Cryosophileae

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Cryosophileae
Cryosophila warscewiczii Inflorescence.jpg
Cryosophila warscewiczii at the Royal Botanic Gardens, Kew
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Coryphoideae
Tribe: Cryosophileae
J.Dransf, N.W.Uhl, C.Asmussen, W.J.Baker, M.M.Harley & C.Lewis
Type genus
Cryosophila
Genera

Coccothrinax Sarg.
Chelyocarpus Dammer
Cryosophila Blume
Hemithrinax Hook.f.
Itaya H.E.Moore
Leucothrinax C.Lewis & Zona
Sabinaria R.Bernal & Galeano
Schippia Burret
Thrinax L.f. ex Sw.
Trithrinax Mart.
Zombia L.H.Bailey

Contents

Cryosophileae is a tribe of palms in the subfamily Coryphoideae. [1] [2] The tribe ranges from southern South America, through Central America, into Mexico and the Caribbean. It includes New World genera formerly included in the tribe Thrinacinae, which was split after molecular phylogenetic studies showed that Old World and New World members of the tribe were not closely related. [3]

Description

Members of the tribe are palms with fan shaped (or palmate) leaves and are pleonanthic—they flower repeatedly over the course of their lifespan. They are usually hermaphroditic (male and female sex organs are present together in flowers), but some species are polygamodioecious, in which some plants have both male and hermaphroditic flowers, while others have a mixture of female and hermaphroditic flowers. [3]

Taxonomy

NWTP  
Sabaleae

Sabal

Cryosophileae

Trithrinax

Itaya

Sabinaria

Chelyocarpus

Cryosophila

Schippia

Thrinax

Leucothrinax

Hemithrinax

Zombia

Coccothrinax

Simplified phylogeny of the New World thatch palms based on four nuclear genes and the matK plastid gene. [4]

The Cryosophileae is one of eight tribes within subfamily Coryphoideae. [3] Within the subfamily, it is a sister taxon to the Sabaleae [5] (which includes just a single genus, Sabal ). [3] Together these are sometimes referred to as the New World thatch palm clade. [5]

In the first edition of Genera Palmarum (1987), Natalie Uhl and John Dransfield placed a variety of New World and Old World genera in the subtribe Thrinacinae. [6] Subsequent phylogenetic analysis showed that the Old World and New World members of the Thrinacinae were not closely related. As a consequence of this, Dransfield and colleagues split the subtribe, and placed the New World species in a new tribe, the Cryosophileae, while the Old World species were placed in the subtribe Rhapidinae, which was transferred to the tribe Livistoneae. [3] A new genus and species, Sabinaria magnifica, was described in 2013 and placed in this tribe. [7]

Evolution

Andrew Henderson and colleagues considered the distribution of the tribe to suggest that its origins lay in the southern hemisphere. [8] However, the discovery of fossil remains of Trithrinax in Caribbean amber from the Tertiary indicates that this genus, now the southernmost member of the Cryosophileae, once existed further to the north. This, coupled with the presence of Thrinax fossils from the Tertiary in Europe, and Cryosophila -like fossil pollen from Central America in the same time period, led Stine Bjorholm and colleagues to conclude that the current distribution of these palms represents northern hemisphere origin and a north-to-south migration, instead of the reverse. [9] Cryosophileae are found in France during Oligocene (Rupelian) and Miocene (Tortonian). [10]

Distribution

The members of the Cryosophileae form a sequence of species that extends from southern South America through Central America and into Mexico and the Caribbean. The southernmost genus, Trithrinax, is found in subtropical parts of Argentina, Bolivia, Brazil, Paraguay and Uruguay, and includes some of the most cold-tolerant palms in the Americas. Chelyocarpus and Itaya are next in the sequence; Chelyocarpus and Itaya are found in the western Amazon basin—in Peru, Brazil and Ecuador—with one species of Chelyocarpus extending into the Pacific lowlands of Colombia. Sabinaria is restricted to the Colombia/Panama border. [7] Cryosophila ranges from northern Colombia, through Central America into Mexico. Schippia is found in Belize and a small area of Guatemala. Thrinax, Coccothrinax and Leucothrinax are widespread in the northern Caribbean; Zombia is restricted the island of Hispaniola and Hemithrinax to Cuba. [8] [11]

Related Research Articles

<i>Thrinax</i> Genus of palms

Thrinax is a genus in the palm family, native to the Caribbean. It is closely related to the genera Coccothrinax, Hemithrinax and Zombia. Flowers are small, bisexual and are borne on small stalks.

