Dichapetalum gelonioides Engl.
Metadata
Description
Equatorial view: focus on aperture
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: analysis of reticulate (or fovelotae) exine and colpate aperture (Figs. 2-4)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: analysis of reticulate (or fovelotae) exine and colpate aperture (Figs. 2-4)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: analysis of reticulate (or fovelotae) exine and colpate aperture (Figs. 2-4)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
SEM - polar view: obtuse colpal apices and foveolate exine
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
SEM - close-up of Fig. 5
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
3-aperturate grain in polar view: analysis of reticulate ( or foveolate) exine and optical section (lower half), (Figs. 7-9)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
3-aperturate grain in polar view: analysis of reticulate ( or foveolate) exine and optical section (lower half), (Figs. 7-9)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
3-aperturate grain in polar view: analysis of reticulate ( or foveolate) exine and optical section (lower half), (Figs. 7-9)
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
4-aperturate grain in polar view: partly in optical section
Pollen Slide N°
IFP 21871
Code
dichgelo
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Key
pollen_000034
Collection Object
Basis of Record
Preserved specimen
Recorded By
Collection Code
PIFP
Institution Code
IFP
Code
dichgelo
Pollen Slide N°
Pollen Slide N°: IFP 21871
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
Thou.
Morphology
Symmetry and Form
Monad, radial_symmetry, isopolar, 3-colpate, elliptic ( E > P ) in equatorial_view, (sub)triangular (angulaperturate) in polar_view
Dimensions
Polar_Axis = 12-18 µm; Equatorial_Axis = 19-27 µm
Apertures
Three colpi, Colpus: elliptic,colpus apex obtuse, aperture_membrane psilate, margo undifferentiated or diffuse, distance between the adjacent colpal apices ±11.0 µm, costae_colpi absent
Exine
Micro-reticulate, mur <1.0µm, lumina <1.0µm, infratectum feebly columellate, exine thickness: at poles ±1.5 µm; at the mid-point of the intecolpium ±1.5 µm
Remark
Five configurations (each group constituted of pollen morphologically related taxa) have been recognised on the bases of apertures, exine, ornamentation, outline and measuements by Punt, W. (1975). Colporate D. gelonoides type in Punt, W. (1976)
Tentative Pollen Typification
Dichapetalum gelonioides type
References (Generic Palynology)
LM & SEM (micrographs) of Dichapetalum gelonioides in Tissot, C., Chikhi, H. & Nayar, T.S. (1994). SEM of 11 species of Dichapetalum classifiable under five configurations in Punt, W. (1975). SEM of 11 species of Dichapetalum in Punt, W. (1976). SEM of D. nigrescens (reticulate exine) in Lobreau-Callen, D., Straka, H. & Friederich, B. (1984)
Location
Continent
Country
State / Province
County / District
Locality
Bisle Ghat
Ecology and Taxonomy
A small tree up to 1300m, usully in undergrowth or at the forest margins. Leaf illustration: Pascal, J-P. & Ramesh, B.R. (1987), fig. 90. Generic and specific descriptions in Flora of Madras: p. 134 (Gamble, J.S., 1967)
Distribution of Species
Indo-Malaysia, Western Ghats: from South Kanara to Anamalai and Travancore up to 1300m
Distribution of Genus
150-200 spp., Trop., especially Africa (Willis, J.C., 1988). Distribution data for 1 species in Flora of Madras: p. 134 (Gamble, J.S., 1967)
Reuse
License
Cite as
Dichapetalum gelonioides Engl.,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on February, 5th 2025, https://ifp.inist.fr/s/ecological-specimens/item/461788