158 THE VOYAGE OF H.M.S. CHALLENGER. 



Coffea bengalensis, Roxb. 



Coffea bengalensis, Roxb. ; Hook, f., Fl. Brit. Ind., iii. p. 153. 

 Coffea horsfieldiana, Miq., Fl. Ind. Bat., ii. p.'308. 



Babar. — This tree ranges from the tropical parts of the Himalayas to Java and the 

 present island. There is about a score of species of this genus in Tropical Africa and 

 Asia, besides the coffee-yielding species Coffea arabica and Coffea liberica. 



Since the appearance of the third volume of Oliver's Flora of Tropical Africa, Mr 

 Hiern has published an elaborate monograph of the African species in the Transactions of 

 the Linnean Society, Botany, N. S., i. p. 169. 



Morinda citrifolia, Linn. 



Morinda citrifolia, Linn. ; Miq., Fl. Ind. Bat., ii. p. 242; Bentb.., Fl. Austr., iii. p. 423; Seem., Fl. 

 Vit., p. 129; Hook, f., Fl. Brit. Ind., iii. p. 155; H. Mann in Proc. Arner. Acad., vii. p. 170; 

 Nadeaud, Enum. PI. Tahiti, p. 52 ; Jouan in Mem. Soc. Sci. Nat. Cherbourg, 1865, xi. p. 111. 



Maru ; Moa. — Generally diffused both on the coast and inland in Tropical Asia, Africa, 

 and Polynesia ; also occurring in North Australia. 



The various economic applications of different parts of this tree may partly account for 

 its very wide distribution, though Jouan expresses the opinion that its distribution in 

 Polynesia is due to oceanic currents carrying its fruit from island to island. It is a com- 

 posite or multiple pulpy fruit, containing a number of very hard one-seeded pyrenes. Jouan 

 states that it is found " sur toutes les iles du Grand-Ocean entre les tropiques, le plus 

 souvent au Lord de la oner et sur lesjlancs des coteaux pen eleves; " and there are specimens 

 from a large number of the islands in the Kew Herbarium. Mann indicates it as a plant 

 probably introduced by the aborigines in the Sandwich Islands ; and this view is supported 

 by the fact that it is known, according to Jouan, by the same name, " Noni," in the Mar- 

 quesas and the Sandwich Islands, and by the very similar name " Nono " in Tahiti. It bears 

 the name of " Kura " in the Fij is. An allied species, Morinda f or steri, Seem., ranges through 

 the South Pacific Islands from the Fijis to Pitcairn Island. Genus generally spread over 

 the tropics. 



Morinda bracteata, Roxb. 



Morinda bracteata, Roxb. ; Miq., Fl. Ind. Bat., ii. p. 243; Hook, f., Fl. Brit. Ind., iii. p. 156 (var. 



Morinda' citrifoliae). 



Ki ; Timor Laut. — This species is common wild, and is cultivated in various parts of 

 India and Ceylon, and throughout the Archipelago, but it has not been found in Australia. 



Psychotria spp. 



Arrou ; Ki ; Timor Laut. — Of this vast genus (about 500 species are known), four or 

 five species were collected ; but the specimens were not identified with described species, 

 and they are insufficient for determination or description. 