<i>Zombia</i> Genus of palm endemic to Hispaniola

Zombia antillarum, commonly known as the zombie palm, is a species of palm tree and the only member of the genus Zombia. It is endemic to the island of Hispaniola in the Greater Antilles. Usually found in dry, hilly areas of northern and southern Haiti and the northwest of the Dominican Republic, Z. antillarum is a relatively short fan palm with clustered stems and a very distinctive appearance caused by its persistent spiny leaf sheaths. Threatened by habitat destruction in Haiti, Z. antillarum is a popular ornamental species due to its distinctive appearance, low maintenance requirements and salt tolerance.

<i>Chelyocarpus</i> Genus of palms

Chelyocarpus is a genus of small to medium-sized fan palms which are native to northwestern South America. Some are upright trees, while others creep along the ground. Species are used for thatch, to weave hats, stuff pillows and as a source of salt.

<i>Cryosophila</i> Genus of palms

Cryosophila is a genus of medium-sized fan palms that range from central Mexico to northern Colombia. Species in the genus can be readily distinguished from related genera by their distinctive downward-pointing spines on the stem, which are actually modified roots. They are known as the "root spine palms".

<i>Itaya</i> Species of plant

Itaya amicorum is a medium-size fan palm that is native to Brazil, Colombia and Peru. It is the only species in the genus Itaya. It was unknown to science until 1972, when it was discovered on the bank of the Itaya River in the Peruvian Amazon.

<i>Schippia</i> Genus of palms

Schippia concolor, the mountain pimento or silver pimeto, is a medium-sized palm species that is native to Belize and Guatemala. Named for its discoverer, Australian botanist William A. Schipp, the species is threatened by habitat loss. It is the sole species in the genus Schippia.

<i>Trithrinax</i> Genus of palms

Trithrinax is a genus of flowering plants in the subfamily Coryphoideae of the family Arecaceae. The name is derived from ancient Greek, where tri means three, and thrinax trident. It was named in 1837 by Carl Friedrich Philipp von Martius, a German botanist and explorer.

<span class="mw-page-title-main">Ceroxyloideae</span> Subfamily of palms

The Ceroxyloideae are a subfamily of flowering plants in the palm family found mainly in the Americas with an outlying genus in each of Australia, Madagascar, and the Comoros. Recently revised, the former subfamily Phytelephantoideae was reduced to the tribal level and included, while the Hyophorbeae tribe was reassigned to Arecoideae; it now contains eight genera.

<span class="mw-page-title-main">Archontophoenicinae</span> Subtribe of palms

Archontophoenicinae is a botanical subtribe consisting of four genera of palms, namely Archontophoenix from Queensland and New South Wales and Actinokentia, Chambeyronia and Kentiopsis from New Caledonia. Phylogenetic relationships between the four genera are unresolved.

<span class="mw-page-title-main">Rhopalostylidinae</span> Subtribe of palms

Rhopalostylidinae is a botanical subtribe consisting of two genera of palms from Australia and New Zealand, Hedyscepe and Rhopalostylis. These two genera were formerly included in Archontophoenicinae, to which they are morphologically similar, until a recent revision.

<i>Leucothrinax</i> Genus of palms

Leucothrinax morrisii, the Key thatch palm, is a small palm which is native to the Greater Antilles, northern Lesser Antilles, The Bahamas and Florida and the Florida Keys in the United States.

