Litsea stocksii Hk.f.
Metadata
Description
Unacetolysed inaperturate pollen with spinules and microspinules
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Focus 2 of Fig. 1
Pollen Slide N°
IFP 19131
Code
litsstoc
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 cytoplasm, broad onciform zone and uniformly patterned exine
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 1 slightly different from Fig. 3
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Acetolysed inaperturate exine (microfilmed): pear shaped spinules in different foci
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Acetolysed exine (microfilmed) showing pear shaped spinules in different foci and in optical section
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Metadata
Description
Optical section of Fig. 6; note the granular spheroids between spinules
Pollen Slide N°
IFP 19131
Code
litsstoc
Type
Still image
Creator
IFP Team
Creation Date
[s.d.]
Publisher
Institut français de Pondichéry
License
Key
pollen_000077
Collection Object
Basis of Record
Preserved specimen
Recorded By
Event Date
1970-01-08
Collection Code
PIFP
Institution Code
IFP
Code
litsstoc
Pollen Slide N°
Pollen Slide N°: IFP 19131
Determination
Family
Genus
Specific Epithet
Scientific Name
Scientific Name Authorship
Genus Authorship
Lam.
Morphology
Symmetry and Form
Monad, spherical_to_spheroidal, apolar, inaperturate (omniaperturate)
Dimensions
Diameter = 34-42 µm
Apertures
Inaperturate (no ectexinal apertural markings) or omniaperturate (uniformly patterned exine and intine underlain by thick oncoid zone)
Exine
Echinulate or spinulate; intecta, spinules coniform to pyriform (1.5x1.0-1.2 µm), inter-spinular distance 1-4 µm, with few minute spinules (0.5 µm). Exine surface between the spinules granular or micro-gemmate, inter-spinular exine thickness 0.5 µm
Remark
The majority of taxa of Lauraceae (in tribes Perseeae, Ccinnamomeae, Litseeae and Hypodaphnideae) possess non-typical pollen type with flimsy exine lacking well-defined tectum and infratectum of typical columellate exine (Vasanthy, G. & Zavada, M.S. 1992). TEM observations of Cinnamomum pollen similar to that of Litsea show the infraspinular "basal cushios" and inter-spinular granules ("micro-gemmae") of this pollen type (Rowley, J.R. & Vasanthy, G. 1993)
Tentative Pollen Typification
Lauroideae type I
References (Generic Palynology)
LM, SEM & TEM (micrographs) of Litsea glaucescens in Raj, B. & Van der Werff, H. (1988: Pl; 13). LM & SEM of L. calicaris in Moar, N.T. (1993, Pl. 1: figs. 9-10)
Location
Continent
Country
State / Province
County / District
Locality
Bisle Ghat, bottom section
Ecology and Taxonomy
A small tree in evergreen forests. Leaf ilustration: Pascal, J-P. & Ramesh, B.R. (1987), fig. 223. Generic description and specific key in Flora of Madras: pp. 862 & 863 (Gamble, J.S., 1967)
Distribution of Species
Western Ghats, Nilgiris, Anaimalais and hills of Travancore at 650-1800m. Map: Ramesh, B.R. & Pascal, J-P. (1997): Plate N°- 209
Distribution of Genus
400 spp., Warm As. (N. to Korea & Japan), Australia, America (Willis, J.C., 1988). Keys and distribution data for 19 species in Flora of Madras: pp. 864-867(Gamble, J.S., 1967)
Reuse
License
Cite as
Litsea stocksii Hk.f.,
in Digital Collections, Institut Français de Pondichéry,
Pollen Slides,
consulted on February, 5th 2025, https://ifp.inist.fr/s/ecological-specimens/item/461831