104. FLORA VITIENSIS. 
—Samoan Islands (U. S. Expl. Exped.), Society Islands (Banks and Solander! in Brit. Mus.). 
Nomen vernac. Tahitense, teste Pritchard, **'Tavivi^ (i.e. twiner), teste Solander, ** Tahwihwi," vel 
“«Tawhiwhi;” Raiatense, teste Solander, * Hoohove,” vel * Huhue.” 
I take A. Gray's Karivia Samoensis, var. B, from Viti, to be the same plant which Banks and Solander 
gathered in the Society Islands, which Solander, in his unpublished Prim. Fl. Ins. Pacif., describes as Cucumis 
Maderaspatanus ?, and for which he quotes Parkinson's Drawings, t. 111, with his own manuscript name 
attached. Solander describes the female flowers as growing in the same axils as the male, and on isolated, 
thin, and 1-florous peduncles. The fruit he has not seen, nor do his specimens exhibit any trace of either 
female flowers or fruit. The male flowers are racemose, the pedicels being arranged in whorls, which, when 
the racemes are just beginning to blossom, gives them the appearance of small umbels or corymbs, as stated 
by A. Gray. The racemes are either simple or furcate, 4—5 inches long; the corolla cream-coloured. The 
upper surface of the leaves is generally covered with minute white dots, which are noticed by A. Gray, but 
not indicated by the accurate Parkinson, probably they are not so prominent in fresh specimens; even in 
some of the leaves before me they are scarcely perceptible. Solander says of them, * Glandulis minutis 
distinctis, in siccis parum incrustatis." When the female flowers and fruit are better known, it will pro- 
bably turn out that the species now under consideration is not a true Karivia. Bryonia? (sp. nov.?), 
No. 290 of Guillemin's list, Tahiti (Bert. et Morenh.), and Bryonia Johnstoni, Cuzent, O'Taiti, p. 232 
(name only), are doubtless identical with this plant. 
Var. B. Vitiensis; folis supra scabridis; pedunculis fructiferis brevissimis. A. Gray, l. c.— 
Ovalau (U. S. Expl. Exped.), Viti Levu (Seemann! n. 192). 
II. Citrullus, Neck. Elem. n. 389; Endl. Gen. n. 5131. Flores monoici. Masc.: Calyx pro- 
funde 5-fidus, planiusculus, laciniis lanceolato-linearibus. Corolla imo calyci adnatim inserta, 5-partita, 
plana, subrotundata. Stamina 5, ime coroll: inserta, 3-adelpha ; filamenta brevia, antherz 1-loculares, 
loculo lineari, secus connectivi inciso-3-lobi marginem dorsalem gyrose adnato. Fom.: Calyx tubo 
globoso, cum ovario connato, limbo supero, profunde 5-fido. Corolla maris. Stamina sterilia rudi- 
mentaria. Ovarium inferum, 3-6-loculare, placentis juxta septa utrinque parietalibus, oc-ovulatis. 
Stylus cylindraceus, 3-fidus; stigmata convexa, reniformi-cordata. Bacca globosa, carne solida, oœ- 
sperma. Semina obovata v. oblongo-obovata, compressa, basi truncata, margine obtusa. ` Embryonis 
exalbuminosi cotyledones foliacez, plano-convexz, radicula brevissima centrifuga.—Herbz annus, 
humifuse; foliis alternis cordatis lobatis, lobis integris pinnatisectisve, cirrhis 2-3-fidis; pedunculis 
axillaribus solitariis 1-floris.—Colocynthis, Tourn. Inst. 107. Rigocarpus, Neck. Elem. n. 386. 
l. C. vulgaris, Schrad. in Eckl. et Zeyh. En. 279; valde pilosus; foliis obtuse pinnatisectis 
subglaucescentibus; floribus 1-bracteatis, bractea oblonga; bacca subglobosa glabra stellato-maculata. 
— Cucurbita Citrullus, Linn. Spec. 1435. Cucumis Citrullus, Ser. in DC. Prodr. vol. iii. p. 301.— 
Cultivated and almost naturalized in Viti (Seemann !). : : 
. The Water-Melon is also cultivated in the Hawaiian (Seemann!) and Society Islands (Cuzent), but 
in all these groups it is known to have been introduced by Europeans. The fruit is eaten. 
III. Momordica, Linn. Gen. n. 1477, excl. sp. ; Endl. Gen. n. 5133. Flores monoici. Masc. : 
Calyx brevissime campanulatus, 5-partitus, patens. Corolla calyci inserta, 5-partita, laciniis paten- 
tibus obtusis subundulatis. Stamina 5, imo calyci inserta, 3-adelpha; filamenta brevia, crassa; an- 
therz conniventes, 1-loculares, loculo lineari, connectivi crassi undulati margini extus adnato. Foem.: 
Calyx tubo obovato v. subcylindrico, cum ovario connato, limbo supero 5-partito patulo. Corolla 
maris annulo epigyno inserta. Stamina 3 rudimentaria, styli basim cingentia, Ovarium inferum, 
3-loculare, placentis juxta septa hinc parietalibus oc-ovulatis. Stylus cylindricus, 3-fidus v. 3-partitus. 
Bacca pulposa muricata v. tuberculata, maturitate elastice irregulariter rupta, co-sperma. Semina 
compressa, marginata, integumento baccato . colorato, ʻexsiccatione rugoso. Embryonis exalbuminosi 
cotyledones foliaceæ, plano-convexæ, radicula brevissima centrifuga.—Herbe glabriuscule v. hirtæ; 
