140 FLORA VITIENSIS. 
“A true congener of AL. Wrightiana, DC., the type of the genus which stands by Aaa the same rela- 
tion to Gymnanthemum that De Candolle’s section Eremoss does to Vernonia. (A. Gray, l. c.) fl 
Schultz-Bipontinus wishes to restore the genus Strobocalyr, distinguished by its caudate anthers, in- 
corporating with it not only Vernonia, sect. vy. of DC. Prodr. vol. v. p. 21, but also div, iv, Bajeriee, DC. 
Il. Ageratum, Linn. Gen. n, 936; Endl. Gen. n, 2259, Capitulum oo-florum, homogamum, 
subglobosam. Involucri so-phylli, imbricati; squamz lineares, acuminate. Receptaculum nudum, 
Corolle tubulose, 5-fide. Stigmata elongata, cylindracea, obtusiuscula. Achenia subpentagona, 
basi attenuata, Pappus paleaceus, palcis 5 subserratis, acuminatis, aristatis, vel 10 pectinato-cilia- 
tis. —Herbe ut plurimum annuz; foliis oppositis, petiolatis, ovatis, dentatis; capituhs corymbosis ; 
floribus czeruleis y. albis, 
l. A. conyzoides, Linn. Spec. 1175; DC. Predr, vol. v. p. 108; caule ramoso annuno; foliis 
Jongiuscule petiolatis ovatis rhombeis cordatisve, pappi paleis 5 basi dilatatis serrulatis apice longe 
aristatis corollam subsequantibus, Schkuhr, Handb. t. 288; Hook. Exot. Fl. t. 15.—Nomina 
vernac. Vitiensia, ‘ Botebotekoro” et ‘‘ Matamocemoce.”’ (The latter name signilies to kill sleep, 
z.¢. to keep awake, but I have not been able to find out why this name was given.)—Common 
thronghout Viti (Seemann! n, 267; Sir HE. Home!), Also collected in Tana (Forster! Barelay |), 
Ancitum (M‘Gillivray !), New Caledonia (M‘Gillivray !), and Sandwich Islands (Macrae! Nuttall! 
Barclay! Seemann!), Common throughout the tropics. 
III. Adenostemma, Vorst. Char. Gen. 45; Endl, Gen. n. 2261. Capitulum ce-floram, homo- 
gamum. Involucri campanulati, ores vix wequantis, demum reflexi squamz 1-seriatwz, foliaces, ob- 
long. Receptaculum planum, nndum, foveolatum. Corolle tubulose, fauce vix ampliata, limbo 
A-lobo, infra lobos villoso, Stigmata longe exserta, apice dilatata, colorata. Achenia obovato-ob- 
longa, subangnlata. Pappi ariste 3 v. 5, breves, rigidz, glandula glohosa vy. clavata termi- 
nate.—Herbe glanduloso-pilose v. glabriusculz ; foliis oppositis, petiolatis, ovatis v. rhomboideo- 
3-plinerviis, dentatis, capitulis pedunculatis, corymboso-paniculatis, floribus albis—Lavenia, Swartz, 
Prodr, 112, 
1, A. viscosum, Porst. Char. Gen. n. 45; Prodr, n. 284, et Icon. (ined.) t. 207; caule erceto 
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, Gand. in Bot, Freye. 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 Hast Indian Archipelago, 
IV, Erigeron, Linn, Gen. n. 951. excl. sp.; Endl, Gen, n, 2832. Capitulum ce-florum, hete- 
rogamum, floribus radii co-seriatis, ligulatis, femineis, disci tubulosis, nune omnibus hermaphroditiss 
nune exteriorihbus femineis, centralibus hermaphroditis y. masculis. Inyolucri oo-seriati squame 
Imeares, imbricate. Receptaculum nudum, foveolato-punctatum, Corolle radii ligulate, ligula 
lineari, disci tubulosz, limbo truncato-integerrimo v. sub-5-dentato. Antherse ecaudate. Achenia 
in disco et radio conformia, compressa, erostria, 
Herbze v. rarius frutices; foliis alternis, integ 
disco flavo, radio albo, cxeruleo ant purpur 
Pappus conformis, 1-serialis, pilosus, scaber.— 
errimis, dentatis vy, lobatis, capitulis subhemisphvericis, 
asccute rarissime ochroleuco, : 
1. E. albidum, \. Gray in Bonplandia, vol, ix, p. 86; herbacea, erecta, caule striato yilloso v. 
glabrivsculo s foltis ressilibus lineari-lanceolatis vy, lanceolatis acuminatis integerrimis y, apice remote 
et groase serratis canescenti-pubescentibus ; panicula diffusa, parce foliosa, ampla, capitulis pedicel- 
léns, tnvol. squamis 1-2-seriatis linearibus, acuminatis dorso pubescentibus v. glabris.— Conyza albida, 
Willd. ex Spreng, Syst. vol. iii. p. 514. C. erigeroides, DC, Prodv, vol. y. p. 378. (. floribunda, 
