Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Halimeda opuntia
watercress alga
As recorded: Halimeda opuntia (L.) J.V.Lamour.
Plantae › Chlorophyta › Ulvophyceae › Bryopsidales › Halimedaceae
- Collected by
- Horwitz, L.
- Collector number
- MSD 9359
- Date
- August 6, 1951
- Locality
- approx. 4/5 way out from Ine Village
- Island
- Arno Atoll
- Region
- Marshall Islands
- Identified by
- Hillis-Colinvaux, L.
- Record type
- Preserved specimen
Collected the same day
On August 6, 1951, Horwitz, L. also collected 2 other specimens.
Halimeda opuntia observed alive
This specimen was collected in 1951. Since 2000, iNaturalist observers have recorded 25 research-grade sightings in the wild, most recently on 2026-04-27.
2026-04-27
Curaçao
(c) emmaalves, some rights reserved (CC BY-NC)
2025-05-07
Pigeon Island, Sri Lanka
(c) Linda, some rights reserved (CC BY-NC)
2025-05-03
(c) Sue, some rights reserved (CC BY-NC)
2024-12-29
El Qoseir, Red Sea Governorate, Egypte
(c) Marleen Schouten, some rights reserved (CC BY-NC)
2024-01-03
Fisherman's Rock, North Sound, Grand Cayman
(c) spirula, some rights reserved (CC BY-NC)
2023-09-13
Bonaire, Lac Bay, Caribbean Netherlands
(c) Jay Brasher, some rights reserved (CC BY)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Halimeda opuntia. BISH 547710. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956577185. Accessed via explore.bishopmuseum.org/specimens/bish/547710.
Record sources
- GBIF occurrence 5956577185 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026