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Radula flaccida

Scientific Name: Radula flaccida

Family: Radulaceae

Category: Liverwort

Growth: Nonvascular

Duration:

Other Names:

       

Radula flaccida

Radula flaccida is a species of liverwort belonging to the genus Radula and the family Radulaceae.

Considerations for Pets

  • As a liverwort, Radula flaccida grows closely appressed to its substrate.

Considerations for Children

  • As a liverwort, Radula flaccida grows closely appressed to its substrate.

Taxonomy and Nomenclature

  • Scientific Name: Radula flaccida Lindenb. & Gottsche
  • Family: Radulaceae
  • Kingdom: Plantae
  • Phylum: Hepatophyta (also referred to as Marchantiophyta)
  • Class: Hepatopsida (also referred to as Jungermanniopsida)
  • Order: Jungermanniales
  • Genus: Radula
  • Synonyms: The text mentions Radula epiphylla Mitt. ex Steph. and Radula foliicola Spruce, ms as possible synonyms or related species, although not explicitly stated as direct synonyms.
  • TSN (ITIS Taxonomic Serial Number): 15152

Distribution and Habitat

  • Radula flaccida is described as an epiphyllous liverwort of upland tropical forests worldwide.
  • Specific locations mentioned include Costa Rica (La Gamba) and the Amazon.
  • It's found in the Afro-American tropics.

Ecological Role

  • Radula flaccida is an epiphyte, meaning it grows on other plants (specifically, on leaves in this case).
  • Studies have investigated the physiological relationship between Radula flaccida and its host plants.
  • Habitat fragmentation can affect the genetic diversity and population structure of Radula flaccida in the Amazon.

Morphological Characteristics

  • The plants are green and regularly pinnate or bipinnate.
  • They grow closely appressed to the substrate.
  • The liverwort demonstrates a radial growth pattern.

Genetic and Cytological Information

  • The text mentions a study involving the "PsbT (psbT) gene, partial cds psbT-psbN intergenic spacer, complete sequence PsbN (psbN) gene, complete cds psbN- psbH". This indicates research into the genetic makeup of Radula flaccida, specifically concerning genes related to photosynthesis (psbT and psbN).
  • Linkage disequilibrium in Radula flaccida populations has been studied in relation to habitat fragmentation.

Interactions with Other Organisms

  • Radula flaccida serves as a host for certain Ascomycete fungi, specifically those studied by Dbbeler in 1998.
  • The liverwort can intercept a small percentage (up to about 2%) of incident light, affecting the light available to the host plant.
  • Several species of *Nectria* fungi have been recorded on Radula flaccida.

Resources and Further Information

  • Encyclopedia of Life
  • Tropicos
  • Andean Bryo
  • ITIS (Integrated Taxonomic Information System) - TSN 15152
  • Discover Life
  • NatureServe Explorer