Pterospermum diversifolium Blume
Metadata
Description
A partly folded grain (photographed at x400) showing exine features at different foci
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Subequatorial view of slightly folded grain (photographed at x400) with one pore
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Another shot of Fig. 2 showing a part of it in optical section
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Deep focus of Fig. 2
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Close-up (photographed at x1000) of pollen showing micro-spinules, spines and sculptured poral membrane
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Close-up of pollen (photographed at x1000) showing sculptured poral membrane
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Close-up (photographed at x1000) of pollen
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of exine (photographed at x1000)
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Close-up of pollen (photographed at x1000) showing sculptured poral membrane
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Subequatorial view (photographed at x400); note the sculptured poral membrane
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Subpolar view (photographed at x400)
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 11
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Close-up of Fig. 12 showing optically sectioned pore
Pollen Slide N°
IFP 21868
Code
pterdive
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Key
pollen_000105
Collection Object
Basis of Record
Preserved specimen
Recorded By
Record Number
Saldanha, C.J.-16034
Collection Code
PIFP
Institution Code
IFP
Code
pterdive
Pollen Slide N°
Pollen Slide N°: IFP 21868
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
Schreb.
Morphology
Symmetry and Form
Monad, radial_symmetry, isopolar, 3-porate, elliptic in equatorial_view, (sub)circular in polar_view
Dimensions
Polar_Axis = 49-60 µm; Equatorial_Axis = 71-79 µm
Apertures
Three pori; Porus: circular, diameter 6-7 µm, distance between the adjacent poral apices ±60-75 µm, annulus undifferentiated, poral membrane granular or microspinular(?), operculate(?), with broad (±3.0 µm) costae_pori
Exine
Echinate, spines 3x4 µm, inter-spinal area tectate, tectum bearing microechinules (h: >0.5 µm), dimorphic sculpture infratectum columellate, exine thickness (infra-spinal) ±3.5 µm
Remark
A stenopalynous genus
Tentative Pollen Typification
Pterospermum type
References (Generic Palynology)
LM (micrographs) of Pterospermum diversifolium in Tissot, C., Chikhi, H. & Nayar, T.S. (1994)
Location
Continent
Country
State / Province
County / District
Locality
Bisle Ghat
Ecology and Taxonomy
A medium-sized tree at the low elevation. Common. Leaf illustration: Pascal, J-P. & Ramesh, B.R. (1987), fig. 379. Generic description and specific key in Flora of Madras: p. 77 (Gamble, J.S., 1967)
Distribution of Species
Western Peninsular India; Western Ghats: in all districts
Distribution of Genus
40 spp., E. Himalaya, Southeast Asia, W. Malaysia (Willis, J.C., 1988). Keys and distribution data for 6 species in Flora of Madras: pp. 77 & 78 (Gamble, J.S., 1967)
Reuse
License
Cite as
Pterospermum diversifolium Blume,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on February, 5th 2025, https://ifp.inist.fr/s/ecological-specimens/item/461859