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Onoseris Willd., Sp. Pl. 3(3): 1702 (1803).

Seris Willd., Mag. Neuesten Entdeck. Gesammten Naturk. Ges. Naturf. Freunde Berlin 1: 139 (1807). Type: not designated.

Isotypus Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 8 (1818). Type: Isotypus onoserioides Kunth = Onoseris onoserioides (Kunth) B. L. Rob.

Hipposeris Cass., Dict. Sci. Nat. 33: 464 (1824). Type: not designated. Lectotype (selected by Sancho, 2004: 438): Onoseris salicifolia Kunth

Centroclinium D. Don, Trans. Linn. Soc. London 16(2): 254 (1830). Type: Centroclinium albicans D. Don = Onoseris albicans (D. Don) Ferreyra

Onoseris Willd. sect. Cladoseris Less., Linnaea 5: 341 (1830). Type: not designated. Lectotype (selected by Sancho, 2004: 438): Onoseris annua Less.

Onoseris Willd. sect. Hipposeris (Cass.) Less., Linnaea 5: 342 (1830).

Caloseris Benth., Pl. Hartweg. : 88 (1841). Type: Caloseris rupestris Benth. = Onoseris onoserioides (Kunth) B. L. Rob.

Cladoseris (Less.) Spach, Hist. Veg. Phan. 10: 35 (1841).

Cursonia Nutt., Trans. Amer. Philos. Soc. 7: 422 (1841). Type: Cursonia peruviana Nutt. = Onoseris odorata (D. Don) Hook. & Arn.

Schaetzellia Klotsch in Otto & Dietr. Allg. Gartenz. (Otto & Dietrich) 17: 82 (1849), non Sch.Bip. (1849), a nom. nud.(= Hinterhubera Sch.Bip. ex Wedd.). Type: Schaezellia deckeri Klotsch = Onoseris onoserioides (Kunth) B. L. Rob.

Rhodoseris Turcz., Bull. Soc. Imp. Naturalistes Moscou 24(2): 95, t. 2 (1851). Type: Rhodoseris conspicua Turcz. = Onoseris onoserioides (Kunth) B. L. Rob.

Onoseris Willd. sect. Isotypus (Kunth) Benth. & Hook.f., Gen. Pl. 2: 486 (1873).

Pereziopsis Coult., Bot. Gaz. 20: 52, t. 6 (1895). Type: Pereziopsis donnell-smithii Coult. = Onoseris donnell-smithii (Coult.) Ferreyra

Type: Atractylis purpurea L.f. = Onoseris purpurea (L.f.) S. F. Blake

References

Ferreyra, R. (1944). Revision del genero Onoseris. J. Arnold Arb. 25(3): 349395 & Lm. IIX.

Sancho, G. (2004). Phylogenetic relationships in the genus Onoseris (Asteraceae, Mutisieae) inferred from morphology. Syst. Bot. 29(2): 432á--447.

Key to species (modified from Ferreyra, 1944)

1. Petioles winged and with lobed margins 2

Petioles wingless, or if winged without lobes 3

2. (1) Phyllaries with acuminate apices and tomentose outside O. fraterna

Phyllaries with attenuate apices and glabrescent outside O. sagittata

3. (1) Plants glandular pubescent; stems terete; phyllary apices attenuate and flexuous, pubescent outside; upper leaf surface pubescent O. acerifolia

Plants lacking glandular hairs; stems angled; phyllary apices acute or acuminate, glabrous outside; upper leaf surface glabrescent 4

4. (3) Leaf base broad, lamina sagittate or ovate 5

Leaf base acute, lamina lanceolate or linear 6

5. (4) Capitula solitary; phyllaries broad, 22.5 mm wide, arachnoid pubescent outside, apices acuminate O. hastata

Inflorescence branched, with 28 capitula; phyllaries narrow, 1.42 mm wide, glabrescent and greyish outside, apices acute O. alata

6. (4) Pappus setae biseriate, outer series shorter and thinner; phyllary apices acuminate O. albicans

Pappus setae uniseriate; phyllary apices acute O. gnaphalioides

*Onoseris acerifolia Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 6 (1818). Type: Crescit in frigidis Provinci Bracamorensis in devexis Parami de Yamoca inter pagos Colazey et Chontali, alt. 1400 hex. K Floret Augusto. [Humboldt & Bonpland æ''no. 2568 [new line]____ 3567 in monte Llamoca]. Holotype: P-Bonpl.

