Ptisana is a genus in the eusporangiate fern family Marattiaceae, comprising species historically treated in the genus Marattia. The establishment of this genus follows the 2008 work by Andrew G. Murdock, which supported recognition of this group on the basis of genetic analysis and morphology.[1][2]Ptisana can be distinguished from Marattia by the presence of distinct sutures at the point of leaflet attachment, deeply cut synangia, and the absence of labiate sporangial apertures. The name Ptisana is derived from the Latin word for pearl barley, an allusion to the shape of the synangia.[1]
Ptisana has a palaeotropical distribution, with the westernmost extreme of the range in Ascension Island and extending eastward through tropical Africa, Asia, and Oceania. Ferns in this genus are generally quite large, with fronds often reaching 2–3 meters in length; the one known exception to this is Ptisana rolandi-principis, a critically endangered dwarf species endemic to the Plateau de Dogny in New Caledonia.[3] The basal chromosome number for Ptisana is 2n=78, whereas the one count for Marattia in the strict sense is 2n=80.[4] The type species for the genus is Ptisana salicina, the type specimen of which was collected on Norfolk Island.[1]
^ abcMurdock, Andrew G. (2008). "A taxonomic revision of the eusporangiate fern family Marattiaceae, with description of a new genus Ptisana". Taxon. 57 (3): 737–755. doi:10.1002/tax.573007.
^Murdock, Andrew G. (2008). "Phylogeny of marattioid ferns (Marattiaceae) inferring a root in the absence of a closely related outgroup". American Journal of Botany. 95 (5): 626–641. doi:10.3732/ajb.2007308. PMID 21632388.
^Shepherd, Lara D.; Murdock, Andrew G.; Amice, Rémy; Perrie, Leon R. (2023-02-20). "A synopsis of Ptisana Murdock ferns (Marattiaceae) in New Caledonia based on sequence data and morphology with the recognition of a new vulnerable species, P. soluta (Compton) Murdock & Perrie, comb. nov., stat. nov". Adansonia. 45 (3). doi:10.5252/adansonia2023v45a3. ISSN 1280-8571. S2CID 257914121.
^Smith, Alan R; Mickel, John T (1977). "Chromosome counts for Mexican ferns". Brittonia. 29 (4): 391–398. Bibcode:1977Britt..29..391S. doi:10.2307/2806481. JSTOR 2806481. S2CID 24260292.
Ptisana is a genus in the eusporangiate fern family Marattiaceae, comprising species historically treated in the genus Marattia. The establishment of...
Ptisana salicina, or king fern, is a species of fern native to Norfolk Island, New Zealand and the South Pacific. Large and robust with a distinctive...
Ptisana purpurascens is a species of fern in the family Marattiaceae that is endemic to Ascension Island. It is considered a critically endangered species...
Eupodium usually only have one frond per plant per year (sometimes two). Ptisana is a paleotropical genus. These plants are 2-4 times pinnate, with fronds...
Ptisana howeana is a rare fern endemic to Lord Howe Island, occasionally found in cultivation. The local names are horse shoe fern or king fern. A large...
pakis, a traditional dish of Brunei) as food. Tubers from the "para", Ptisana salicina (king fern) are a traditional food in New Zealand and the South...
from French (Old French). The Old French word came from the Latin word ptisana, which came from the Ancient Greek word πτισάνη (ptisánē), which meant...
whose official abbreviation is "Murdock", who described the fern genus Ptisana Bennet Murdock (1925–2022), American psychologist Colin Murdock (born 1975)...
King fern is a common name for several ferns and may refer to: Ptisana salicina Todea barbara, native to southeastern Australia, New Zealand, and South...
chinch Igbo chị́nchị̀ 'bedbug' Country ibo Igbo Ị̀gbò Pluchea odorata or Ptisana purpurascens Himba Igbo Mba "yam root", a type of yam, Rajania cordata...
requirements of Danaea ferns are still unknown. Ptisana purpurascens a related plant from Ascension Island. Ptisana salicina, from New Zealand. Christenhusz...
Various species in the genus Juniperus Keek – Rorippa sylvestris King fern – Ptisana salicina Kinnikinnik – Cornus amomum Kittentail – Veronica bullii Knotweed...
times a woman has given birth, e.g. para 1 etc. Para, common name of fern Ptisana salicina para, symbol for the fruit fly gene paralytic (gene) Para- (chemistry)...
of ferns have also been noted on the forest floor, such as King Ferns (Ptisana salicina) Additionally, a rare and native fern species known as Sickle...
Marattia in the broad sense was paraphyletic, and subsequently the genera Ptisana and Eupodium were split off. Except for one species in Hawaii, the genus...
taxonomists have included Eupodium within the genus Marattia (along with Ptisana). However, molecular phylogenetic studies and morphological studies of...
eusporangiate fern family Marattiaceae, with description of a new genus Ptisana". Taxon. 57 (3): 737–755. doi:10.1002/tax.573007. Murdock, Andrew G. (2008)...
fern, Cyathea cunninghamii Soft tree fern, Cyathea smithii King fern, Ptisana salicina Prince of Wales fern, Leptopteris superba Hound's tongue fern...
Good and Bad Humours (Bon. Mal. Suc.) On the Ptisan, or Barley-water De Ptisana On the Preservation of Health De Sanitate Tuenda (San. Tu.) 1.4. Of (On)...
Isoetes taiwanensis Isoetes wormaldii Mankyua chejuense Phlegmariurus nutans Ptisana purpurascens There are 81 species, five subspecies, and 13 varieties of...
historia, liber unus. Ejusdem epistolae duae, una de Fare, Chondro, Trago, Ptisana, Crimno et Alica; altera de Zytho et Cerevisia. Antwerp. Dodoens, Rembert...
Flowering Halleria lucida tree Flower of Monopsis stellarioides Fronds of Ptisana fraxinea overhanging the stream A forest patch A. Torr, M. Gardiner. "Iphithi...
the island and developing diarrhea after eating too much para fern root (Ptisana salicina), The rocky sections of Whatipu, Motu Paratūtai, Te Toka Tapu...