FLORA VITIENSIS. 113 
phroditi. Calycis tubus subcompressus, limbus obsoletus. Petala 5, ovato-triangularia, 1-nervia, 
libera, zestivatione valvata. Stamina 5; anthere ovate; pollinis granula plano-convexa. Ovarium 
2-loculare, loculis l-ovulatis. Drupa a latere plano-compressa, 2-pyrena, pyrenis evittatis. Carpo- 
phorum nullum. Semen carinato-compressum. Albumen :equabile.— Herb: perennes repentes v. 
suffrutices erecti, foliis stipulatis simplicibus integris v. varie divisis, floribus in umbellis capitatis 
v. spicis axillaribus dispositis, albidis, viridiusculis v. purpureo-maculatis, drupis viridiusculis pur- 
pureis v. maculatis.—Seem. in Journ. of Bot. 1863, p. 278.  Trisanthus, Lour. Fl. Coch. p. 219. 
Though the genus Hydrocotyle must have passed through the hands of innumerable botanists; its true 
position in the Natural System was not suspected util pointed out by me in the ‘Journal of Botany,’ 
1863, p. 278. Every one regarded it as a genuine Umbellifera, and yet how different is its look to all the 
most typical members of that order or suborder. Its fruit is didymous, it is true, but the two carpels 
do not separate, and there is no distinct carpophorum except in several annual Australian species, which 
bave been erroneously referred to this genus, such as H. tripartita, R. Brown; verticillata, Turez.; pili- 
Sera, 'Turez.; medicaginoides, Turcz.; diantha, F. Müll.; capillaris, F. Müll.; lobocarpa, F. Müll., ete.,—all 
belonging to Dimetopia and other genera not yet worked out. Jn tropical Polynesia only three genuine 
Hydrocotyles have as yet turned up; the widely-diffused and rather variable H. Asiatica ; in the Samoan 
Islands the allied H. leucocephala, Cham. et Schlecht., according to A. Gray,—a species I have not seen from 
any but Brazilian stations; and in the Sandwich Islands Z7. verticillata, Thunb. (interrupta, Mühl.). The 
latter will probably be found in other Polynesian groups, as it is one of the most widely-diffused species; 
we know it from the Cape of Good Hope (Wallich! Roberts! Lind!), Virginia (Mitchell!), Carolina 
(Beyrich!), Massachusetts (Greene !), California (Chamisso), Jamaica (Wright! Swartz !), and Gipps Land, 
Australia (F. Müller!) Ihold H. pleiantha, of Cesati (Linnea, vol. xi. p. 313), from Tuscany, identical 
with H. verticillata, as far as such an opinion can be of value, judging from the description only. If 
it should be confirmed, H. verticillata, Thunb., would range over Polynesia and all the continents except 
Asia. It is very near the much more local H. vulgaris, but I have never seen any transition, it being 
easily distinguished by its 11-nerved leaves, entirely glabrous petioles, and uniformly purplish fruit (not 
maculate or at the base emarginate) ` 
l. H. Asiatica, Linn. Spec. p. 234; Rich. Hydr. n. 15. f. 11; Wight, Icon. vol. ii. t. 565; 
glabra v. villosa; caule repente ; foliis orbiculato- v. cordato-reniformibus crenatis v. crenato-dentatis 
7-9-nerviis; umbellis capitatis paucifloris; involucro 2—5-phyllo; fructu orbiculari 4-costato.— 77. 
repanda, Pers. Ench. vol. i. p. 302; Rich. Hydr. n. 13. f. 14. H. ficarioides, Lam. Dict. vol. iii. p. 
153; Rich. Hydr. n. 12. f. 12. H. abbreviata, Rich. Hydr. n. 17. f. 19. H. lunata, Lam. Dict. 
vol. iii. p. 152. H. nummularioides, Rich. Hydr. n. 11. f. 9. H. hebecarpa, DC. Prodr. vol. iv. p. 
63. H. inequipes, DC. Prodr. vol. iv. p. 63. H. pallida, DC. Prodr. vol. iv. p. 63. H. brevipes, 
DC. Prodr. vol. iv. p. 63. H. lurida, lance in Walp. Aun. vol. ii. p. 690; Seem. Bot. Herald, 
* p.379. H. triflora, Ruiz et Pav. Fl. Per. vol. iii. p. 24. t. 245. f. 6. H. cordifolia, Hook. Icon. t. 
308. H. Brasiliensis, Scheidw. in Otto und Dietrich, Gartenz. vol. x. 286; Walp. Rep. vol. ii. p. 
383. H. reniformis et cordata, Walt. Fl. Car. p. 113. H. reniformis, Bose, Poir. Suppl. vol. iii. 
p.21. H. repanda, Spreng. Umb. n. 4. t. 2. f. 4. H. sp, e Nov. Caledon. Forst. Prodr. n. 512. 
Glyceria repanda, Nutt. Gen. Amer. vol. i. p. 177.  Trisanthus Cochinchinensis, Lour. Fl. Cochinch. 
p. 219 (ed. Willd.). Pes equinus, Rumph. Amb. vol. v. p. 455. t. 169. f. l.—Nomen vernac. 
Vitiense, * Totono."— Common all over Viti, in open, damp places or cultivated ground. Also 
found in the Tongan (Barclay!) and Samoan Islands (U. S. Expl. Exped.), and New Caledonia 
(Forster!). Common in Asia, viz. China (Herb. Mus. Brit.) ; Hongkong (Campion! Hance }) ; 
Java (Horsfield!); Philippine Islands (Cuming!) ; Cochinchina (Loureiro !) ; Coromandel coast 
(Roxburgh! Keenig!); Ceylon (Thwaites!): Africa, viz. Mauritius (Roxburgh !) ; i ma 
(Schimper! n. 13); Congo (Congo Expedition !) ; West tropical Africa (G. Don!); Angola (Wel- 
witsch ! n. 619, 620, 621, 622, 623) ; Cape of Good Hope (Masson ! Wallich ! Bunbury ): America, 
viz. Jamaica (F. Masson !) ; Chili (Bridges!) ; Rio, Brazil (Gardner! n. 52) : Australia, viz. Queens- 
land at Endeavour River (Sir J. Banks !). pre 
Used medicinally by the Vitians, but I have not been able to find out for what diseases. 
II. Nothopanax, Miq.. in Bonplandia, 1859, p. 139, et Fl. Herb. Ind. vol. i. pars i. p. 765. 
Q 
