Log In New Account Sitemap
  • Home
  • Search
    • Search Collections
    • Map Search
    • Dynamic Species List
    • Exsiccati
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Search Images
  • Species Checklists
    • North America
  • Crowdsource
  • Contacts
    • Partners
  • Acknowledgements
Macrothelypteris
Family: Thelypteridaceae
Macrothelypteris image
  • FNA
  • Resources
Alan R. Smith in Flora of North America (vol. 2)
Stems short-creeping, thick, 1 cm diam. Blades 2-pinnate-pinnatifid nearly throughout, broadest at base, apex gradually reduced; pinnae pinnate-pinnatifid, sessile or stalked, not connected by wing along rachis; costae not grooved adaxially; buds absent; veins free, often forked, tips not reaching margin; rachises and costae lacking scales; indument abaxially of unbranched, septate hairs mostly over 1 mm. Sori round, medial to supramedial; indusia small, less than 0.3 mm diam., often obscured in mature sori; sporangial capsules bearing short-stalked glands. x = 31.
Macrothelypteris banaensis
Images
not available
Macrothelypteris contingens
Image of Macrothelypteris contingens
Macrothelypteris multiseta
Image of Macrothelypteris multiseta
Macrothelypteris ogasawarensis
Image of Macrothelypteris ogasawarensis
Macrothelypteris oligophlebia
Image of Macrothelypteris oligophlebia
Macrothelypteris ornata
Image of Macrothelypteris ornata
Macrothelypteris polypodioides
Image of Macrothelypteris polypodioides
Macrothelypteris subviridifrons
Images
not available
Macrothelypteris torresiana
Image of Macrothelypteris torresiana
Macrothelypteris viridifrons
Image of Macrothelypteris viridifrons
Macrothelypteris x subviridifrons
Image of Macrothelypteris x subviridifrons

The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.
The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.