2024 Edition • Get the App • Cite this Page
X

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:
Donate $15 per month
(0.2¢/heliophily index)
Donate $30 per month
(0.4¢/heliophily index)
Donate $50 per month
(amazing!)
Donate another
or one-time amount

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Didymoglossum

Copy permalink to share

1 Leaves 1-2× pinnately compound or lobed, with distinctly pinnate venation
1 Leaves entire to irregularly and palmately lobed, with palmate to slightly pinnate venation.
  2 Leaf margins fringed with paired disclike scales; soral involucres 5-15 per leaf; leaf blades 2 cells thick between the veins
  2 Leaf margins fringed with dark stellate hairs; soral involucres 1-6 per leaf; leaf blades 1 cell thick between the veins.
    3 Midvein extending to the apex of the leaf blade; involucral lips not distinct from the blade in color; leaves usually < 1 cm long; soral involucres usually 1 per leaf; [widespread in our area]
    3 Midvein absent or not extending past the midpoint of the leaf blade; involucral lips dark-margined; soral involucres 1-6 per leaf; [of FL peninsula].
      4 Leaves 1-3 cm long; soral involucres not flaring at mouth
      4 Leaves 0.5-1 cm long; soral involucres flaring at mouth