A Note on the Pollen Morphology of the Empetraceae

Kim, K. H.; Nilsson, Siwert; Praglowski, Joseph

doi:10.1080/00173138809429950

Cited by 9 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar cause for comparatively thicker septum has been discussed for tetrads of the family Annonaceae (Le Thomas et al, 1986). However, no significant correlation was found between compactness of tetrad and septum thickness in the present study or published literature (Kim et al, 1988).…”

Section: Discussioncontrasting

confidence: 94%

Pollen morphology of <i>Rhododendron</i> L. and related genera and its taxonomic significance

Sarwar

Takahashi

2013

Bangladesh J. Plant Taxon

View full text Add to dashboard Cite

Pollen grains of 40 taxa of Rhododendron L. and its closely related genera, Therorhodion L. and Menziesia Sm., were examined by means of light microscopy and scanning electron microscopy (SEM), or SEM alone. Pollen tetrads of R. japonicum, R. schlippenbachii, R. tsusiophyllum and M. pentandra were examined also withtransmission electron microscopy. In all the genera studied, 3-colporate, oblate tosuboblate pollen grains are arranged in tetrahedral tetrads. The apocolpial pollen wall is composed of the exine - well developed tectum, columellae, foot layer and endexine, and the intine. On the contrary, the septal exine is composed of fragmentary tectum, and the two foot layers of adjacent grains are sometimes connected by columellae and endexine. Among different infrageneric taxa only the subsect. Ledum (sect. & subgen. Rhododendron) was characterized by small sized pollen tetrads, higher 2f/D value and rugulate exine sculpture. The pollen morphological characteristics overlapped each other in all other taxa. Thus palynological features showed little usefulness in the infrageneric classification of Rhododendron, however, they gave additional support to the individualgeneric status of Menziesia and Tsusiophyllum, and the sister relationship between Rhododendron and Therorhodion.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17393Bangladesh J. Plant Taxon. 20(2): 185-199, 2013

show abstract

Section: Discussioncontrasting

confidence: 94%

Pollen morphology of <i>Rhododendron</i> L. and related genera and its taxonomic significance

Sarwar

Takahashi

2013

Bangladesh J. Plant Taxon

View full text Add to dashboard Cite

show abstract

“…The seeds have six dorsal vittae, a roughly elliptical section, and a convex ventral side in which the hilum and an orifice are located (Figure 1, E-I; Aedo and Castroviejo 2012; Bugalhão and Queiroz 2005;Pérez-Jordà et al 2017;Queiroz and Mateus 2011;Villar 1993) 1 . Wood, leaf, and stem anatomy are described by Carlquist (1989) and Queiroz and van der Burgh (1989), and pollen grain morphology by Kim et al (1988) and Mateus (1989). The uniformity of Ericaceae pollen grains and wood may prevent precise taxonomic determinations of both where poor preservation of seeds and fruit occurs.…”

Section: Research Communicationsmentioning

confidence: 99%

“…Although the plant remains can turn up far removed from the current habitat, as the case of Newport has shown, archaeobotanists knowledgeable in more general floras would have not necessarily been aware of its existence due to the fairly limited current distribution of the taxon and its rarity in modern botanical reference collections. In addition, difficulties in the taxonomic determination of wood remains and pollen grains from the Ericaceae and related families (Queiroz and van der Burgh 1989, Kim Nilsson and Praglowski 1988, Mateus 1989 hamper the identification of other types of remains in the archaeological record.…”

Section: Research Communicationsmentioning

confidence: 99%

The Archaeobotany and Ethnobotany of Portuguese or White Crowberry (Corema album)

López-Dóriga¹

2018

EBL

View full text Add to dashboard Cite

Portuguese crowberry (Corema album (L.) D. Don) is a shrub considered endemic to the Atlantic coastal dunes of the Iberian Peninsula. For many reasons, among which the most prominent are habitat loss and competition from invasive species, but possibly also due to overexploitation, the survival of several of its populations is now compromised. By promoting the identification of its archaeobotanical remains and gathering information about its past uses, the current need for conservation is emphasized. The plant has been exploited for its berries since at least the Early Neolithic and the species features in a number of historical written sources. Archaeological sites located within its current natural distribution area have yielded relatively abundant archaeobotanical finds. This evidence suggests that its distribution area was much larger in the past and has decreased rapidly in recent decades. Its archaeological importance may be misrepresented due to issues with identification, particularly outside its current distribution area. It is hoped that this paper will contribute to a higher identification rate of archaeobotanical remains of this plant, eventually leading to a more thorough recognition of its past importance and contributing to its present conservation.

show abstract

Class Magnoliopsida (Dicotyledons)

2009

Flowering Plants

View full text Add to dashboard Cite

A Note on the Pollen Morphology of the Empetraceae

Cited by 9 publications

References 4 publications

Pollen morphology of <i>Rhododendron</i> L. and related genera and its taxonomic significance

Pollen morphology of <i>Rhododendron</i> L. and related genera and its taxonomic significance

The Archaeobotany and Ethnobotany of Portuguese or White Crowberry (Corema album)

Class Magnoliopsida (Dicotyledons)

Contact Info

Product

Resources

About