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THE FLORA OF RAROTONGA. 971 
CATALOGUE OF PH®NOGAMIC PLANTS AND FERNS observed during a Visit to the 
Island of Rarotonga, Cook Islands, May, June, and July, 1899. 
[Those species with an asterisk prefixed are probably naturalized. ` 
ANONACE. 
CANANGA ODORATA, Hook. f. et Thoms.—Native name Moto-oi. Common all round 
the island, but not ascending the hills. As in other parts of Polynesia, the fragrant 
flowers are used for scenting cocoa-nut oil. According to the chief Tarare, it was 
introduced by the natives themselves from Samoa, many generations ago. 
From Philippines, Java, and Burma, southwards and eastwards, but often cultivated. 
* ANONA SQUAMOSA, Linn.—Extensively cultivated by the natives and often naturalized 
near their villages. Introduced from Tahiti by the missionaries and early traders. 
South America, but now largely cultivated throughout the tropics. 
CRUCIFER. 
CARDAMINE SARMENTOSA, Forst.—Native name Toa-toa. Moist shady places, common 
by roadsides and in many of the native cultivations. 
Plentiful in most of the Pacific Islands, from New Caledonia to the Marquesas. 
*SENEBIERA PINNATIFIDA, DC. (S. didyma, Pers.).—Waste places and roadsides at 
Avarua, not common. Probably a recent introduction. 
A weed in all warm countries. 
LEPIDIUM PIsCIDIUM, Forst —Abundant along the shores, usually in shaded places. 
Not seen more than fifty yards from the beach. 
Pacifie Islands, from New Caledonia to Tahiti and the Sandwich Islands. 
CAPPARIDACE#. 
*CLEOME viscosa, Linn. (Polanisia viscosa, DC.).—Roadsides and waste places at 
Avarua, not seen elsewhere. No doubt a recent introduction. 
Most warm countries. 
CAPPARIS SPINOsA, Linn., var.—Coral rocks at the entrance to Ngatangiia Harbour. 
This appears to answer to C. sandwichiana, DC., a form which was first discovered in 
the Sandwich Islands by Menzies in Vancouver's voyage, and which was kept up as a 
distinct species by Asa Gray in the Botany of the United States Exploring Expedition. 
Mr. Hemsley, who has examined my specimens, considers that they are referable to 
C. spinosa, to which he reduces C. sandwichiana, DC., and C. mariana, Jacq., in Bot. 
Chall. Exped. i. 3, p. 120. 
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