Peter C. Boyce. 2008. A monograph of the genus Biarum. Curtis's Botanical Magazine 25(1): 1 - 119. ISSN 1355-4905.
The full version of Peter Boyce's monograph of Biarum is finally published, with eleven spectacular paintings by Ann Farrer, 20 line drawings by Christine Grey-Wilson, colour photographs from various contributors, dot maps of all species; all species are illustrated except Biarum mendax P.C. Boyce. Most of the text, including the descriptions and keys, was previously published in P.C. Boyce. 2006. A taxoomic revision of Biarum (Araceae). Aroideana 29: 2 - 36.
This beautiful revision is a worthy sequel to Peter Boyce's monograph of Arum (P. Boyce.1993. The genus Arum. Kew Magazine Monograph, Royal Botanic Gardens Kew. ISBN 0-11-250085-4)
This review was published earlier in the "Fossils" folder and has been copied here to bring together reviews of recent aroid literature.
A paper on fossil aroids was published recently:-
J. Bogner, K.R. Johnson, Z. Kvacek, G.R. Upchurch (2007). New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America. Zitteliana A47: 133-147. Reprint requests should be directed to kvacek@natur.cuni.cz
Three new species are described from the leaves: Orontium wolfei (Eocene), Orontium mackii (Cretaceous-Maastrichtian), Symplocarpus hoffmaniae (Cretaceous-Maastrichtian and Palaeocene); a new combination Lysichiton austriacus is made (Cretaceous-Campanian).
These are all new additions to the Subfamily Orontioideae. This paper, as with previous papers on leaf fossils of aroids, underlines the need to develop new comparative studies of the leaf venation patterns of extant genera of aroids, so that quantitative comparisons with leaf fossils can be made in the future.
Fossil aroids have become a really active and exciting research area in the past 15 years. It seems to me that the fossil taxa should be incorporated into the main species sequence,particularly given their importance for dating phylogenetic studies.
The recent paper by Bogner and Petersen on the chromosome numbers of the Araceae (J. Bogner & G. Petersen 2007. The chromosome numbers of the aroid genera. Aroideana 30:: 82-90) includes a table of chromosome numbers which embodies an updated classification of the genera of the Araceae.
Mayo, Bogner & Boyce (1997, 1998) published two versions of a formal classification of Araceae, the former having the most detailed descriptions (Genera of Araceae, 1997) and illustrations. However, this classification did not include the Lemnaceae, which subsequent molecular systematic studies have shown belongs within the aroids.
R. C. Keating (2003, "2002", IX. Acoraceae and Araceae. In Gregory, M. & Cutler D.F., Anatomy of the Monocotyledons, Clarendon Press, Oxford, ISBN 0198545355) presented a more recent classification, based on reconciling his vegetative anatomical data with the molecular phylogeny of French et al. (J.C. French, M. Chung, Y. Hur. 1995. Chloroplast DNA phylogeny of the Ariflorae. pp. 255-275. In: Rudall, P.J., Cribb, P.J., Cutler, D.F., Humphries, C.J. (eds.), Monocotyledons: systematics and evolution, vol. 1, Royal Botanic Gardens, Kew). This classification includes the Lemnaceae as subfamily Lemnoideae of the Araceae and proposes a new subfamily Schismatoglottidoideae and the resurrection of subfamily Philodendroideae.
Bogner & Petersen (2007) basically follow Mayo, Bogner & Boyce (1997) but include subfamily Lemnoideae and subfamily Zamioculcadoideae (first proposed by Bogner & Hesse, 2005. Zamioculcadoideae, a new subfamily of Araceae. Aroideana 28: 3-20), the new genera published since 1997, i.e. Incarum and Croatiella both of E.G. Goncalves, and reduce to synonymy the genera Lazarum, Hottarum and Heteroaridarum.
It is useful to know that this paper provides users with the most recent update of the arrangement of currently recognized genera of the family.
The most recent doctoral thesis presented in Brazil refers to native species citotaxonomy of Anthurium (Araceae) of atlantic forest in Brazil.
The species A. parasiticum, A. comtum, A. lucioi, A. gaudichaudianum, and those belonging to the "harrisii" complex (A. urvilleanum, A. intermedium and A. harrisii were collected in the Brazilian states of Rio de Janeiro, Espírito Santo, São Paulo, Minas Gerais and Rio Grande do Sul.
A total of 30 sets os samples were collected, of which 30% were 2n=2x=30; 66,7% presented 2n=4x=60; and only 3,3% were hexaploid, 2n=6x=90.
Peter Boyce: A Monograph of Biarum
Peter C. Boyce. 2008. A monograph of the genus Biarum. Curtis's Botanical Magazine 25(1): 1 - 119. ISSN 1355-4905.
The full version of Peter Boyce's monograph of Biarum is finally published, with eleven spectacular paintings by Ann Farrer, 20 line drawings by Christine Grey-Wilson, colour photographs from various contributors, dot maps of all species; all species are illustrated except Biarum mendax P.C. Boyce. Most of the text, including the descriptions and keys, was previously published in P.C. Boyce. 2006. A taxoomic revision of Biarum (Araceae). Aroideana 29: 2 - 36.
This beautiful revision is a worthy sequel to Peter Boyce's monograph of Arum (P. Boyce.1993. The genus Arum. Kew Magazine Monograph, Royal Botanic Gardens Kew. ISBN 0-11-250085-4)
New paper by Josef Bogner et al
This review was published earlier in the "Fossils" folder and has been copied here to bring together reviews of recent aroid literature.
A paper on fossil aroids was published recently:-
J. Bogner, K.R. Johnson, Z. Kvacek, G.R. Upchurch (2007). New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America. Zitteliana A47: 133-147. Reprint requests should be directed to kvacek@natur.cuni.cz
Three new species are described from the leaves: Orontium wolfei (Eocene), Orontium mackii (Cretaceous-Maastrichtian), Symplocarpus hoffmaniae (Cretaceous-Maastrichtian and Palaeocene); a new combination Lysichiton austriacus is made (Cretaceous-Campanian).
These are all new additions to the Subfamily Orontioideae. This paper, as with previous papers on leaf fossils of aroids, underlines the need to develop new comparative studies of the leaf venation patterns of extant genera of aroids, so that quantitative comparisons with leaf fossils can be made in the future.
Fossil aroids have become a really active and exciting research area in the past 15 years. It seems to me that the fossil taxa should be incorporated into the main species sequence,particularly given their importance for dating phylogenetic studies.
Updated classification of Araceae
The recent paper by Bogner and Petersen on the chromosome numbers of the Araceae (J. Bogner & G. Petersen 2007. The chromosome numbers of the aroid genera. Aroideana 30:: 82-90) includes a table of chromosome numbers which embodies an updated classification of the genera of the Araceae.
Mayo, Bogner & Boyce (1997, 1998) published two versions of a formal classification of Araceae, the former having the most detailed descriptions (Genera of Araceae, 1997) and illustrations. However, this classification did not include the Lemnaceae, which subsequent molecular systematic studies have shown belongs within the aroids.
R. C. Keating (2003, "2002", IX. Acoraceae and Araceae. In Gregory, M. & Cutler D.F., Anatomy of the Monocotyledons, Clarendon Press, Oxford, ISBN 0198545355) presented a more recent classification, based on reconciling his vegetative anatomical data with the molecular phylogeny of French et al. (J.C. French, M. Chung, Y. Hur. 1995. Chloroplast DNA phylogeny of the Ariflorae. pp. 255-275. In: Rudall, P.J., Cribb, P.J., Cutler, D.F., Humphries, C.J. (eds.), Monocotyledons: systematics and evolution, vol. 1, Royal Botanic Gardens, Kew). This classification includes the Lemnaceae as subfamily Lemnoideae of the Araceae and proposes a new subfamily Schismatoglottidoideae and the resurrection of subfamily Philodendroideae.
Bogner & Petersen (2007) basically follow Mayo, Bogner & Boyce (1997) but include subfamily Lemnoideae and subfamily Zamioculcadoideae (first proposed by Bogner & Hesse, 2005. Zamioculcadoideae, a new subfamily of Araceae. Aroideana 28: 3-20), the new genera published since 1997, i.e. Incarum and Croatiella both of E.G. Goncalves, and reduce to synonymy the genera Lazarum, Hottarum and Heteroaridarum.
It is useful to know that this paper provides users with the most recent update of the arrangement of currently recognized genera of the family.
PhD Thesis
The most recent doctoral thesis presented in Brazil refers to native species citotaxonomy of Anthurium (Araceae) of atlantic forest in Brazil.
The species A. parasiticum, A. comtum, A. lucioi, A. gaudichaudianum, and those belonging to the "harrisii" complex (A. urvilleanum, A. intermedium and A. harrisii were collected in the Brazilian states of Rio de Janeiro, Espírito Santo, São Paulo, Minas Gerais and Rio Grande do Sul.
A total of 30 sets os samples were collected, of which 30% were 2n=2x=30; 66,7% presented 2n=4x=60; and only 3,3% were hexaploid, 2n=6x=90.
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