Sonneratia alba J.E.Smith
Metadata
Description
Equatorial view (a relatively small grain) showing a pore with sculptured poral membrane, 2 polar caps, oval verrucate porate field(s) adjoined by 2 meridional strips.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 1.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Equatorial view showing sculptured poral membrane, verrucate porate fields and 2 polar caps.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Mid-and low focus of Fig. 3.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 3.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 3.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 3.
Pollen Slide N°
IFP 741 / IFP 19631
Code
sonnalba
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Family
Genus
Key
pollen_148
Collection Object
Basis of Record
Preserved specimen
Catalog Number
Record Number
P.F. Fyson-5517 (Pollen Slide N°: IFP 741)
G. Thanikaimoni-1122 (Pollen Slide N°: IFP 19631)
Collection Code
PIFP
Institution Code
IFP
Code
sonnalba
Pollen Slide N°
Pollen Slide N°: IFP 741
Pollen Slide N°: IFP 19631
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
L.f.
Morphology
Symmetry and Form
Monad, radial_symmetry, isopolar, 3-porate, elliptic in equatorial_view, in polar_view nearly circular, often triangular (sinuaperturate shrunken grains).
Dimensions
Polar_Axis = 51-74 µm; Equatorial_Axis = 40-60 µm.
Apertures
Three porate; Porus: circular, diameter 7.0 µm; poral membane finely verrucate, annulus undifferentiated, poral_costae present.
Exine
2 polar_caps are separated by verrucate equatorial_belt that is subdivisible into oval porate fields surrounding pores and narrow rugulate meridional ridges or strips connecting the polar caps and separating the porate fields; tectate, infratectum columellate, exine thickness: at poles ±3.0 µm.
Remark
Sonneratia alba subtype (sensu Muller, J. 1969) Intrageneric pollen differences in the genus Sonneratia and the intraspecific pollen morphological variability of Sonneratia alba - an A-group (subtypes A to I) and a J-group (J to M subtypes) and an abortive group containing O to X subtypes - have been highlighted in Muller, J. (1969).
Tentative Pollen Typification
Sonneratia alba type.
References (Generic Palynology)
SEM of Sonneratia alba (perforate polar_cap, pore and verruco-granular sculpture) in Straka, H. & Friederich, B. (1984); SEM & TEM of S. alba and S.caseolaris in Muller, J. (1978).
Location
Continent
Country
County / District
Locality
s.l. (Pollen Slide N°: IFP 741)
Elephanta Island (Pollen Slide N°: IFP 19631)
Ecology and Taxonomy
A glabrous evergreen tree. Generic description and specific (S. caseolaris L.) key in Flora of Madras: p. 363 (Gamble, J.S., 1967). Illustrations in Prosperi, J., Ramesh, B.R., Grard, P., Jayatissa, L.P., Aravajy, S. & Depommier, D. 2005.
Distribution of Species
Tidal forests on both East and West Coasts.
Distribution of Genus
5 spp.; Tropical Coasts, East Africa and Madagascar to Hainan and Ryukyu Islands, Micronesia, Malaysia, New Hebrides and Solomons, North Australia, New Caledonia (Willis, J.C., 1988). Keys and distribution data for 2 species in Flora of Madras: pp. 363 & 364 (Gamble, J.S., 1967).
Reuse
License
Cite as
Sonneratia alba J.E.Smith,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on April, 3rd 2025, https://digitalcollections.ifpindia.org/s/ecological-specimens/item/461902