- 
FLORA VITIENSIS. 133 
vissima; anthers oblongo-lineares, basi 2-lobe. Stylus filiformis, basi disco epigyno elevato arete 
cinctus; stigmata 2 v. 3, linearia seu filiformia. Ovarium 2-3-loculare. Ovula in loculis solitaria, e 
basi erecta, anatropa. Drupa apice nuda, 2-pyrena, raro 3-pyrena; pyrenis cartilagineis facie planis. 
Semen cavitati conforme. Embryo in basi albuminis zquabilis cornei parvus; cotyledonibus late 
ovalibus planis radicula conica brevioribus et latioribus.—Frutices crassiramel, macrophylli; sti- 
pulis intrafoliaceis subyaginatis; floribus capitato-congestis, capitulis bracteis latissimis membra- 
naceis inciso-lobatis involucratis ad apicem caulis cymoso-glomeratis.—EHumachia, DC. Prodr. 
vol, iv. p. 4797 
This genus, which will probably prove identical with Lwmachia, DC., 1s confined to the New Hebrides, 
Viti, and Samoa, and well distinguished from Psychotria or Cephaélis by the remarkably large, funnel- 
shaped calyx which is fully developed before the tube of the corolla emerges from the tube of the calyx. 
Ewnachia carnea, DC, Prodr. vol. iv. p. 479 (Petesia carnea, Porst. Prodr. n. 51, et Teon. (ined.) t. 22 ; 
Gaertn. Fruct. vol. iii. p. 66. t. 192, non P. Browne et Linn. nee Hook. et Arn.) from the Tongan Islands 
(Forster! Nelson! U.S. Expl. Exped.!), has recently been described as Chasalia Amicorum by A. Gray in 
Proceed. Amer, Acad. vol. iv. A careful revision of Calycosia, Eumachia, and Ohasalia will be necessary 
before any definite opinion is arrived at about the possible identity or difference of these three genera. 
1. CG. petiolata, A. Gray, l.c.; foliis obovatis seu obovato-lanceolatis in petiolum attenuatis ; 
calyce breviter 5-lobo, lobis oblongis ; pyrenis dorso haud costatis,— Viti, locality not specified (U. 5. 
Expl. Exped.). 
2. GC. pubiflora, A. Gray, l.c.; foliis membranaceis elabris oblongo-lanceolatis acuminatis in 
petiolum attenuatis (4-6 poll. longis) ; cyma laxa trichotoma calycisque tubo viscoso-pubescentibus, 
limbo ecrateriformi extus puberulo; drupa turbinata, pyrenis chartaccis intus excavatis.—Namosi, 
Viti Levu (Milne!), Taviuni (Seemann! n, 214). 
Flowers white. 
3. C. Milnei, A. Gray, l.c.; glaberrima; foliis oblongis sublanceolatisve basi attenuatis longi- 
uscule petiolatis punctulatis (8-6 poll. longis); eyma diffusa, repetito-trichotoma; pedicellis graci- 
libus.—Nomen vernac. Vitiense, Kau wai” (i.e. Frutex aquaticus) —Ovalau, in woods (Seemann ! 
n, 213; Storck! n, 892), Also collected in Aneitum, New Hebrides (Milne !), 
XVI. Ixora, Linn. Gen. n. 131; Endl. Gen. n. 3161. Calyx tubo ovato, limbo brevi 4-5- 
dentato. Corolla hypocraterimorpha, tubo gracili eylindrico, fauce nuda v. barbata, limbi 4-5-par- 
titi laciniis tubo brevioribus, acutis v. obtusis, wstivatione convolutis, sub anthesi patentibus. Sta- 
mina 4-5, corolle fauci inserta, subexserta; filamenta brevissima v. subuulla; antherze oblong, 
erect. Ovarium 2-loculare, disco epigyno carnoso. Ovula in loculis solitaria, medio dissepimento 
peltatim inserta, amphitropa. Stylus simplex, vix exsertus; stigma 2-fidum, lacmiis patentibus 
v. revolutis. Bacca globosa, 2-pyrena, pyrenis chartaceis, dorso convexo leevibus, faéie concavis, 1- 
spermis, Semina cavitati conformia, umbilico ventrali. Embryo intra albumen cartilagimeum dor- 
salis, homotrope incurvus; cotyledonibus foliaceis, radicula elongata, infera.—Frutices v. arbusculee ; 
foliis oppositis, petiolatis, stipulis interpetiolaribus utrinque solitariis, e basi lata acuminatis v. 11 
aristam setaceam desinentibus, corymbis terminalibus, sxpius trichotomis, floribus coecineis roseis 
rariusve albidis, seepe fragrantibus.—Pavelfe sp, auct. 
Besides the species indigenous to Viti, we have in tropical Polynesia mora amplifolia, Gray, S. Samo- 
ensis, both from the Samoan Islands, and Z. fragrans, Gray; (Cephaélis fragrans, Hook. et Arn. Bot. Beech. 
t. 181), from Tonga (Nelson !), and Elizabeth Island (Lay and Collie}), all three belongimg to A. Gray's 
section Phylleilema, which 1s distinguished by a pair of bracteant leaves, forming a diphyllous involucre 
to a cluster of three or more sessile flowers. It is not improbable that S. Samoensis is identical with 
Leora triflora, Seem., (Pavelta triflora, DC. Prodr. vol, iv. p. 492. Coffea triflora, Forst. Prodr, n, 95. 
Chioccoa triflora, Spreng. Syst. vol. i. p. 756,) which was found in the Society Islands (Forster !). 
