Results 181 to 190 of about 1,068 (211)

POLYPLOIDY IN MONTANOA CERV. (COMPOSITAE, HELIANTHEAE)

TAXON, 1980
SummaryPolyploidy is reported for the first time for Montanoa Cerv., in which x = 19; we here report speciesat the 6x, 8x, and 12x levels. The 12x count (n = 110‐120) was originally reported, owing to a printing error, as Melanthera aspera (Jacq.) Rendl., and is significant as it is the highest reported number in Compositae.
Funk, Vicki Ann, Raven, Peter H.
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A Revision of Moonia (Compositae, Heliantheae, Coreopsidinae)

Brittonia, 1975
The genusMoonia of India and Ceylon, traditionally placed in the subtribe Melampodiinae, is shown to have closer affinities withDahlia andHidalgoa of the subtribe Coreopsidinae. Several morphologically heterogeneous taxa are excluded fromMoonia, and the remaining species,M. heterophylla, is described and illustrated.
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A Systematic Study of the Genus Tetrachyron (Asteraceae: Heliantheae)

Systematic Botany, 1979
Tetrachyron is a genus of five species restricted to eastern Mexico and northern Guatemala. Most previous treatments regard these species as members of various subgenera in the large polymorphic genus Calea. As a result of the various systematic techniques utilized in this study, the genus Tetrachyron is reestablished; it includes the subgenera ...
Lowell E. Urbatsch, James R. Wussow
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Revision of Viguiera sect. Maculatae (Asteraceae: Heliantheae)

Systematic Botany, 1988
Revision of Viguiera sect. Maculatae (formerly series Maculatae) results in recognition of 14 taxa, including 13 species and one subspecies. Of these, V. guerrerana, V. mirandae, V. sharpii, V. splendens, and V. eriophora subsp. poblana are newly described.
Jose L. Panero, Edward E. Schilling
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A CYTOTAXOXOMIC SURVEY OF MELAMPODIUM (COMPOSITAE‐HELIANTHEAE)

American Journal of Botany, 1962
Turner, B. L.. and R. M. King. (U. Texas, Austin.) A cytotaxonomic survey of Melampodium (Compositae‐Heliantheae). Amer. Jour. Bot. 49(3): 233–26. Illus. 1962.—Chromosome counts are reported for individuals from 89 populations of Melampodium representing 26 species The genus is multibasic with x = 9, 10, 11, 12, 16 and 23.
B. L. Turner, R. M. King
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A Systematic Study of the Genus Balduina (Compositae, Heliantheae)

Brittonia, 1975
The genusBalduina, endemic to the southeastern United States as interpreted here, includes a complex of three species:B. atropurpurea Harper,B. angustifolia (Pursh) Robinson, andB. uniflora Nutt. The first two species have a chromosome number ofn = 18 andB. uniflora hasn = 36.
Samuel B. Jones, Earl S. Parker
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Systematics of Salmea DC. (Compositae: Heliantheae)

Systematic Botany, 1991
The genus Salmea as treated here consists of 10 species, divided among three sections. In sect. Salmea, S. scandens is found from Mexico through Central America to Argentina and Brazil and on the islands of the Caribbean. It is closely related to S. orthocephala of Central America and slightly more distantly related to the species pair, S. oligocephala
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Blainvillea (Asteraceae-Heliantheae) is absent from China

Phytotaxa, 2017
Blainvillea Cassini (1823: 493) (Asteraceae-Heliantheae), as recently circumscribed by Orchard (2012, 2015), is a pantropical genus comprising four species. Blainvillea calcicola Orchard (2012: 658) and B. cunninghamii (Candolle 1836: 540) Orchard (2012: 660) are endemic to Australia.
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Cladistics of the Subtribe Ambrosiinae (Asteraceae: Heliantheae)

Systematic Botany, 1995
The interrelationships within the Heliantheae-Ambrosiinae are investigated using cladistic analysis of morphological and cytological data. Twenty-eight species sampled from all genera of the Ambrosiinae are used as terminal taxa. The result reveals that Iva s.l. is polyphyletic. In order to make the different parts of Iva s.l.
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An Account of Bidens (Compositae: Heliantheae) for Africa

Kew Bulletin, 1993
Monographs of Coreopsis L. and Bidens L. were published by E. E. Sherff in 1936 and 1937, respectively. Characters and character states used since the time of Linnaeus (1753) to differentiate between these taxa were evaluated in these works. Difficulties in the assignment of taxa from South America and the Pacific Islands to one or the other genus were
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