Myriopteris covillei

Myriopteris covillei, formerly known as Cheilanthes covillei,[1] is a species of lip fern known by the common name Coville's lip fern.

Myriopteris covillei

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Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Family: Pteridaceae
Genus: Myriopteris
Species:
M. covillei
Binomial name
Myriopteris covillei
Synonyms
  • Cheilanthes covillei Maxon
  • Hemionitis covillei (Maxon) Christenh.

Coville's lip fern is native to California, Baja California, Arizona, Oregon, and Utah.[2] It grows in rocky crevices in the mountains and foothills.

In California it is found in chaparral, yellow pine forest, pinyon-juniper woodland, and Joshua tree woodland habitats.[1]

Description

This fern has green leaves which may be up to 4-pinnate, that is, made up of leaflets that subdivide 3 times, such that the leaflets are layered with overlapping rounded segments. The leaves have a bumpy, cobbled look.

The undersides of the leaves have scales which are lengthened outgrowths of the epidermis. Tucked under the scales are the sporangia, which make the spores.

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References
  1. Jepson: Myriopteris covillei . accessed 9.30.2015.
  2. USDA: Cheilanthes covillei
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