THE FLORA OF RAROTONGA. 275 
*TRIUMFETTA SEMITRILOBA, Jacq. ?—An abundant weed in the cultivations of the 
natives, by roadsides, &c. It is difficult to decide whether my specimens should be 
referred to this species or to T. rhomboidea, Jacq. 
A common tropical weed. 
ELOCARPUS RAROTONGENSIS, Hemsl. (Plate 31.)— Native name Karaka. Common 
throughout the island, from sea-level to the tops of the hills. A tree 25-35 ft. high, 
with a slender trunk and pale green foliage. Flowers whitish. Berries blue. S 
Endemic. 
GERANIACE.E. 
OXALIS CORNICULATA, Linn.—Native name Koki. In shaded places, from sea-level to 
the tops of the mountains. 
Cosmopolitan. 
RUTACE.E. 
*CrrnUs MEDICA, Linn., var. ACIDA, Brandis.—The Lime is largely cultivated, and 
is now copiously naturalized throughout the lower portions of the island. 
Cultivated throughout the tropics. 
*CrrRUS AvRANTIUM, Linn.—The Orange was introduced about 1830 from Tahiti, and 
is now plentiful in suitable places throughout the island. 
Cultivated throughout the tropics. 
MELIACE. 
*MELIA AzEDaARACH, Linn.—Very plentiful in the lower portions of the island, 
forming large groves, and having all the appearance of a true native. I am assured, 
however, that it was introduced from Tahiti about forty years ago. It is the “Cedar” 
of the European settlers. 
Persia, India, and China, and extensively cultivated elsewhere. 
RHAMNACE. 
COLUBRINA ASIATICA, Brongn.—Common from sea-level to halfway up the hills. 
Polynesian Islands, from New Caledonia to the Marquesas, and northwards through 
Australia to the Malay Archipelago and India. 
ALPHITONIA EXCELsA, Reiss.—Scattered through the central and hilly parts of the 
island; not common. 
Australia and New Caledonia to Tahiti and the Marquesas. 
SAPINDACE. 
Dopon#A viscosa, Jaeq.—Native name Ake. Rocky places on the mountains, 
apparently rare. Summit of Mangatea, 1200 ft. ; ridges behind Tiriora. 
All warm climates. 
