| Myriopteris yavapensis | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Family: | Pteridaceae |
| Genus: | Myriopteris |
| Species: | M. yavapensis |
| Binomial name | |
| Myriopteris yavapensis (T.Reeves ex Windham) Grusz & Windham | |
Myriopteris yavapensis, formerly known as Cheilanthes yavapensis, [1] is a species of cheilanthoid fern with the common name Yavapai lip fern native to the southwest United States. [2]
Myriopteris yavapensis is a small fern growing from a long creeping rhizome that is 1 to 3 mm in diameter with bicolored scales. Leaves are scattered and 7 to 35 cm long and 2 to 6 cm wide with a dark brown petiole. The leaf blade is oblong-lanceolate to nearly ovate and up to 4-pinnate (highly divided) at base. The ultimate leaf segments are very small, round to oblong and beadlike, with the largest usually 1 to 2 mm in length. Leaves are abaxially (lower side) glabrous or with a few small scales near the base, and adaxially (upper side) appearing sparsely pubescent but actually nearly glabrous (the few hairs come from the rachis and costa, which also have abundant broader scales). The costae are green adaxially for most of length, with conspicuous overlapping abaxial scales up to 1 mm wide at their base, and in shape lanceolate, truncate, to cordate, with coarse cilia usually distributed the entire length of scale. The leaflet edges curl under to form a false indusium that partially covers the sori. Myriopteris yavapensis is very similar morphologically to Myriopteris wootonii, and careful study will be necessary to determine the proper disposition of many specimens. [3] [4]
Myriopteris yavapensis is native to mountains in Arizona, New Mexico, and Texas. It grows on rocky slopes and ledges, usually on igneous substrates, at 500 to 2400 meters in elevation. [3]
Myriopteris yavapensis is an apogamous (asexual, producing spores without fertilization) tetraploid, apparently formed by hybridization between Myriopteris lindheimeri (maternal) and Myriopteris covillei (paternal). [4] [5]
Myriopteris covillei, formerly known as Cheilanthes covillei, is a species of cheilanthoid fern known by the common name Coville's lip fern. Coville's lip fern is native to the southwestern United States and Mexico.
Myriopteris parryi, formerly known as Cheilanthes parryi, is a species of lip fern known by the common name Parry's lip fern.
Myriopteris clevelandii, formerly known as Cheilanthes clevelandii, is a species of lip fern known by the common name Cleveland's lip fern. It is native to southern California and Baja California in Mexico. The leaf is divided into small, bead-like segments densely covered with scales beneath. In M. clevelandii, some of these scales are reduced to hairlike structures, which help distinguish it from the closely related M. covillei. It is usually found growing on exposed rock, particularly igneous rock.
Myriopteris gracilis, formerly known as Cheilanthes feei, is a species of lip fern known by the common name slender lip fern or Fee's lip fern.
Myriopteris cooperae, formerly Cheilanthes cooperae, is a species of lip fern known by the common name Mrs. Cooper's lip fern, or simply Cooper's lip fern.
Myriopteris gracillima, formerly known as Cheilanthes gracillima, is a species of lip fern known by the common name lace lip fern. It is native to western North America, where it grows in rocky habitat from British Columbia to California to Montana.
Myriopteris intertexta, formerly Cheilanthes intertexta, is a species of lip fern known by the common name coastal lip fern. It is native to montane California and western Nevada, Oregon east of the Cascades, and with a disjunct population in central Utah. It grows in dry rocky habitats in sun, typically in rock cracks with little or no soil.
Myriopteris windhamii, formerly known as Cheilanthes villosa, is a species of lip fern, with the common name villous lipfern. It is native to the southwestern United States.
Myriopteris lanosa, the hairy lip fern, is a moderately-sized fern of the eastern United States, a member of the family Pteridaceae. Its leaves and stem are sparsely covered in hairs, but lack scales, hence its common name. One of the cheilanthoid ferns, it was usually classified in the genus Cheilanthes until 2013, when the genus Myriopteris was again recognized as separate from Cheilanthes. It typically grows in shallow, dry, soil, often in rocky habitats.
Myriopteris, commonly known as the lip ferns, is a genus of cheilanthoid ferns. Like other cheilanthoids, they are ferns of dry habitats, reproducing both sexually and apogamously. Many species have leaves divided into a large number of small, bead-like segments, the probable inspiration for the generic name. Hairs and/or scales are often present on both the upper and lower surfaces of the leaf, and their presence and appearance are useful in distinguishing between species. The genus is most diverse in Mexico, but species are found from southwestern Canada south to southern Chile, and one species is endemic to southern Africa.
Myriopteris alabamensis, the Alabama lip fern, is a moderately-sized fern of the United States and Mexico, a member of the family Pteridaceae. Unlike many members of its genus, its leaves have a few hairs on upper and lower surfaces, or lack them entirely. One of the cheilanthoid ferns, it was usually classified in the genus Cheilanthes as Cheilanthes alabamensis until 2013, when the genus Myriopteris was again recognized as separate from Cheilanthes. It typically grows in shade on limestone outcrops.
Myriopteris maxoniana is a species of cheilanthoid fern known only from one collection in Tamaulipas, Mexico. It closely resembles Myriopteris longipila and was not described as a distinct taxon until 2004.
Myriopteris yatskievychiana is a small fern native to Mexico, a member of the family Pteridaceae. It is known only from a single collection in the Mexican state of Sonora. While superficially similar to golden lip fern, a widespread species in Mexico, differences in its coating of hairs and its small size make it distinctive. One of the cheilanthoid ferns, it was usually classified in the genus Cheilanthes until 2013, when the genus Myriopteris was again recognized as separate from Cheilanthes.
Myriopteris rufa, commonly known as Eaton's lip fern, is a moderately-sized fern of Mexico and the southwestern United States, with outlying populations in Costa Rica and the Appalachian Mountains. One of the cheilanthoid ferns, it was usually classified in the genus Cheilanthes, as Cheilanthes eatonii, until 2013, when the genus Myriopteris was again recognized as separate from Cheilanthes. It typically grows in rocky habitats, most frequently on limestone but also sometimes on basalt or shale.
Myriopteris wootonii, formerly known as Cheilanthes wootonii, is a species of fern in the Pteridaceae family with the common name Wooton's lace fern.
Myriopteris fendleri, formerly known as Cheilanthes fendleri, is a species of fern in the Pteridaceae family with the common name Fendler's lip fern. It is native to the southwest United States and northern Mexico.
Myriopteris lindheimeri, formerly known as Cheilanthes lindheimeri, is a species of fern in the Pteridaceae family with the common name fairy swords.
Myriopteris scabra, commonly known as rough lipfern, is a species of cheilanthoid fern native to Mexico and the south-western United States (Texas).
Myriopteris lendigera is a species of cheilanthoid fern with the common name nit-bearing lip fern.
Myriopteris wrightii, formerly known as Cheilanthes wrightii, is a species of cheilanthoid fern with the common name Wright's lipfern. It is native to the southwestern United States and northern Mexico.