Colors

Data mode

Account

Login
Sign up

Collapse this

Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Copy permalink to share

Didymoglossum petersii (A. Gray) Copeland. Dwarf Filmy Fern. Phen: Jun-Aug. Hab: On vertical faces of acidic rock outcrops in humid gorges (in sw. NC, nw. SC, and ne. GA, primarily of the Savannah River drainage), in the context of the very humid escarpment gorges on relatively dry rocks, not on rocks receiving substantial seepage or spray from waterfalls, also on outcrops of Altamaha Grit in the Coastal Plain, on tree bark (especially Magnolia grandiflora and Fagus grandifolia) in swamps and hammocks (in FL, LA, and MS), and on chert around limestone sinkholes (in FL). Dist: W. NC, nw. SC, sw. and sc. TN, south to n. peninsular FL, c. AL, s. MS, and e. LA; disjunct in the Ozarks and Ouachitas of AR; disjunct in Mexico (CHP, VER, and PUE), Guatemala, Costa Rica, and El Salvador.

ID notes: This diminutive species is often overlooked, except by bryologists and hepaticologists; superficially, it does resemble a moss or liverwort more than a fern.

Origin/Endemic status: Native

Synonymy : = K3, K4, Ebihara et al (2006); = Trichomanes petersii A.Gray – Ar, Fl1, FNA2, K1, Meso1, RAB, S13, Sf, Tn, W, WH3, Wessels Boer (1962)

Links to other floras: = Trichomanes petersii - FNA2

Show in key(s)

Show parent genus

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC
  • Eastern Mountains and Piedmont: FAC

Heliophily : 1

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Alan Cressler: Didymoglossum petersii, Phyllite Ravines, Talladega National Forest, Cleburne County, Alabama 5 by Alan Cressler source | Original Image ⭷
image of plant© Alan Cressler: Didymoglossum petersii, Phyllite Ravines, Talladega National Forest, Cleburne County, Alabama 6 by Alan Cressler source | Original Image ⭷
image of plant© Alan Cressler: Didymoglossum petersii, Davidson Creek Gorge, Chattahoochee National Forest, Habersham County, Georgia 1 by Alan Cressler source | Original Image ⭷

Feedback

See something wrong or missing on about Didymoglossum petersii? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.