NEW SOUTH SEA ISLAND PLANTS. 75 
fortunately Mr. Storck’s specimens have only male flowers ; at least, 
the ovary appeared to be abortive and one uniform black mass. M. 
Vitiensis is a middle-sized tree, with terete hanging branches... Leaves 
3 inches long, 1 inch broad; petiole 4 inch long. Peduncles longer 
than the petiole. Flowers minute. Filaments flat, broader towards 
the apex. Branches twice as long as the anthers. Petals glabrous, 
almost cucullate at the apex, and without apparent veins. Pedicels 
with minute hair. 
TRACHYMENE (Didiscus) Homei, Seem. m. sp. ; caulescens, glaber- 
rima; foliis inferioribus longe petiolatis, 9-sectis, laciniis 2-pinnatifidis, 
segmentis ultimis linearibus acutis, superioribus breviter ‘petiolulatis v. 
sessilibus ; umbellis simplicibus, terminalibus, aggregatis (3-6) ; invo- 
lucro 10-12-phyllo, laciniis lineari-lanceolatis, longe acuminatis ; pe- 
dunculis compressis; floribus . . . ; fructibus lzvibus, glaberrimis, càr- 
pophoro 2-partito.—Isle of Pines, off New Caledonia (Sir E. Home !, 
in Mus. Brit), v. s. s. flor. 
Entire plant about 1 foot high, apparently perennial. "The pedun- 
dés surrounding a flat disk, as in Trachymene cerulea, Grah. (Didiscus, 
Hook.), and a few of the external flowers of the umbel being abortive ; 
fruit orbicular, cordate at base. 
"The original species upon which Rudge established the genus Tra- 
chymene in the Linnean Transactions (x. p. 300, t. 21, fig. 2) was 
T. incisa, which must be regarded the type of the genus; and if it be 
penerically identieal with the more modern genus Didiscus, the latter 
must bé suppressed. ‘Rudge, in the place quoted, does not describe 
any other species of Trachymene, though De Candolle burdens him 
with the authority of T. lanceolata and T. ovata. The æstivation of 
Trachymene cerulea is vexillary ; the outermost petal being quite free, 
and overlaps those placed right and left of it. The latter two overlap 
the two following, which on one side are valvate. 
ArsopEIA (P) Storckii, Seem. n. sp. ; glabra; ramulis geniculato- 
flexuosis, foliis brevissime petiolatis v. sessilibus ovatis v. ovato-ob- 
longis acuminatis integerrimis, stipulis ovato-lanceolatis, floribus axil- 
laribus solitariis (viridibus), calycis laciniis 5 oblongis obtusis, petalis 
777, staminibus . . -; capsula ovato-oblonga obtusa 3-valvi, seminibus 
nuinerosis subglobosis glabris grani Piperis magnitudine. “ Serirak 
Vonó? incolarum. -Pott Kinnaird, Ovalau (Storck Pes. 
This plant may possibly be the type of a new genus, but there being 
