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Acanthospermum Schrank, Pl. Rar. Horti Acad. Monac. 2: 53 (1819)[Apr.ÐMay
1820], nom. cons.
Centrospermum
Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 212 (1818). Type: Centrospermum xanthioides Kunth, nom. illegit. = Acanthospermum australe (Loefl.) Kuntze
Orcya
Vell., Fl. Flum. : 344 (1825)[7 Sept. - 28 Nov. 1829]. Type: Orcya adhaerescens Vell.
= Acanthospermum australe (Loefl.) Kuntze
Echinodium
Poir. ex Cass., Dict. Sci.
Nat. 59: 235 (1829), nom. nud. pro
syn., non Juratzka (1866).
Type: Acanthospermum brasilum Schrank = Acanthospermum australe (Loefl.) Kuntze
References
Blake, S. F. (1921). Revision of the
genus Acanthospermum.
Contr. U.S. Natl. Herb. 20: 383Ð392.
Pruski, J. F. (1997). (1324) Proposal to conserve the name Acanthospermum against Centrospermum (Compositae, Heliantheae).
TAXON 46(4): 805Ð806.
Stuessy, T. F. (1970). The
genus Acanthospermum
(CompositaeÐHeliantheaeÐMelampodinae):
taxonomic changes and generic affinities. Rhodora 72:
106Ð109.
Key to species
Plants
erect; capitula ± sessile; fruit obcompressed,
wedge-shaped-cuneate in outline, with two large terminal
prickles; leaves obovate to obovate-oblong,
cuneate A. hispidum
Plants with prostrate stems; capitula mostly pedicellate; fruit oblong-fusiform; leaves obovate to broadly obovate or subcircular A. australe
*Acanthospermum australe (Loefl.) Kuntze, Revis. Gen. Pl. 1: 303 (1891).
Melampodium australe Loefl., Iter Hisp. : 268 (1758). Type:
Ô... observatae in itinerere
a Cumana ...... ad fluvium Orinoco, per Barcellonam & Las Missiones
de Piritu ..... Feb. 1755.Õ (LINN)
Centrospermum xanthoides Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. Pl. 4 (ed. folio): 213 (1818). Type: ÔCrescit inter Cumana et Bordones.
(Nova Andalusia.) K
Floret Augusto.Õ, nom. illegit. Ð according
to the Index Nominum
Genericorum database, but without supporting
comment!
Acanthospermum brasilum Schrank,
Pl. Rar. Hort. Acad. Monac.
2: 53. (1819)[Apr.ÐMay 1820]. Type: ÔPatria Brasilia,
unde D. Martius semina misitÕ. Holotype: M.
Orcya adhaerescens Vell.,
Fl. Flum. : 345 (1825)[7
Sept. - 28 Nov. 1829]. [Ic. Fl. Flum. 8: tab. 83 (1831).] Type: [Brazil:] ÔUdique habitat praecipue silvis excultis.Õ Location of extant original material unknown.
Echinodium prostratum Poit.
ex Cass., in Cass. Dict. Sci. Nat.
59: 245 (1829), nom nud. [Note: Cassini
provided the following comment: ÔNous avons fait cette description gŽnŽrique [of Centrospermum!] sur un Žchantillon
sec, en mauvais Žtat, receulli dans la Guiane franoise par M. Poiteau, et
qui se trouve dans lÕherbier de M. Gay ou il etoit etiquete
Echinodium prostratum Poit.Õ This specimen is in K!]
Acanthospermum xanthoides (Kunth)
DC. [var.] a
obtusifolium
DC., Prodr. 5: 522 (1836). Types: ÔÐ in Cuman‰?
(Loefl.),
in Brasiliae prov. Rio-Grande (h. Mus. Bras. n.
1069). Melampodium australe Loefl.
itin. 268. Linn. sp. 1303. (v.s.
ex Forsyth sine loci design.)Õ Syntypes: G-DC. Syntype: Ôh. Mus. Bras. 1069Õ, P.
Acanthospermum xanthoides (Kunth)
DC. [var.] b
acutifolium DC., Prodr. 5: 522 (1836), nom. illegit. pro Centrospermum xanthioides Kunth
Acanthospermum hirsutum DC. Prodr. 5: 522. (1836),
nom. illegit. superf. pro Acanthospermum brasilum Schrank
Argentina, Bolivia (La Paz, Pando, Santa Cruz), Brazil, Colombia, Guiana, Paraguay, Venezuela, West Indies. Widespread as an introduced weed in the Old World.
Natiu, Tayecu’, Tepecur’, Yerba de la oveja (Freie
et al., 2006).
Acanthospermum brasilum
Schrank, Pl. Rar.
Hort. Acad. Monac. 2: 53. (1819)[Apr.ÐMay 1820] =
Acanthospermum australe (Loefl.) Kuntze
Acanthospermum hirsutum DC., Prodr. 5: 522 (1836), nom. superf. = Acanthospermum australe (Leofl.) Kuntze
*Acanthospermum hispidum DC., Prodr. 5: 522 (1836). Type: ÔÂ in Brasiliae sabulosis maritimis circa Bahiam legit cl. Salzman. [21] .... (v.s. comm. ˆ cl. Salzm.)Õ. Holotype: G-DC; isotype: K.
Argentina, Bolivia (Santa Cruz, Tarija), Brazil, north to USA. Widely distributed in the palaeotropics.
Carretilla de oveja, Cuajerilla,
Guajerilla, Rodajillo, Torito, Yerba de la oveja (Freire
et al., 2006).
Acanthospermum xanthoides
(Kunth) DC. [var.] b acutifolium DC., Prodr. 5: 522 (1836), nom. illegit. = Acanthospermum
australe (Loefl.) Kuntze
Acanthospermum xanthoides (Kunth) DC. [var.] a obtusifolium DC., Prodr. 5: 522 (1836) = Acanthospermum australe (Loefl.) Kuntze
