pellaea การใช้

• "Pellaea bridgesii " grows from a branching brown rhizome.
• The bluffs feature an outstanding colony of the smooth cliffbrake, " Pellaea glabella ".
• "Pellaea brachyptera " grows from a branching reddish-brown rhizome several centimeters long.
• Tryon also made significant contributions to the study of fern reproductive biology with her studies of apomixis in " Pellaea ".
• "Pellaea atropurpurea " grows in the crevices of dry limestone cliffs, rocky slopes, crevices in alvars, and mortared walls.
• The genus " Pellaea " was placed in the Cheilanthoideae subfamily of the Pteridaceae by Christenhusz " et al . ", 2011.
• Crevices in the limestone provide a distinctive habitat which is somewhat protected from grazing, and which may provide habitat for unusual ferns such as " Pellaea atropurpurea ".
• In such oak woodlands it is often found in understory alliances with such species as the fern " Pellaea andromedifolia " and the fungus " Tremella mesenterica ".
• Also commonly cultivated are various species of " Pteris ", sometimes known as " table ferns, " and some species of " Pellaea ", including the button fern.
• Furthermore, " Pellaea " contains a number of sections that may warrant generic status since they appear to represent convergence in phenotypes related to arid habitats rather than similarity due to common descent.
• "Pellaea rotundifolia " is an evergreen fern that can have more than 30 pairs of round, dark-green, leathery pinnae on fronds up to 18 in . ( 45 cm ).
• The distinction of " Pellaea " from the typically hairier or scalier " Cheilanthes " has proven difficult, with some members being of uncertain affinity, listed by different authors in both genera.
• For much of pteridological history, it was regarded as a reduced form or variety of " Pellaea atropurpurea " . " P . glabella " is known to exist in two cryptic species, one diploid and one tetraploid.
• Although Cheilanthoideae subfamily itself is thought to be monophyletic, at least half of its genera ( including " Cheilanthes ", " Doryopteris ", " Notholaena ", and " Pellaea " ) have been shown to be polyphyletic.
• As there was already a plant named " Banksia blechnifolia ", Mast and Thiele had to choose a new specific epithet; their choice, " pellaeifolia ", is from " Pellaea ", a genus of ferns with pinnate leaves, and the Latin " folium " ( " leaf " ), in reference to the species'fern-like leaves.