The Embryology of Monsonia senegalensis Guill. &amp; Perr.

Narayana, H. S.; Arora, P. K.

doi:10.2307/2423059

Cited by 6 publications

(6 citation statements)

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“…Triplets of antesepalous stamens as in Nitraria and Peganum are, to our knowledge, not known in any other sapindalean family. Among other rosids they are known from Geraniaceae in Geraniales ( Hypseocharis , Monsonia , Sarcocaulon , Payer, 1857 ;Saunders, 1937 ;Narayana and Arora, 1963 ;Rama Devi, 1991 ;, Elaeocarpaceae in Oxalidales (Matthews and Endress, 2002 ) and Ixonanthaceae in Malpighiales (Narayana and Rao, 1966 ;. In addition, antepetalous stamens are in general smaller than antesepalous ones across the eudicots (e.g.…”

Section: Androeciummentioning

confidence: 99%

Comparative floral structure and development of Nitrariaceae (Sapindales) and systematic implications

Bachelier¹,

Endress²,

Craene³

2011

Flowers on the Tree of Life

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Section: Androeciummentioning

confidence: 99%

Comparative floral structure and development of Nitrariaceae (Sapindales) and systematic implications

Bachelier¹,

Endress²,

Craene³

2011

Flowers on the Tree of Life

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“…Each carpel contains 2 axilar, campylotropous ovules, the lower being abortive (NARAYANA & ARORA, 1963;BOESEWINKEL & BEEN, 1979; BOESEWINKEL, 1997). The style is obsolete, with 5 stigmata, linear or clavate, or rarely short and ovoid or rounded ( fig.…”

Section: Morphological Charactersmentioning

confidence: 99%

“…Apart from the two comprehensive monographs (KNUTH 1912;VENTER 1979), partial studies of Monsonia were carried out on pollen morphology (VERHOEVEN & VENTER, 1986), embryology (NARAYANA & ARORA, 1963), mericarp and seed arrangement (YEO, 1990), anatomy of nectaries (LINK, 1990) and phytogeography (VENTER, 1983). A grouping analysis based on morphological features was performed by VENTER (1990), supporting his sectional treatment of Monsonia.…”

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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“…Various aspects of the flowers of these two families have been studied (e.g. Brunies, 1900;Narayana and Arora, 1963;Labbe, 1964;Kumar, 1976;Link, 1989Link, , 1994Devi, 1991;Struck, 1997;Aldasoro et al, 2001). Several authors investigated the ontogeny, anatomy and morphology of the floral nectaries in the Geraniaceae and related families and genera (e.g.…”

Section: Introductionmentioning

confidence: 99%

The relationship between nectaries and floral architecture: a case study in Geraniaceae and Hypseocharitaceae

et al. 2017

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Despite the superficial similarity of the flowers in Geraniaceae and Hypseocharitaceae, there is broad diversity in floral organization and floral architecture. While the receptacular origin of the spur-like cavity in Pelargonium had already been described, anthophore formation via intercalary growth of the receptacle in the other genera had not been previously documented. In the context of the most recent phylogenies of the families, an evolutionary series for the floral architecture is proposed, underscoring the importance of synorganization in these seemingly simple flowers.

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The Embryology of Monsonia senegalensis Guill. & Perr.

Cited by 6 publications

References 0 publications

Comparative floral structure and development of Nitrariaceae (Sapindales) and systematic implications

Comparative floral structure and development of Nitrariaceae (Sapindales) and systematic implications

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

The relationship between nectaries and floral architecture: a case study in Geraniaceae and Hypseocharitaceae

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