Blepharistemma membranifolium (Miq.) Ding Hou
Metadata
Description
Equatorial view: colporate aperture (bow-shaped os) and granular or scabrate exine (Figs. 1-3)
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: colporate aperture (bow-shaped os) and granular or scabrate exine (Figs. 1-3)
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: colporate aperture (bow-shaped os) and granular or scabrate exine (Figs. 1-3)
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: note the protruding oral parts
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view: optical section
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
SEM, Equatorial view: intercolpial exine (micro-)areolate, note the areolae decreasing in size toward polar areas
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Polar view: faintly granular exine surface and optical section (Figs. 7-8)
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Polar view: faintly granular exine surface and optical section (Figs. 7-8)
Pollen Slide N°
IFP 2826
Code
blepmemb
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Synonyms
Blepharistemma corymbosum Wall.
Key
pollen_000019
Collection Object
Basis of Record
Preserved specimen
Recorded By
Collection Code
PIFP
Institution Code
IFP
Code
blepmemb
Pollen Slide N°
Pollen Slide N°: IFP 2826
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
Wall.exBenth.
Morphology
Symmetry and Form
Monad, radial_symmetry, isopolar, 3-colporate, elliptic in equatorial_view, (sub)circular in polar_view
Dimensions
Polar_Axis = 23-28 µm; Equatorial_Axis = 19-23 µm
Apertures
Three colpora; Colpus: elliptic, broad (±2.5 µm) but constricted at the equator, colpus apex acute, aperture_membrane granular distance between the adjacent colpal apices: ±5.0-6.0 µm, margo undifferentiated, costae_colpi present; Os: bow-shaped, lateral ends curved, lalongate, oral_costae present
Exine
Psilate to faintly areoloid, (SEM shows the distinctively areolate character), tectate, infratectum columellate, exine thickness: at poles ±2.0 µm, at the mid-point of the intercolpium ±1.2 µm
Remark
A monospecific genus
Tentative Pollen Typification
Blepharistemma membranifolium type
References (Generic Palynology)
LM & SEM (micrographs) of B. membranifolia in Tissot, C., Chikhi, H. & Nayar, T.S. (1994). SEM & TEM of B. membranifolia in Vezey, E.L., Shah, V.P., Skvarla, J.J. & Raven, P.H. (1988: figs. 17 & 57)
Location
Continent
Country
State / Province
County / District
Locality
Thiruvananthapuram
Ecology and Taxonomy
A medium-sized tree up to 400m. Leaf illustration: Pascal, J-P. & Ramesh, B.R. (1987), fig. 316. Generic and specific descriptions in Flora of Madras: p. 326 (Gamble, J.S., 1967)
Distribution of Species
Western Peninsular India. Western Ghats: from South Kanara to Travancore. Endemic to Western Ghats. Rare. Map: Ramesh, B.R. & Pascal, J-P. (1997): Plate N°- 287
Distribution of Genus
1 sp., India (Willis, J.C., 1988). Distribution data for 1 species in Flora of Madras: p. 326 (Gamble, J.S., 1967)
Reuse
License
Cite as
Blepharistemma membranifolium (Miq.) Ding Hou,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on February, 5th 2025, https://ifp.inist.fr/s/ecological-specimens/item/461773