Archive of Vanished Flora
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Low-tide Star Aestulittora atlantica
Specimen · N°015 · Sea

Aestulittora atlantica

For only the hours the tide is out, it blooms on the seaside rocks.

FOUND 56.0°N 9.0°W · Rocky coast of the North Atlantic  ·  ✝ EX · Last seen 2024

A low rosette about 6–12 cm tall, pressing thick glossy dark-green leaves to the wet rock. The flowers are small white-green stars that open only for the few hours the ebb tide exposes them to air, sinking beneath the sea when the tide returns.

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Specimen Plates

8 plates · click to enlarge
Low-tide Star plate 1PLATE I
Low-tide Star plate 2PLATE II
Low-tide Star plate 3PLATE III
Low-tide Star plate 4PLATE IV
Low-tide Star plate 5PLATE V
Low-tide Star plate 6PLATE VI
Low-tide Star plate 7PLATE VII
Low-tide Star plate 8PLATE VIII
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Field Note

Habitat
Rocky coast of the North Atlantic. Twice a day it shows itself only for the few hours of low tide, on the wet black rock of the intertidal zone.
Local name
Window of the Tide
Folklore
Locally, days when the flower opens well at low tide were said to mean the sea would stay calm.
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Locator

Coordinates
56.0°N 9.0°W
Rocky coast of the North Atlantic
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Record

For only the hours the tide is out, it blooms on the seaside rocks.

When the tide returns, the flower sinks beneath the sea.

The rocky coast of the North Atlantic.

Twice a day, on the wet black rock left by the ebb, the Low-tide Star appears.

Thick, glossy dark-green leaves cling to the rock.

From between them, small white-green star-shaped flowers open.

More分類・学名・語源などの詳しい標本データ
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Classification

Classification & specimen data
Scientific name
Aestulittora atlantica  K. Brandt, 2024
Taxonomy
Plantae › Angiosperms › Dicotyledons › AestulittoralesAestulittoraceaeAestulittora › atlantica
Voucher
AVF-015 · Holotype
Archive of Vanished Flora (AVF)
Conservation
✝ EX — Extinct Last seen 2024
Collector
N. Drei
2021-04-25
Synonym
Aestulittoropsis atlantica C. Iwabuchi, 2019
Protologue (Latin)
Herba perennis, rhizomate tenui, foliis linearibus, inflorescentia pauciflora. Typus: Rocky coast of the North Atlantic. Species iam extincta.
Discovered / Described
2021 / 2024
Height
6〜12cm
Life form
Rosette perennial
Phyllotaxy
Basal (rosette)
Chromosome
2n = 20
Flowering
Hours at low tide (twice daily)
Pollination
Wind-pollinated
Substrate · pH
Gravelly, near-neutral
Elevation
0〜15 m
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Etymology

Etymology of the name
AestulittoraGENUS
aestutide
littoracoast
atlanticaEPITHET
atlanticAtlantic
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Related

Specimens of the same habitat
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