Anzia ornata

Anzia ornata (Zahlbr.) Asah.
Ornate Black-foam

Photo © Malcolm Hodges, from a specimen collected in Dougherty Co., Ga., 10 November 2012

Federal Protection: No US federal protection

State Protection: No Georgia state protection

Global Rank: G3

State Rank: S1S2

Element Locations Tracked in Biotics: No

SWAP 2015 Species of Greatest Conservation Need (SGCN): No

SWAP 2025 Species of Greatest Conservation Need (SGCN): Yes

2025 SGCN Priority Tier: Moderate Conservation Concern

Element Occurrences (EOs) in Georgia: 0

Habitat Summary for element in Georgia: Seasonally flooded hardwood swamp forests

Description

Green lobes tipped and edged (and sometimes ribbed) in white, contrasting sharply with matte-black spongy undersides; edges sorediate along mature lobes; FIELD ID: contrasting colors with soredia make this species unmistakable

Similar Species

Anzia colpodes is sometimes fertile, & never sorediate

Related Rare Species

Anzia colpodes

Habitat

Seasonally flooded hardwood swamp forests, on Quercus laurifolia bark

Life History

Corticolous crustose lichenized fungus; photobiont a species of green unicellular alga (Trebouxia?)

Survey Recommendations

More work is needed to see if more grows near the single site

Range

Coastal Plain

Threats

Harvesting old-growth swamp forests

SWAP 2025 Threat Matrix

Threat 1 Threat 2 Threat 3

General Threat Biological resource use Pollution None

Specific Threat Logging & wood harvesting Air-borne pollutants None

	Threat 1	Threat 2	Threat 3
General Threat	Biological resource use	Pollution	None
Specific Threat	Logging & wood harvesting	Air-borne pollutants	None

Georgia Conservation Status

Rare, known from a single site, ostensibly protected (WMA)

Conservation Management Recommendations

Avoid harvesting mature swamp forests on WMA

SWAP 2025 Conservation Actions:

Action 1: Protect key populations using land acquisition or easements
Action 2: Complete a distributional survey to assess current range, conservation status or to identify best populations

References

Brodo, I. M. 2001. Lichens of North America. Yale University Press, New Haven, Conn.

Brodo, I. M. 2016. Keys to lichens of North America: revised and expanded. Yale University Press, New Haven, Conn.

Esslinger, T. L. 2021. A cumulative checklist for the lichen-forming, lichenicolous and allied fungi of the continental United States and Canada. Version 24. Opuscula Philolichenum 20: 100-394.

Authors of Account

Malcolm Hodges

Date Compiled or Updated

27 February 2022