Seris acerifolia (Kunth) Kuntze, Revis. Gen. Pl. 1: 364 (1891).

Bolivia (Santa Cruz), Peru.

Note: Ferreyra (1995: 650) suggested that this was endemic to the intermontane region of northern Peru, having earlier noted its occurrence in Bolivia (Ferreyra, 1944: 381). The minor differences between the Peruvian and Bolivian material (Steinbach 8200) he put down to differences in drying. Sancho (2004) recorded the species from northern Peru and central Bolivia, the Bolivian material the same studied by Ferreyra.

Onoseris adpressa [sic!] (Hook.) Less., Syn. Gen. Comp.: 120 (1832) = Onoseris albicans (D. Don) Ferreyra

*Onoseris alata Rusby, Descr. New Sp. S. Amer. Pl. : 163 (1920). Type: In dry gravelly and clayey soil at Coroico, Yungas, Bolivia, July 20, 1894, the flowers rose-colored. (M. Bang, No. 2365.) Holotype: NY (230813); isotypes: NY (230812), US (1404636).

Argentina, Bolivia (Cochabamba, La Paz, Santa Cruz).

*Onoseris albicans (D. Don) Ferreyra, J. Arnold Arb. 25: 389 (1944).

Centroclinium albicans D. Don, Trans. Linn. Soc. London 16(2): 254 (name)/256(description) (1830). Type: In Peruvi. Ruiz et Pavon. L. Holotype: originally in Aylmer Bourke Lambertâ''s herbarium, now in BM see Miller (1970: 538540).

Onoseris integrifolia Less., Linnaea 5: 343 (1830). Type: In Peruvia legit Dombey. (v. sp. 1. in h. Kth.) Holotype: B; isotype: RB. Note: The RB isotype is numbered 536.

Centroclinium reflexum Hook., Curtiss Bot. Mag. 58: t. 3114 (1831). Type: Among the many interesting plants raised last year (1830) from the Peruvian seeds liberally communicated to the Glasgow Botanic Garden by our valued friend, Mr. Cruckshanks, are two species of the family of Compositae, ....

Centroclinium appressum Hook., Curtiss Bot. Mag. 58: t. 3115 (1831). Type: This species, for which we are indebted to Mr. Cruckshanks, who brought the seeds from Peru, is undoubtedly, a perennial and frutescent plant. It blossomed for the first time, imperfectly, in December 1830, and again, with larger flowers, in June, 1831.

Onoseris reflexa (Hook.) Less., Syn. Gen. Comp.: 119 (1832).

Onoseris adpressa [sic!](Hook.) Less., Syn. Gen. Comp.: 120 (1832). Note: Lessing, in providing the new combination, provided an orthographic variant of Hookers epithet, which was also later taken up by Kuntze (1891), q.v.

Seris reflexa (Hook.) Kuntze, Revis. Gen. Pl. 1: 364 (1891).

Seris adpressa [sic!](Hook.) Kuntze, Revis. Gen. Pl. 1: 364 (1891). Note: The specific epithet is based on the orthographic variant provided by Lessing.

Seris integrifolia (Less.) Kuntze, Revis. Gen. Pl. 1: 364 (1891).

Onoseris warszewiczii Hieron., Bot. Jahrb. Syst. 19(1): 70 (1894). Types: Ecuador: crescit in lapidosis aridis, vulcanicis prope Cochapata, prov. Cuenca, alt. s. m. 20002500 m, ubi floret mense Octobri ([Lehmann] n. 4907). In Ecuador loco non indicato alt. s. m. 2600 m leg. cl. Warscewicz (n. 34). Syntypes: B. Isosyntype: Lehmann 4907, K.

Bolivia (La Paz), Ecuador, Peru.

*Onoseris fraterna S. F. Blake, J. Wash. Acad. Sci. 33: 368 (1943). Type: Bolivia: San Bartolom (near Calisaya), basin of R o Bopi, Prov. S. Yungas, Dept. La Paz, alt. 750-900 meters, 122 July, 1939, B. A. Krukoff 10266. Holotype: NA (154679-81); isotypes: GH, NY (230815), S.

Bolivia (La Paz).

*Onoseris gnaphalioides Muschl., Bot. Jahrb. Syst. 50(2/3), Beibl. 111: 94 (1913). Type: Peruvia: Caraz, in Departimento Ancachs, in formatione praesertim herbis composita aperta, 22002500 m s.m. (Weberbauer n. 3012. Florens 19. Maii 1903). Holotype: B.

Onoseris hyssopifolia Kunth [var.] b teretifolia Wedd., Chloris Andina 1: 10 (1855). Types (no distiction made between two varieties described in Chloris Andina planifolia and teretifolia): Hab. Equateur: environs de la ville dYbarra!, h. 2000 mtres (Humb. et Bonpl.). P rou: Cordillres du d partement de Cuzco! (Gay). Bolivie centrale: berges argileuses des montagnes de la province dAyopaya, une lvation de 3000 3500 mtres (Wedd., no 4140). Syntypes: P.

Bolivia (Cochabamba), Ecuador, Peru.

*Onoseris hastata Wedd., Chloris Andina 1: 9 (1855). Type: è''Hab. Bolivie mridionale: province de Tomina, au bord des pr cipices du mont Curi, sur les grs rouges, h. 28003200 m tres (Wedd., no 3763). Holotype: P; isotype: GH (fragments of holotype).

Seris hastata (Wedd.) Kuntze, Revis. Gen. Pl. 1: 364 (1891).

Argentina, Bolivia (Chuquisaca).

*Onoseris hyssopifolia Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 7 (1818). Note: Foster (1958) listed this taxon although Ferreyra (1944: 392) viewed O. hyssopifolia as an Ecuadorian endemic. The presence of O. hyssopifolia [var.] b teretifolia Wedd. as a synonym of O. gnaphalioides Muschl. may explain this.

Onoseris hyssopifolia Kunth [var.] b teretifolia Wedd., Chloris Andina 1: 10 (1855) = Onoseris gnaphalioides Muschl.

Onoseris reflexa (Hook.) Less., Syn. Gen. Comp.: 119 (1832) = Onoseris albicans (D. Don) Ferreyra

*Onoseris sagittata (Rusby) Rusby, Descr. New Sp. S. Amer. Pl. : 164 (1920).

Seris (Onoseris) sagittatus Rusby, Mem. Torrey Bot. Club 6(1): 69 (1896). Type: [Bolivia:] In dry gravelly or clayey soil, Turedon, vic. Cochabamba, 1891 ([Bang] 1139. Holotype: NY; isotypes: GH, US 2, Z (000053878).

Bolivia (Cochabamba).

Onoseris warszewiczii Hieron., Bot. Jahrb. Syst. 19(1): 70 (1894) = Onoseris albicans (D. Don) Ferreyra

Ooclinium clavatum Benth., Ann. Nat. Hist. 1(2): 108 (1839) = Chromolaena ivifolia (L.) R. M. King & H. Rob.

Ooclinium paucidentatum DC., Prodr. 5: 134 (1836) = Praxelis kleinioides (Kunth) Sch.Bip.

Ooclinium pedunculare DC., Prodr. 5: 134 (1836) = Praxelis kleinioides (Kunth) Sch.Bip.