Asteroidee.] — LXXXVIII. COMPOSITAE. : 279 
late campanulatum, bracteis co-seriatis imbricatis, exterioribus brevioribus.  Receptacu- 
lum planum, nudum v. minute setulosum.  Corolle 9 ligulatz, patentes, integro v. 
. minute 2-dentate; |j regulares, tubuloss, limbo parum ampliato breviter O-lobo. 
Amnthersm basi obtuse integre. Styli fl. O rami complanati, appendicibus brevibus 
angustis v. triangularibus.  Achsenia compressa, apice in rostrum breve v. elongatum 
attenuata, faciebus 1-nerviis v. enerviis. Pappi setze copioss», tenues, 1—2o-sériatee.— H erbze 
perennes, hispidze villoswe v. pubescentes. ^ Folia alterna, dentata v. integerrima. 
Capitula magna v. mediocria, ad apices ramorum solitaria, pedunculata. 
Species: examinatze 6, quarum 5 Austro-Americane a Bonaria usque ad Columbiam disperse, 
DC. Prod. v. 260.  AsreRorsis, Less. Syn. Comp. 188, DC. l.c,  PonorAPPus, Hook. et Arn. Comp. 
Bot. Mag. ii. 50, et Monurzia; Sch. Bip. Pl. Moritz. Columb. exs. n. 1821. Sexta Australis incola, 
Benth." Pl. Austral.iii. 493. Popocowa, Br. in App. Sturt. Exped. 17. lxiocnrawxs, F. Muell. 
et Sond. im Linnea, xxv. 460. Genus Asteri valde affine, differt tantum  aehwmiis rostratis. 
Habitus Vittadinie. . 
149. Laehnophyllum, Punge Rel. Lehm, 101.— Capitula. heterogama, radiata, floribus 
radii Q 2-20-seriatis discique OQ fertilibus, ^ Involucri bracteze oc-seriat?, angustis, 
numeross, interiores erectc margine scarioss, exteriores gradatim breviores apice $wpe 
squarrosee. ^ Receptaculum concavum,  alveolato-punctatum.  Corolle $9 ligulatz, 
anguste, revolutse; 0 regulares, tubulose, limbo superne ampliato apice D-dentato. 
Antherm basiexappendiculatz. Styli fl. rami oblongo-lanceolati, acuti, extus hirsuti. 
Achsenia compressa, puberula, sub pappo brevissime contracta, marginibus nerviformibus. 
Pappi setze tenues, scabree, simplici serie copiose, basi annulo persistente affixce, sigillatim ' 
deciduse.— Herbs annus, lana longa mollissima copiosa obductz. Folia alterna, inte- 
gerrima. Capitüla subsolitaria v. in paniculam irregularem foliatam disposita, terminalia, 
breviter pedunculata, tomentoso-villosa. | Corollze radii czerulece, disci flavae. 
Species 2, Asim medie v.occidentalis incole.  JWalp. Amm. v. 184. Boiss. Diagn. Ser. 2, iii. 17. 
Benth. in Hook. De. Pl. t. 1107. . Genus Erigeronti valde affine, sed involucro achmnio subrostrato 
et habitu satis distinctum videtur. 
150. Brachyactis, Ledeb. Fl. Ross. ii. 495.— Capitula lieterogama, radiata, floribus 
radii 9 1-co-seriatis discique  fertilibus.  Involucri bractez 2-3-seriate, anguste, 
exteriores v. plerseeque foliaceze. Receptaculum planum, nudum v. foveolatum. Corolla 
9 ligulatz, ligulis minimis v. rarius stylo suo longioribus; 5 regulares, tubulosse, limbo 
nune parum ampliato nunc anguste campanulato apice b-fido.  Antherse basi obtusiusculo. 
integre.  Stylifl. J rami angusti; complanati, appendicibus anguste lanceolatis terminati. 
Achzenia anguste obovata v. cuneata, plano-compressa, marginibus nerviformibus. .Pappi: 
setze sat copiosze, sub-2-seriatsz, exterioribus parum v. multo brevioribus, —Herbee annue. 
v. basi perennes, caulibus erectis ramosis v. simplicioribus ascendentibusque foliatis. 
Folia alterna, integra v. dentata. Capitula mediocria, breviter pedunculata, ad axillas 
solitaria v. in ràmulos breves conferta, panieculam angustam foliatam sepius efficientia, 
Corollz radii pallide ezerulescentes v. roses, disci flavse, ^ Achzenia villosa. i 
Species 6, Asize medi: et Sibirieze et Americze septentrionalis incolze. Lcdeb. To. Fl. Ross, t. 100 
(Erigeron). Benth. in Hook. Ic. Pl. t. 1106. , 
151. Erigeron, Linn. Gen. n. 901.—Capitula heterogama, radiata v. subdisciformia, 
foribus radii Q sepius 2—oc-seriatis fertilibus, disci ( fertilibus v. rarius sterilibus. 
Involuerum hemisphsricum v. campanulatum, bracteis sub-2-seriatis angustis sepius 
numerosis parum inzqualibus. Receptaculum planum v. vix convexum, nudum v. 
rarius foveolatum paleolisque brevissimis v. fimbrillis instructum, —Corolle 9 omnes v. 
exteriores ligulate, anguste v. angustissimz, interiores nonnunquam tubulossm fili- 
formes vix dentatz; D regulares, tubuloss, limbo parum ampliato, dentibus lobisve 
brevibus 5, rarius 4. Antherze basi obtusiuscuis integre. Styli fl. rami plus minus 
complanati, appendicibus triangularibus lanceolatis oblongis v. rarius linearibus acutis 
obtusisve, Achsenia compressa, ssepe angusta, marginibus ssepius nerviformibus, faciebus 
. 
