Tribal and generic relationship in the Portulacaceae (Centrospermae)

Nyananyo, Bio Louis

doi:10.1002/fedr.19901010504

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…Pax & Hoffmann (1934) only slightly modified this classification by recognizing the tribe Baselleae of subfamily Montioideae as a separate family, and by treating the genera Ceraria Pearson & Stephens, Portulacaria Jacq., and Philippiamra Kuntze as "intermediate between Portulacaceae and Basellaceae" (Pax & Hoffmann, 1934: 244). More recently, infrafamilial classifications by McNeill (1974), Carolin (1987, and Nyananyo (1990) recognized either seven, five or four, and eight tribes, respectively (for details see table 1 in Applequist & Wallace, 2001). The number of recognized genera ranges from 17 (Nyananyo, 1990) or 18 (McNeill, 1974) up to 28 or 29 (Carolin, 1987.…”

Section: Introductionmentioning

confidence: 99%

“…More recently, infrafamilial classifications by McNeill (1974), Carolin (1987, and Nyananyo (1990) recognized either seven, five or four, and eight tribes, respectively (for details see table 1 in Applequist & Wallace, 2001). The number of recognized genera ranges from 17 (Nyananyo, 1990) or 18 (McNeill, 1974) up to 28 or 29 (Carolin, 1987. These observations clearly indicate the widely differing views on the relationships among the taxa of Portulacaceae and their circumscriptions.…”

Section: Introductionmentioning

confidence: 99%

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Disintegrating Portulacaceae: A new familial classification of the suborder Portulacineae (Caryophyllales) based on molecular and morphological data

Nyffeler

Eggli

2010

TAXON

132

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Traditional classifications of the suborder Portulacineae recognize six families: Basellaceae, Cactaceae, Didiereaceae, Halophytaceae, Hectorellaceae, and Portulacaceae. However, phylogenetic analyses based on molecular sequence data indicate that the traditional family Portulacaceae is paraphyletic and consists of three distinct lineages that also include Cactaceae, Didiereaceae, and Hectorellaceae. We use sequence data from the chloroplast genes matK and ndhF representing 64 species of Portulacineae and outgroups to reconstruct their phylogenetic relationships with Bayesian and maximum parsimony inference methods. Evidence from these molecular phylogenetic analyses as well as from comparative morphological investigations allow us to propose a revised familial classification of the suborder Portulacineae. We recognize eight monophyletic families: We provide a synopsis for this revised family classification with an identification key mainly based on habit and fruit characters, and family diagnoses with information on distribution, taxonomic diversity, and a brief discussion on phylogenetics and classification.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Disintegrating Portulacaceae: A new familial classification of the suborder Portulacineae (Caryophyllales) based on molecular and morphological data

Nyffeler

Eggli

2010

TAXON

132

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“…Nyananyo (1985) on pollen morphology of Talineae showed that palynology provides useful data for the intrageneric classification of the large genera. Nyananyo (1990); Mbagwu and Edeoga (2006) have utilized pollen attributes to establish probable evidence of relationships among certain groups of flowering plants in Nigeria.…”

Section: Taraxacum Officinale Fhwiggmentioning

confidence: 99%

Palynological Studies on Ten Species of Angiosperms from Nepal

Mallick

2017

Int J Appl Sci Biotechnol

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Palynological studies on ten species of angiosperms family namely Hibiscus rosa-sinensis L. officinale, S. asper, C. japonica, C. officinalis and T. officinale and smooth in L. candidum.The general appearance of the pollen grain is circular in P. axillaries but longer than wide in L.candidum. The circular, echinate, large and triporate pollens seem to be primitive ones and spharoidal, hexaporate features have been regarded as comparatively advanced ones. Polyporate pollens are considered to be secondarily derived. The nature of the pollen grain in these species could be evolutionary significance. The similarities in structure of the pollen grain showed the inter-species relationships among the species and that's why put in same family while the differences in structures showed reasons for them to exist as distinct species. Only one species namely L.candidum from monocot family (Liliaceae) included in this study.

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Ribosomal DNA Evidence and Disjunctions of Western American Portulacaceae

Hershkovitz

Zimmer

2000

Molecular Phylogenetics and Evolution

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Tribal and generic relationship in the Portulacaceae (Centrospermae)

Cited by 12 publications

References 8 publications

Disintegrating Portulacaceae: A new familial classification of the suborder Portulacineae (Caryophyllales) based on molecular and morphological data

Disintegrating Portulacaceae: A new familial classification of the suborder Portulacineae (Caryophyllales) based on molecular and morphological data

Palynological Studies on Ten Species of Angiosperms from Nepal

Ribosomal DNA Evidence and Disjunctions of Western American Portulacaceae

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