126 FLORA VITIENSIS. 
loculicide aperta. Semina oo, angulares v. globosa, sepius obpyramidalia v. trihedra.—Herbee alsi- 
noidez, rarissime fruticulose ; foliis oppositis, mediante stipula l-pauciseta coadunatis, pedunculis 
axillaribus v. terminalibus, 1-2—co-floris, sepius elongatis gracilibus.— Karamyschewia, Fisch. et 
Meyer, teste A. Gray.—4A. Gray in Proceed. Amer. Acad. vol. iv. 
Besides the two species enumerated below, we have in tropical Polynesia O. fwtida, Forst. Prodr. n. 55 
et Icon. (ined.) t. 27, from the Tongan Islands (Forster !), Palmerston Island (Nelson 5, and Savage Island 
(W. Anderson !). i 
l. O. tenuifolia, Forst. Prodr. n. 57, et Icon. (ined.) t. 28 non Burm.; caule erecto 4-gono 
ramoso; foliis linearibus utrinque attenuatis; stipulis subciliatis subscariosis ; pedunculis axillaribus 
l-floris folio brevioribus, florentibus reflexis, fructiferis erectis.—Hedyotis tenuifolia, Smith in Rees’ 
Encycl. 17. n. 19.—Common on roadsides throughout Viti (Seemann! n. 231; Harvey!). Also 
collected in Tana (Forster! W. Anderson !). 
2. O. paniculata, Linn. Spec. 1667 ; glabra, erectiuscula, ramosa; ramis 4-gonis; foliis ovatis 
v. ovato-lanceolatis; stipulis parvis indivisis; racemis axillaribus terminalibusque ; pedicellis folio 
longioribus; corolla tubo gibbo fauce tenuiter villosa. DC. Prodr. vol. iv. p. 427.—O. debilis, Forst. 
Prodr. n. 56. DC. Prodr. l.c. p. 428. Hedyotis racemosa, Lam. Dict. vol. iii. p.276; HL 4-62. 
fig. 2,—Abundant in waste places throughout Viti (Seemann! n. 233 et 234). Also collected in the 
Tongan Islands (Forster! Nelson!), Fotuna (Milne!), and Aneitum and Eromanga, New Hebrides 
(M‘Gillivray !). 
VIII. Ophiorrhiza, Linn. Flor. Zeyl. 402; Endl. Gen. n. 3245. Calyx tubo brevi turbinato, 
limbo 5-fido, persistente. Corolla infundibuliformis, tubo amplo, calycis limbum superante, fauce 
barbata, limbi 5-fidi lobis brevibus ovatis obtusis. Stamina 5, inclusa v. exserta; filamenta brevia; 
antherze lanceolate, erecte. Ovarium 2-loculare, disco epigyno carnoso. Ovula in placentis cylin- 
dricis liberis, e basi loculorum erectis co, anatropa. Stylus inclusus v. exsertus; stigma 2-lobum. 
Capsula lata, compressa, 2-lobo-mitrzformis, limbo calycino coronata, 2-locularis, vertice rimula locu- 
licida dehiscens. Semina oo, minima, subhexagona. Embryo in axi albuminis dense carnosi ortho- 
tropus, cylindricus; radicula umbilico contigua.—Herbe suffrutices v. frutices; foliis oppositis 
v. verticillatis petiolatis membranaceis, sepius magnitudine inzqualibus, stipulis utrinque geminis, 
ovatis, subtriangularibus v. setaceis, deciduis v. persistentibus, pedunculis axillaribus et terminalibus 
solitariis 1-floris v. seepius apice cymosis, ramulis subumbellatis, floribus secus ramulos unilaterali- 
bus, sessilibus v. pedicellatis, corollis albis carneis v. purpurascentibus. 
We are at present aequainted with seven Polynesian species of this genus, four, discovered in Captain 
Cook's voyages, being indigenous to the Society Islands, and three to Viti. The species I have named 
O. Solandri differs from all the other Ophiorrhizas of this region by its peduncles being much longer than 
the leaves, its rugose leaves, and setaceous stipules. O. Nelsoni, Seem., is a large-leaved species, with 
ovate, fimbriate, and persistent stipules, and a many-flowered cyme, shorter than the leaves. O. Tahitensis, 
Seem., has stipules, which at the base are ovate, and suddenly terminate in a long setaceous apex; O. sub- 
umbellata, Forst., described and figured by Forster with alternate leaves, has, in Forster’s authentic speci- 
mens, opposite ones. O. lara and O. leptantha—if indeed they be two distinct species—have setaceous. 
stipules. On O. peploides I cannot find any stipules, unless some of the leaves of each whorl are regarded 
as such as those of Galium, ete. are. The four Tahitian species may be thus defined :— 
O. Nelsoni, (sp. nov.) Seem. in Herb. Mus. Brit.; suffruticosa; ramis junioribus petiolis eymisque 
ferrugineo-puberulis ; foliis oppositis petiolatis oblongis v. lanceolato-oblongis acuminatis in petiolum an- 
gustatis, supra viridibus, subtus discoloribus ; stipulis late ovatis fimbriatis persistentibus; eymis terminali- 
bus co-floris, folio brevioribus; floribus sessilibus v. breviter pedicellatis; bracteis filiformibus; corolla 
gracili bipollieari; genitalibus inelusis.—Tahiti (David Nelson !)—Petioles 1 inch long; blade of leaf 3-6 
inehes long, 1-2 inches broad. 
.. O. subumbellata, Forst. Prodr. n. 66, et Icon. (ined.) t. 37; fruticosa, glabra; foliis oppositis lanceolatis 
v. ovato-lanceolatis longe acuminatis basi aeutis v. obtusis, supra viridibus, subtus pallidioribus; stipulis 
