Aspleniaceae Spleenwort Family

Aspleniaceae Spleenwort Family

Aspleniaceae Spleenwort Family This is a monogeneric family of diverse ferns. Our two species are both of rocky habitats, arising and Page | 1 spreading on fibrous roots. Stipes are very scaly, the fronds pinnate with a few scales and glandular pubescence. Sori are arranged along the veins. Indusia are present, with one side attached. Asplenium L. As described above. There are 700 species worldwide, two in NS. Key to species A. Rachis dark reddish brown throughout. Asplenium trichomanes aa. Rachis dark, only at the base. A. trichomanes–ramosum Asplenium trichomanes L. Maidenhair Spleenwort; doradille chevelue Small tufted plants arise from a compact rhizome. Stipe and rachis are reddish–brown and persistent. Scales are blackish with a lighter border. Pinnae are ovate, nearly opposite, toothed. Sori are long and narrow. Frequents damp shady cliffs and talus, especially on acidic rocks such as granite, basalt and sandstone. Photo by Carl Munden 1-1 Aspleniaceae Rare and local in Cape Breton. Locally abundant at Big Intervale, Margaree. Few mainland NS locations: scattered in the Cobequids and in Annapolis and Kings counties. Page | 2 Elsewhere from NS to AK, variously south to CA, TX and FL; Eurasia, Africa and Australia. STATUS: YELLOW-listed. Photo by Roger Lloyd Asplenium trichomanes–ramosum L. Green Spleenwort; doradille verte A very small fern resembling Woodsia, but for the elongated sori. Stipe and rachis are green, with a few opposite pinnae. Scales are reddish–brown to black. Also found along shady streams, cliffs, rocks such as limestone and other basic substrates. Photo by Sean Blaney 1-1 Aspleniaceae Scattered in the Cobequids and western Cape Breton. Ranges from Greenland; NF to ON, south to WI and NY; west coast. Eurasia. Page | 3 STATUS: YELLOW-listed. Photo by Roger Lloyd 1-1 Aspleniaceae .

View Full Text

Details

  • File Type
    pdf
  • Upload Time
    -
  • Content Languages
    English
  • Upload User
    Anonymous/Not logged-in
  • File Pages
    3 Page
  • File Size
    -

Download

Channel Download Status
Express Download Enable

Copyright

We respect the copyrights and intellectual property rights of all users. All uploaded documents are either original works of the uploader or authorized works of the rightful owners.

  • Not to be reproduced or distributed without explicit permission.
  • Not used for commercial purposes outside of approved use cases.
  • Not used to infringe on the rights of the original creators.
  • If you believe any content infringes your copyright, please contact us immediately.

Support

For help with questions, suggestions, or problems, please contact us