Taxon Details

Coscinodon arctolimnius ssp. higuchii

Higuchi's sieve-tooth moss

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Taxon Summary:

Coscinodon arctolimnius ssp. higuchii, commonly known as Higuchi's sieve-tooth moss, is a moss in the Grimmiaceae that is found only in California. It occurs within Alpine boulder and rock field, growing at elevations from 2935 to 2935 meters. Coscinodon arctolimnius ssp. higuchii is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification

Scientific Name: Coscinodon arctolimnius (Steere) Steere ssp. higuchii Hastings & Deguchi
Common Name: Higuchi's sieve-tooth moss
Family:	Grimmiaceae
Element Code:	NBMUS96032
USDA Plants Symbol:
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	GUTU
State Rank:	S1S3
Other Status:
CRPR Changes: added to 4.2 on 2014-05-13
Add Date:	2014-05-13
Date Edited:	2025-10-29

Ecology and Life History

Lifeform: moss

Blooming Period:

Elevation:
2935 - 2935 meters
9630 - 9630 feet

General Habitats:

Alpine boulder and rock field

Microhabitat Details: usually exposed

Microhabitat:

Dry (usually)
Rocky

Notes

Notes: Discovered in CA by M. Hutten in 2011; known only from near Snow Lake in the Emigrant Wilderness. See The Bryologist 100(1):50-55 (1997) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Tuolumne (TUO)

Quads: Name (Quad Code)
Tower Peak (3811925)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory