200 FLORA VITIENSIS. 
Orpo LXXVI. MOLLUGINACEZE. 
I. Mollugo, Linn. Gen. n. 139; Endl. Gen. n. 5186. Calyx 5-partitus, persistens, laciniis 
muticis herbaceis v. albo-marginatis, zestivatione imbricatis. Corolla 0. Stamina 3-5, rarissime 
6-10, hypogyna, exteriora calycis laciniis alterna; filamenta brevia, subulata ; antherz 2-loculares, 
globose, minimz, longitudinaliter dehiscentes. Discus hypogynus 0. Ovarium liberum, ovato-3- 
gonum, 3-loculare. Ovula cc, loculorum angulo centrali funiculis brevibus inserta, amphitropa. 
Stigmata 3, lineari-teretiuscula v. subeuneata. Capsula tenuiter membranacea, seminibus torosa, ro- 
tundato-3-gona, 3-sulca, 3-locularis, loculicide 3-valvis, valvis medio septiferis, Semina oo, globu- 
losa, testa crustacea granulata v. costata, umbilico estrophiolato. Embryo annularis, albumen fa- 
rinaceum includens.—Herbe annuz, humiles, plerumque humifuse, dichotome ramos, in locis 
potissimum cultis obvize; foliis planis linearibus, lanceolatis v. obovato-spathulatis, integerrimis, ad 
nodos pseudo-verticilatis; stipulis obsoletis, fugacissimis; floribus per cymas axillares dichotomas 
racemiforme dispositis, v. in umbellulas ad nodos sessiles aut pedunculatas aggregatis.— Cerviana, 
Minuart. Monogr. p. 1. TricAlis, Haller, Hort. Gött., 26 part. 
1, M.stricta, Linn. Spec. p. 131; DC. Prodr. vol. i. p. 391; caule erecto anguloso; foliis 
subquaternis lanceolatis, ramis paniculatis nutantibus.— M. triphylla, Lour. Fl. Cochinch. p. 79, non 
Link.—Ovalau, in yam grounds (M'Gillivray ! Seemann! n. 230), Vanua Levu (U.S. Expl. Exped.). 
Common in China and many parts of tropical Asia. 
Orpo LXXVII. POLYGONACEZE. 
This Order is represented in tropical Polynesia by, 1, Rumes giganteus, Ait., a native of the Hawaiian 
Islands (Nelson! Menzies! Macrae!), where, according to Menzies, it attains twenty feet in height; 2, 
Muhlenbeckia australis, Meisn. (Polygonum Forsteri, Endl. in Ann. Wien. Mus. vol. i. p. 166; Coccoloba 
australis, Forst. Prodr. n. 176), of Norfolk Island (Bauer!); 3, Polygonum imberbe, Soland. in Forst. Prodr. 
v. 517, et Prim. Fl. Ins. Pacit. (ined.) p. 253 (P. Persicaria, Hook. et Arn. non Linn.), a native of Tahiti 
(Banks and Solander !), where it is vernaeularly named * Tamole" ; 4, P. attenuatum, R. Brown, Prodr. p. 
420, of Eromanga (M‘Gillivray !) and New Caledonia (M'Gillivray !), and thence extending to Endeavour 
River and the North Coast of New Holland (Banks! R. Brown!); 5, P. Cochinchinense, Meisn. (Lagunea 
Cochinchinensis, Lour. Fl. Cochinch., found in New Caledonia (M‘Gillivray !), Cochinchina (Loureiro! in 
Mus. Brit.), Java (Banks! Horsfield!), Port Jackson (R. Brown!), and S. China (Robertson! Fortune! 
Hance!), in my opinion perfectly distinct from the well-known garden annual, P. orientale, Linn.; and 
6, P. glabrum, Willd. 
I. Polygonum, Linn. Syst. Nat. ed, i. n. 640; Meisn. in DC. Prodr. vol. xiv. p. 83. Flores 
hermaphroditi. Calyx corollinus v. semiherbaceus, 5- rarissime 4—3-partitus, lobis subzequalibus inte- 
gerrimis 5-cunciatim imbricatis, omnibus conformibus planis vel exterioribus 2-3-carinatis concavis 
vel dorso alatis, patentibus vel conniventibus demum fructui adpressis parum auctis marcescentibus, 
Stamina 8, rarius 7—4, libera, imo calyci inserta, sepius cum squaimulis annuli perigyni (sæpe obso- 
Jetis) alternantia, calycis lobis alterna et, si iisdem plura adsunt, 2 vel 3 (seriei interioris) lobis 
interioribus et ovarii faciebus anteposita, filamentis subulatis persistentibus, antheris medio dorso 
affixis versatilibus ovalibus introrsis (vel seriei interioris extrorsis), polline sphzroideo. Ovarium 
liberum, compressum vel trigonum, ovulo basilari erecto. Styli 2 vel 3, liberi, filiformes v. plus 
minus connati, plerumque decidui, basin relinquentes, seepe brevissimi v. subnulli. Stigmata capi- 
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