140 FLORA VITIENSIS. 
“A true congener of M. Wrightiana, DCO., the type of the genus which stands in nearly the same rela- 
tion to Gymnanthemum that De Candolle’s section Eremosis does to Vernonia.” (A. Gray, l. c.) ; 
Schultz-Bipontinus wishes to restore the genus Strobocalyx, distinguished by its caudate anthers, in- 
corporating with it not only Vernonia, sect. v. of DC. Prodr. vol. v.p. 21, but also div. iv. Bojeriez, DC. 
II. Ageratum, Linn. Gen. n. 936; Endl. Gen. n. 2259. Capitulum oo-florum, homogamum, 
subglobosum. Involucri oo-phylli, imbricati; squame lineares, acuminate. Receptaculum nudum. 
Corollz tubulosæ, 5-fide. Stigmata elongata, cylindracea, obtusiuscula. Achenia subpentagona, 
basi attenuata. Pappus paleaceus, paleis 5 subserratis, acuminatis, aristatis, vel 10 pectinato-cilia- 
tis.—Herbz ut plurimum annuæ; foliis oppositis, petiolatis, ovatis, dentatis; capitulis corymbosis ; 
floribus ceruleis v. albis. 
l. A. conyzoides, Linn. Spec. 1175; DC. Prodr. vol. v. p. 108; caule ramoso annuo; foliis 
longiuscule petiolatis ovatis rhombeis cordatisve, pappi paleis 5 basi dilatatis serrulatis apice longe 
aristatis corollam subzquantibus. Schkuhr, Handb. t. 238; Hook. Exot. Fl. t. 15.—Nomina 
vernac. Vitiensia, “ Botebotekoro” et * Matamocemoce." (The latter name signifies to kill sleep, 
i. e. to keep awake, but I have not been able to find out why this name was given.)—Common 
throughout Viti (Seemann! n. 267; Sir E. Home!). Also collected in Tana (Forster! Barclay !), 
Aneitum (M‘Gillivray!), New Caledonia (M‘Gillivray !), and Sandwich Islands (Macrae! Nuttall! 
Barclay! Seemann!). Common throughout the tropics. 
III. Adenostemma, Forst. Char. Gen. 45; Endl. Gen. n. 2261. Capitulum co-florum, homo- 
gamum. Involucri campanulati, flores vix zquantis, demum reflexi squamæ 1-seriatze, foliaceze, ob- 
longe. Receptaculum planum, nudum, foveolatum. Corolle tubulosz, fauce vix ampliata, limbo 
5-lobo, infra lobos villoso. Stigmata longe exserta, apice dilatata, colorata. Achenia obovato-ob- 
longa, subangulata. Pappi ariste 3 v. 5, breves, rigide, glandula globosa v. clavata termi- 
natz.— Herb: glanduloso-pilosz v. glabriuscule ; foliis oppositis, petiolatis, ovatis v. rhomboideo- 
9- plinerviis, dentatis, capitulis pedunculatis, corymbocso-paniculatis, floribus albis.—ZLavenia, Swartz, 
Prodr. 112. 
1. A. viscosum, Forst. Char. Gen. n. 45; Prodr. n. 284, et Icon. (ined.) t. 207; caule erecto 
pubescente aut glabro; foliis petiolatis oblongo-lanceolatis basi cuneatis grosse serratis; capitulis 
laxe paniculatis, pedicellis capitulo vix duplo longioribus; acheniis papuloso-scabris. DC. Prodr. 
vol. v. p. 111.—Lavenia erecta, Gaud. in Bot. Freyc. 470. excl. syn. Lavenia glutinosa, Sol. Prim. 
Fl. Ins. Pacif. (ined.) p. 294 et in Parkins. Drawings of Tahit. Plants (ined.) t. 77.—Common 
throughout Viti (Seemann! n. 262). Also collected in the Society Islands (Forster! Banks and 
Solander!) New South Wales, and the East Indian Archipelago. 
IV. Erigeron, Linn. Gen. n. 951. excl. sp.; Endl. Gen. n. 2382. Capitulum oo-florum, hete- 
rogamum, floribus radii cc-seriatis, ligulatis, femineis, disci tubulosis, nune omnibus hermaphroditis; 
nunc exterioribus femineis, centralibus hermaphroditis v. masculis. Involucri oo-seriati squamze 
lineares, imbricate. Receptaculum nudum, foveolato-punctatum. Corolle radii ligulate, ligula - 
lineari, disci tubulosz, limbo truncato-integerrimo v. sub-5-dentato. Antherz ecaudatz. Achenia 
in disco et radio conformia, compressa, erostria. Pappus conformis, l-serialis, pilosus, scaber.— 
Herbz v. rarius frutices; foliis alternis, integerrimis, dentatis v. lobatis, capitulis subhemisphzericis, 
disco flavo, radio albo, ezeruleo aut purpurascente rarissime ochroleuco. —— 
l. E. albidum, A. Gray in Bonplandia, vol. ix. p. 36; herbacea, erecta, caule striato villoso v. 
glabriusculo ; foliis essilibus lineari-lanceolatis v. lanceolatis acuminatis integerrimis v. apice remote 
et grosse serratis canescenti-pubescentibus; panicula diffusa, parce foliosa, ampla, capitulis pedicel- 
Jatis, invol. squamis 1—2.seriatis linearibus, acuminatis dorso pubescentibus v. glabris.— Conyza albida, 
Willd. ex Spreng. Syst. vol. iii. p. 514. C. erigeroides, DC. Prodr. vol. v. p. 978. C. floribunda, 
* 
