
Macrothelypteris torresiana
Mariana Maiden Fern
As recorded: Macrothelypteris torresiana (Gaudich.) Ching
Plantae › Tracheophyta › Polypodiopsida › Polypodiales › Thelypteridaceae
- Collected by
- Forbes, C.N.
- Collector number
- 606.H
- Date
- May 20, 1915
- Locality
- Hilo, Kaumana Cave
- Island
- Hawaiʻi Island
- Region
- Hawaii, United States
- Identified by
- Lamoureux, C.H.
- Record type
- Preserved specimen
Collected the same day
On May 20, 1915, Forbes, C.N. also collected 1 other specimen.
Macrothelypteris torresiana observed alive in Hawaiʻi
This specimen was collected in 1915. Since 2000, iNaturalist observers have recorded 92 research-grade sightings in the wild, most recently on 2026-06-25.

2026-06-25
Kīlauea Iki Trail, Pahoa, HI, US
(c) pupa_babe, some rights reserved (CC BY-NC)

2026-05-29
Kailua Kona, HI, US
(c) Carlos/Giancarla Ross (AnimeBirder), some rights reserved (CC BY-NC)

2026-02-28
Hawaii County, HI, USA
(c) Peter Scott, some rights reserved (CC BY-NC)

2026-02-06
Kuliouou - Kalani Iki, Honolulu, HI, USA
(c) Kevin Faccenda, some rights reserved (CC BY)

2026-02-06
Kuliouou - Kalani Iki, Honolulu, HI, USA
(c) Mike Ross, some rights reserved (CC BY-NC)

2025-12-19
Pāhoa, HI 96778, USA
(c) grace_sibley, some rights reserved (CC BY-NC-ND)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Macrothelypteris torresiana. BISH 5933. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956396113. Accessed via explore.bishopmuseum.org/specimens/bish/5933.
Record sources
- GBIF occurrence 5956396113 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
