Nomenclatural status
Nomenclatural status

LSID urn:lsid:fossilplants.info:name:2D7563A1-4800-4FA4-B9DB-F68CEC9B039F species
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Typha latissimisperma A. B. Doweld, New names of Typha of Northern Eurasia (Typhaceae) pp.[235]

Name
latissimisperma
Rank
Species
Publication
New names of Typha of Northern Eurasia (Typhaceae)
Year
2017
Page
235
Authors
A. B. Doweld
Journal
Acta Palaeobotanica
Issu
2
Volume
57
Generic
Typha
Repository
Natural History Museum, London, U.K.
Repository number
V.17528
Stratigraphy
Rupelian
Geography
Bembridge Marls, Gurnard Bay, Isle of Wight, U.K
Palaeogeography
Eurasia (Europe)
Status
seeds
Diagnosis
Seeds pendulous anatropous, narrowly elliptic, 487–1162 μm long, 235–467 μm wide, translucent. Rounded end of seed often narrowing gradually with a broad mucro; opposite end truncate with a circular aperture which may be closed by an operculum with a central, stalk-like mucro. Raphe a narrow longitudinal fold. Seed coat composed of two layers: outer layer (?testa) of longitudinally elongate, oblong cells, inner layer (?tegmen) of transversely elongate hexagonal cells. [Seeds not seen within fruits].
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