery by the Europeans in 1722. 



Sorghum Jialepense (L.) Pers. var. cffusnm (Hack.) Pilger. — Common in 

 enclosures protected from sheep and cattle: Hanga Ho Orno (no. 656); fre- 

 quently seen between Rano Aroi and Mataveri and between the latter place 

 and Rano Raraku. Introduced from Tahiti ace. to FUENTES 1. c. p. 5; brought 

 from Tahiti, not very long ago and possibly on purpose, all ace. to Mr. ED- 

 MUNDS, the manager in the island. 



*Disritaria horizontalis Willd. — Hanga Ho Orno, in crevices between 

 stones (no. 649, also Albatross no. 6!); Rano Kao, not uncommon (no. 667); 

 islet Motu Nui (no. 1200). 



Digitaria sanguinalis (L.) Scop. — Fuentes 1. c. — Widely dispersed 

 over the island (nos. 646, 1192). 



[Pauicum filiforme in FORST. Prodr. no. 38 is called Paspalum filiforme 

 Sw. by Endlicher 1. c. p. 157. These two names correspond to quite 

 different plants, ace. to Prof. Pjlger; the latter is a West Indian species, the 

 former is now called Digitaria filiformis Ell. and found in N. and S. America. 

 Possibly the Easter Island plant is only a form of D. sanguinalis.] 



Ccncluus ecliinatus L. • - FUENTES 1. c. — »On hill side, about 15 — 60 

 m alt.» (Albatross no. 3!); Hanga Ho Orno (no. 640). 



Bromus unioloides H. B. K. — FUENTES 1. c. — »Foot of cave just inside 

 Rano Kao» (Albatross no. 50!); Rano Kao, here and there in the crater (no. 

 674); islet Motu Nui (no. 1107). 



Cynodon dactylon (L.) Pers. — FUENTES 1. c. — » Abundant everywhere, 

 the common grass» (Albatross no. 5!); Hanga Ho Orno (no. 650); Mataveri; 

 Rano Kao; islet Motu Nui (no. 1188). 



Eleusine indica (L.) Gaertn. — FUENTES 1. c. — Mataveri (no. 985). 



*Hordeum murinum L. — » Inside of Rano Kao, no other example seen* 

 (Albatross no. 47!) 



*Sisyrinchium micrauthum Cav. — » Abundant in rocky plains of low eleva- 

 tions* (Albatross nos. 12! 30!) — A Peruvian species, also introduced into 

 Australia and New Zealand ace. to CheESEMAN. 



*Portulaca oleracea L. — Growing near beach, not abundant* (Albatross 

 no. 17!); Hanga Ho Orno, not uncommon (no. 636); Mataveri (no. 1 198). This 

 may equally well be regarded as indigenous; still, GUPPY thinks it has been 

 introduced into several places in the Pacific, f. inst. to Hawaii (1. c. p. 552). 



