Darwiniana 

About: Darwiniana is an academic journal published by Museo Botánico Córdoba. The journal publishes majorly in the area(s): Biology & Genus. It has an ISSN identifier of 0011-6793. It is also open access. Over the lifetime, 732 publications have been published receiving 5638 citations.

Clasificación infragenérica de las especies argentinas de baccharis (asteraceae, astereae)

Abstract: Giuliano, D. A. 2001. Infrageneric classification of the Argentine species of Baccharis (Asteraceae, Astereae). Darwiniana 39(1-2): 131-154. The genus Baccharis is represented in Argentina by 96 species, the infrageneric classification of which is presented in this paper. A succinct summary of the history of Baccharis infrageneric taxonomy is provided. The 96 Argentine species are placed into 15 sections: Angustifoliae, Aristidentes, Baccharis, Caulopterae, Cuneifoliae, Cylindricae, Discolores, Molinae, Nitidae, Oblongifoliae, Paniculatae, Pedicellatae, Pseudobaccharis, Subliguliflorae -sect. nov.- and Trinervatae. These sections are briefly described, and a key to differentiate them is given. Twelve out of the 96 species are positioned into the infrageneric classification system for the first time, whereas 42 species which had been previously classified are here relocated to other sections. Twenty-two generic, subgeneric, sectional and subsectional names are considered as new synonyms. The relationships among the sections are discussed.

Las especies argentinas del género Passiflora (Passifloraceae)

Abstract: This treatment comprises a taxonomic revision of the 19 species of the genus Passiflora present in Argentina, grouped in four different subgenera. Morphological characters used in the study are analyzed, including vegetative and reproductive ones. A key to recognize all species, as well as descriptions, synonymy, illustrations, geographical distribution and ecological observations are given.

Estudios cariologicos en compositae. I

Abstract: Meiotie and/or mitotic chromosome numbers were determined and observations on meiotic behavior were made in 104 accessions belonging to 75 species and 32 genera distributed in 10 tribes of the Asteraceae. One genus ( Picrosia ), 21 species and 2 varietes are investigated cytologically for the first time. These are as follows, tribe Mutisieae: Chaptalia graminifolia (Dus.) Cabrera and Ch. pilloselloides (Vahl.) Baker (2n = ca. 48); tribe Cichorieae: Picrosia longifolia Don (n = 7 II); tribe Astereae: Baccharis effusa Griseb. (n = 9 II), B. flabellata Hook. et Arn. (n = 9 II), B. flabellata var. argentina (Heer.) Ariza (n = 9 II), B. rhexioides H. B. K. (n = 9 II), B. tucumanensis Hook. et Arn. (n = 9 II), Grindelia buphthalmoides DC. (2n = 12); tribe Senecioneae: Senecio flagellisectus Griseb. (n = 20 II), S. grisebachii Baker var. grisebachii Baker (n = 20 II), S. l orentzii Griseb. (n = 20 II); tribe Heliantheae: Calea clematidea Baker (n = 19 II), Cosmos marginatus Klatt (n = 24 II), Spilanthes alpestris Griseb. (n = ca. 14 II), Tridax paraguayensis Kuntze (n = 18 II); tribe Eupatorieae: Eupatorium buniifolium Hook. et Arn. (2n = 20 + 2B), E. lorentzii Hieron. (n = ca. 17 II), E. grosidentatum Hieron. (n = 10 II), Ophryosporus macrodon Griseb. (n = 10 II), Pterocaulon lanatum O. K. (n = 11 II), Stevia aff. effusa Hieron. (n = 11 II) and S. maimarensis (Hieron.) Cabrera (n = 11 II). Different chromosome numbers to those reported previously in the literature were found for Aspilia montevidensis (Spreng.) Kuntze var. setosa (Griseb.) Cabrera (n = 11 II), Liabum polymnoides R. E. Fries (n = 15 II) and Eupatorium saltense Hieron. (n = ca. 26 II) The karyotypes of Hieracium tandilense Sleumer, Baccharis effusa Griseb., B. spicata (Lam.) Baillon, Eupatorium buniifolium Hook. et Arn. and Stevia satureaiefolia (Lam.) Sehultz-Bip. are described for the first time. The significance of some of the results in relation to taxonomical and evolutionary problems is discussed.