Pittosporum tetraspermum Wight & Arn.
Metadata
Description
Equatorial view with a colporus and an intercolpium and medium striato-reticulate exine
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Mid-focus of Fig. 1
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Low-focus of Fig. 1
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 1: note the broader ectexine around poles
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: note the colporus and the medium striato-reticulate exine surface
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Mid-focus of Fig. 5
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 5
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Subpolar view: in low focus
Pollen Slide N°
IFP 2734
Code
pitttetr
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Key
pollen_000100
Collection Object
Basis of Record
Preserved specimen
Recorded By
Record Number
MH 4494
Collection Code
PIFP
Institution Code
IFP
Code
pitttetr
Pollen Slide N°
Pollen Slide N°: IFP 2734
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
BanksexSoland.apudGaertn.
Morphology
Symmetry and Form
Monad, radial_symmetry, 3-colporate, elliptic in equatorial_view, (sub)circular to sublobed in polar_view
Dimensions
Polar_Axis = 38-42 µm; Equatorial_Axis = 24-32 µm
Apertures
Three colpora; Colpus: elliptic, colpus apex acute, aperture_membrane psilate, distance between the adjacent colpal apices ±9.0 µm), margo undifferentiated, costae_colpi present; Os: broadly elliptic, lolongate, oral_costae thin
Exine
Striato-reticulate, tectate, infratectum columellate, exine thickness µm; at the mid-point of the intercolpium and at poles ±3.0 µm
Remark
A eurypalynous genus characterised by differences in pollen characters [see Erdtman, G. (1952)]; The pollen of P. fasciculatum Hook. f. with reticulate exine is different from the other indigenous (New Zealand) species of Pittosporum [Moar, N.T. (1994)]
Tentative Pollen Typification
Pittosporum type X
References (Generic Palynology)
Palynogram of P. dasycaulon in Erdtman (1952: fig. 188a). LM of many New Zealand species of Pittosporum and SEM of P. kirkii, P. umbellatum and P. fasciculatum in Moar, N.T. (1993)
Location
Continent
Country
State / Province
Locality
Manimuthar Dam
Maximum Elevation in Meters
300m
Ecology and Taxonomy
A tree of montane Shola forest, above 1800m. Generic description and specific key in Flora of Madras: pp. 39 & 40 (Gamble, J.S., 1967)
Distribution of Species
Western Ghats from Nilgiris to Travancore Hills of Coimbatore
Distribution of Genus
150 spp., Trop. & subtrop. Africa, Asia, Australia, New Zealand, Pacific (Willis, J.C., 1988). Distribution data for 4 species in Flora of Madras: pp. 39 & 40 (Gamble, J.S., 1967)
Reuse
License
Cite as
Pittosporum tetraspermum Wight & Arn.,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on April, 5th 2025, https://digitalcollections.ifpindia.org/s/ecological-specimens/item/461854