Taxon Details

Graphis saxorum

Baja rock lichen

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Taxon Summary:

Graphis saxorum, commonly known as Baja rock lichen, is a crustose lichen (saxicolous) in the Graphidaceae that is found in California and elsewhere. It occurs within Coastal scrub, growing at elevations from 30 to 80 meters. Graphis saxorum is ranked 3, Plants About Which We Need More Information, A Review List.

Classification

Scientific Name: Graphis saxorum Egea & Torrente
Common Name: Baja rock lichen
Family:	Graphidaceae
Element Code:	NLTES29470
USDA Plants Symbol:	GRSA3
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	3
Fed List:	None
State List:	None
Global Rank:	G1G2
State Rank:	S1
Other Status:
CRPR Changes:
Add Date:	2014-03-01
Date Edited:	2022-01-05

Ecology and Life History

Lifeform: crustose lichen (saxicolous)

Blooming Period:

Elevation:
30 - 80 meters
100 - 260 feet

General Habitats:

Coastal scrub (?)

Microhabitat Details: Volcanic rocks

Microhabitat:

Notes

Notes: Added to CRPR 3 based on prior inclusion in CNDDB; CALS Conservation Committee sponsorship is pending. Known in CA only from vicinity of Isthmus Cove and Little Harbor on SCT Is. See The Bryologist 100(2):207-209 (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	%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					2
A	B	C	D	X	U
0	0	0	0	0	2

Occurrence Status:
Historical >20 Years	2
Recent <=20 Years	0

Presence:
Presumed Extant	2
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Baja California (BA), California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX)

Quads: Name (Quad Code)
Santa Catalina North (3311844), Santa Catalina West (3311845)

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