Pollination of Plectranthus spp. (Lamiaceae) with sigmoid flowers in southern Africa

Potgieter, C.J.; Edwards, T. J.; Staden, J. Van

doi:10.1016/j.sajb.2009.07.009

Cited by 13 publications

(16 citation statements)

References 17 publications

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“…is a large genus of the family Lamiaceae, with 200 species widely distributed in Africa, Asia and Australia (Mabberley 2008). Approximately, 53 species of Plectranthus have been reported in southern Africa (Potgieter et al 2009). Most Plectranthus species have multiple uses as pot herbs, ornamentals, edible food sources, flavours, fodder and therapeutic agents in traditional medicine (Lukhoba et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Distribution, morphological and histochemical characteristics of foliar trichomes of Plectranthus zuluensis (Lamiaceae)

et al. 2015

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There are problems in the delimitation/identification of Plectranthus species and this investigation aims to contribute toward solving such problems through structural and histochemical study of the trichomes. Considering the importance of P. zuluensis as restricted to semi-coastal forests of Natal that possess only two fertile stamens not four as the other species of this genus. The objective of this work was to study in detail the distribution, morphology and histochemistry of the foliar trichomes of this species using light and electron microscopy. Distribution and morphology of two types of non-glandular, capitate and peltate glandular trichomes are described on both leaf sides. This study provides a description of the different secretion modes of glandular trichomes. Results of histochemical tests showed a positive reaction to terpenoids, lipids, polysaccharides and phenolics in the glandular trichomes. We demonstrated that the presence, types and structure of glandular and non-glandular trichomes are important systematic criteria for the species delimitation in the genus.

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Section: Introductionmentioning

confidence: 99%

Distribution, morphological and histochemical characteristics of foliar trichomes of Plectranthus zuluensis (Lamiaceae)

et al. 2015

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“…It is important to note that lonely cues, which are not connected to the nectary, may still be arranged linearly and guide pollinators closer to the nectary without touching the nectary. This is exemplified in the 'dotted' or 'speckled' floral guides found in nature (Potgieter et al, 1999;Goldblatt & Manning, 2009). However, the negative correlations between mean lonely cue count and mean fitness (Fig.…”

Section: Discussionmentioning

confidence: 84%

The evolution of floral guides: using a genetic algorithm to investigate the evolution of floral cue arrangements

Lawson

Rands²

2018

Biological Journal of the Linnean Society

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“…ex Benth. is a native South Africa species [Potgieter et al, 1999]. It is a valuable ornamental plant with delicate white flowers and attractive leaves with green upper surface and purple lower surface [Bercu, 2013].…”

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confidence: 99%

Response of Speckled Spur-Flower to Salinity Stress and Salicylic Acid Treatment

et al. 2015

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Pollination of Plectranthus spp. (Lamiaceae) with sigmoid flowers in southern Africa

Cited by 13 publications

References 17 publications

Distribution, morphological and histochemical characteristics of foliar trichomes of Plectranthus zuluensis (Lamiaceae)

Distribution, morphological and histochemical characteristics of foliar trichomes of Plectranthus zuluensis (Lamiaceae)

The evolution of floral guides: using a genetic algorithm to investigate the evolution of floral cue arrangements

Response of Speckled Spur-Flower to Salinity Stress and Salicylic Acid Treatment

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