<span class="mw-page-title-main">Coryphoideae</span> Subfamily of palms

The Coryphoideae is one of five subfamilies in the palm family, Arecaceae. It contains all of the genera with palmate leaves, excepting Mauritia, Mauritiella and Lepidocaryum, all of subfamily Calamoideae, tribe Lepidocaryeae, subtribe Mauritiinae. However, all Coryphoid palm leaves have induplicate (V-shaped) leaf folds, while Calamoid palms have reduplicate leaf folds. Pinnate leaves do occur in Coryphoideae, in Phoenix, Arenga, Wallichia and bipinnate in Caryota.

<span class="mw-page-title-main">Corypheae</span> Tribe of palms

Corypheae is a tribe of palm trees in the subfamily Coryphoideae. In previous classifications, tribe Corypheae included four subtribes: Coryphinae, Livistoninae, Thrinacinae and Sabalinae, but recent phylogenetic studies have led to the genera within these subtribes being transferred into other tribes. Tribe Corypheae is now restricted to the genus Corypha alone.

<span class="mw-page-title-main">Caryoteae</span> Tribe of plants

Caryoteae is a tribe in the palm family Arecaceae, distributed across Southeast Asia, from southern India and Sri Lanka east to Vanuatu and northernmost Queensland, Australia. It was long considered a member of subfamily Arecoideae on the basis of its inflorescences, which resemble those of tribe Iriarteeae, and the flowers arranged in triads, which are common across Arecoideae. However, phylogenetic studies based on DNA repeatedly link Caryoteae to subfamily Coryphoideae. Caryoteae do have leaves with induplicate folds, a feature found in most Coryphoid palms, but unlike most Coryphoideae, the leaves are pinnate or bipinnate (Caryota). Phoenix is the only other Coryphoid genus with induplicate, pinnate leaves.

<span class="mw-page-title-main">Borasseae</span> Tribe of palms

Borasseae is a tribe in the palm subfamily Coryphoideae. The tribe ranges from southern Africa and Madagascar north through the Arabian Peninsula to India, Indochina, Indonesia and New Guinea. Several genera are restricted to islands in the Indian Ocean. The two largest genera, Hyphaene and Borassus, are also the most widespread.

<span class="mw-page-title-main">Chuniophoeniceae</span> Tribe of palms

Chuniophoeniceae is a tribe of palms in subfamily Coryphoideae of plant family Arecaceae. The four genera within the tribe are morphologically dissimilar and do not have overlapping distributions. Three of the genera are monotypic, while the fourth genus (Chuniophoenix) has three species.

<span class="mw-page-title-main">Trachycarpeae</span> Tribe of palms

Trachycarpeae is a tribe of palms in subfamily Coryphoideae of the plant family Arecaceae. It has the widest distribution of any tribe in Coryphoideae and is found on all continents, though the greatest concentration of species is in Southeast Asia. Trachycarpeae includes palms from both tropical and subtropical zones; the northernmost naturally-occurring palm is a member of this tribe. Several genera can be found in cultivation in temperate areas, for example species of Trachycarpus, Chamaerops, Rhapidophyllum and Washingtonia.

Lepidocaryeae is a tribe of plants in the family Arecaceae. Subtribes and genera in the tribe are:

<i>Genera Palmarum</i>

Genera Palmarum is a botany reference book that gives a detailed overview of the systematic biology of the palm family (Arecaceae). The first edition of Genera Palmarum was published in 1987. The second edition was published in 2008, with a reprint published in 2014. Genera Palmarum is currently the most detailed monograph on palm taxonomy and systematics.

References

  1. Baker, William J.; Dransfield, John (2016). "Beyond Genera Palmarum: progress and prospects in palm systematics". Botanical Journal of the Linnean Society. 182 (2): 207–233. doi: 10.1111/boj.12401 .
  2. Dransfield, John; Uhl, Natalie W.; Asmussen, Conny B.; Baker, William J.; Harley, Madeline M.; Lewis, Carl E. (2008). Genera Palmarum: The Evolution and Classification of Palms. Royal Botanic Gardens, Kew. ISBN   978-1-84246-182-2.
  3. 1 2 3 4 5 Dransfield, John; Natalie W. Uhl; Conny B. Asmussen; William J. Baker; Madeline M. Harley; Carl E. Lewis (2005). "A New Phylogenetic Classification of the Palm Family, