The genus Sarcocaulon *

Moffett, Rodney

doi:10.4102/abc.v12i4.1424

Cited by 23 publications

(7 citation statements)

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“…In the trnL-F cladogram the species are split into two subclades, one of which enjoys reasonable high bootstrap support (82%). The classification of the former Sarcocaulon species according to the two gene regions does not match the sections according to Moffett (1979) whose infrageneric classification was mainly based on leaf morphology. The former Sarcocaulon species and those of Monsonia section Olopetalum share the same basic chromosome number and an identical pollen sculpture Venter 1986, 1988;Verhoeven and Marais 1990).…”

Section: Discussionmentioning

confidence: 99%

“…Sweet (1820), Boissier (1867), Harvey and Sonder (1894), Reiche (1896), Knuth (1912), Kers (1968), Venter (1979Venter ( , 1990, Moffett (1979Moffett ( , 1997, Verhoeven and Venter (1986) and Dreyer et al (1997) contributed to a better understanding of Monsonia and Sarcocaulon and proposed taxonomic classifications of the genus. Aldaroso et al (2001) proposed the most recent infrageneric classification of Monsonia s. str.…”

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confidence: 99%

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The phylogeny of Monsonia L. (Geraniaceae)

2007

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Abstract. The phylogeny of Monsonia L. (Geraniaceae) is examined. Analysis of nrDNA ITS and trnL (UAA) 5'exon-trnF (GAA) chloroplast DNA sequence data of 26 Monsonia and two outgroup Pelargonium species, suggests monophyly for the genus including the former genus Sarcocaulon (DC.) Sweet. The species of Monsonia sect. Sarcocaulon resolve as two subclades (ITS cladogram 80% and trnL-F cladogram 96%) and two additional species in an unresolved basal polytomy, in a clade with species of the sect. Olopetalum and M. senegalensis. All these species share the basic chromosome number x = 11. The remaining species have derived karyotypes of x = 12, 10, 9 or 8. Chromosome sizes vary considerably between the species, and polyploids are rare. The current infrageneric classification is discussed.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

The phylogeny of Monsonia L. (Geraniaceae)

2007

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“…SWEET (1826) raised Monsonia sect. Sarcocaulon to generic rank, a taxonomic criterion adopted in the most recent monographs (KNUTH 1912;VENTER 1979;MOFFETT 1979). BOISSIER (1867) proposed an alternative classification with only two sections, sect.…”

Section: Introductionmentioning

confidence: 99%

Anatomy, Morphology, and Cladistic Analysis of Monsonia L. (Geraniaceae).

Aldasoro¹,

Navarro²,

Vargas³

et al. 2001

Anal. Jard. Bot. Madr.

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Se exploran mediante un an41isis cladfstico las relaciones filogen&icas entre las 25 especies incluidas en el genero Monsonia. Tras una detallada revisi6n se seleccionan 20 caracteres raorfoldgicos y anatomicos, entre ellos algunos previamente no descritos sobre los nectarios, el androceo y los mericarpos. El anSlisis filogen&ico produjo nueve arboles mas parsimoniosos. El arbol de consenso estricto muestra dos clados principales: uno, formado por las nueve especies de Monsonia sect. Monsonia, caracterizadas por las aristas plumosas y las tres de Sarcocaulon que se usaron como grupo externo; y el segundo, fonnado por las 16 especies de Monsonia sect. Olopetalum, que comparten el tipo de separaci6n del mericarpo, la consistencia de la columela y las paredes gruesas en el mericarpo. Como consecuencia surgen nuevas dudas sobre la monofilia de Monsonia. Sin embargo, nuestros datos apoyan la clasificacion subgene'rica actual de Monsonia si se incluyen M. tongipes y M. speciosa en la sect. Olopetalum. Numerosos caracteres del mericarpo estan relacionados con el tipo de zoocoria, lo cual parece derivado en Monsonia al igual que en otras geraniaceas.Palabras clave: anatomi'a, morfologia, anSlisis cladistico, Monsonia, Geraniaceae. Phylogenetip relationships among the 25 species of the old-world genus Monsonia are explored by means of a cladistic analysis. After a detailed revision, 20 morphological and anatomical characters were selected, including some new ones from nectaries, androecium, and mericarps. Phylogenetic analysis yielded 9 most parsimonious trees. The strict consensus tree showed two major clades: one is formed by the 9 species of Monsonia sect. Monsonia, characterised by plumose awns, plus Sarcocaulon; and a second with the 16 species of Monsonia sect. Olopetalum which share the type of mericarp detaching, consistency of columella and the thick mericarp walls. Consequently, some doubts about the monophyly of Monsonia exists. However, the current infrageneric classification of Monsonia is supported after transferring M. longipes and M. speciosa to sect. Olopetalum. Several characters of the mericarp are related to zoochory, which seems to be a derived syndrome in Monsonia, as in the other Geraniaceae.

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“…Anticipating that it may be a new species, pictures were sent to the WIND Herbarium to compare it with the existing collections, and the plant did not match any of the previously recorded specimens in Namibia. However, the plant was found to match the description of Moffett (1979) of M. herrei. Although the plant lacked fruits, the flowers and vegetative features were sufficient to give positive identification as Monsonia herrei.…”

Section: Resultsmentioning

confidence: 95%

“…According to Moffett (1979), the species M. herrei, which was transferred from Sarcocaulon (DC.) Sweet to Monsonia by Albers (1996), is confined to the south-eastern Richtersveld on the South African side of the border.…”

Section: Resultsmentioning

confidence: 99%

New record of Monsonia herrei for Namibia

Nanyeni

Nzuma

2018

Bothalia

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Background: The southern part of Namibia’s terrain is highly inaccessible making it difficult to explore. Expeditions into difficult terrain can result in new biological discoveries for Namibia. Monsonia herrei has been recorded for South Africa, but has not previously been recorded for Namibia.Objectives: As part of updating the biodiversity records of Namibia, we report the occurrence of a species not previously recorded for the Namibian flora.Method: A botanical field trip was undertaken in September 2014 to the far south of Namibia in the Aussenkehr region along the Orange River. Plant identification was carried out based on herbarium vouchers, observation and photographic records. One collection constituted a new record of the species for Namibia. A voucher specimen of this new record was collected and deposited at the National Botanical Research Institute Herbarium (WIND). Plant identification was confirmed by experts on plants from the region.Results: One species not previously recorded for Namibia, namely Monsonia herrei (L. Bolus) F. Albers, was found during the exploration of the Aussenkehr area.Conclusions: This new record for Namibia confirms the need to update the inventory of the flora of Namibia.

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The genus Sarcocaulon *

Abstract: CONTENTS

Cited by 23 publications

References 1 publication

The phylogeny of Monsonia L. (Geraniaceae)

The phylogeny of Monsonia L. (Geraniaceae)

Anatomy, Morphology, and Cladistic Analysis of Monsonia L. (Geraniaceae).

New record of Monsonia herrei for Namibia

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