Excoecaria crenulata Wight
Metadata
Description
SEM - equatorial view with an elliptic colporus showing reticulate exine and microgranulate colpal membrane, and psilate margins that are broadened around the oral region
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view with an infolded colporus with psilate colpal margins; surface to optical section (Figs. 2-4)
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view with an infolded colporus with psilate colpal margins; surface to optical section (Figs. 2-4)
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view with an infolded colporus with psilate colpal margins; surface to optical section (Figs. 2-4)
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view with an intercolpium in optical section
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
SEM - equatorial view with an intercolpium between two infolded apertures
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Polar view (3-lobed) of a grain: LO analysis and optical section (Figs. 7-8)
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Polar view (3-lobed) of a grain: LO analysis and optical section (Figs. 7-8)
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Polar view (apparently inter-subangular) in optical section
Pollen Slide N°
IFP 12741
Code
excocren
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Key
pollen_000048
Collection Object
Basis of Record
Preserved specimen
Recorded By
Record Number
Saldanha, C.J. 13494
Collection Code
PIFP
Institution Code
IFP
Code
excocren
Pollen Slide N°
Pollen Slide N°: IFP 12741
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
L.
Morphology
Symmetry and Form
Monad, radial_symmetry, isopolar, 3-colporate; elliptic in equatorial_view; (sub)circular to 3-(sub)-lobed in polar_view
Dimensions
Polar_Axis = 35-49 µm; Equatorial_Axis = 28-40 µm
Apertures
Three colpora; Colpus: elliptic, colpus apex acute, aperture_membrane psilate (finely granular with SEM - Fig. 1), distance between the adjacent colpal apices ±8.0 µm, margo psilate, broadened like 2 opposing semi-circles in the oral region (See Fig. 1), costae_colpi present; Os: elongated, elliptic (2.0x17.0 µm) with rounded lateral ends, lalongate, oral_costae present(?)
Exine
Reticulate, tectate, mur <1.0 µm, lumina ±1.0 µm, infratectum columellate, exine thickness at the mid-point of the intercolpium ±3.0 µm
Remark
A stenopalynous genus [see Punt, W. (1962)]
Tentative Pollen Typification
Excoecaria type
References (Generic Palynology)
LM & SEM (micrographs) of Excoecaria crenulata in Tissot, C., Chikhi, H. & Nayar, T.S. (1994). Hippomane type (incl. E. bicolor) in Punt, W. (1962)
Location
Continent
Country
State / Province
County / District
Locality
Devalkere
Ecology and Taxonomy
A small tree mainly in shola forests and margins of wet deciduous forests up to 2100m. Common. Generic description and specific key in Flora of Madras: p. 940 (Gamble, J.S., 1967)
Distribution of Species
Peninsular India and Sri Lanka. Western Ghats: from Coorg southwards
Distribution of Genus
40 spp., Tropical Africa and Asia (Willis, J.C., 1988). Keys and distribution data for 3 species in Flora of Madras: pp. 940 & 941 (Gamble, J.S., 1967)
Reuse
License
Cite as
Excoecaria crenulata Wight,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on February, 5th 2025, https://ifp.inist.fr/s/ecological-specimens/item/461802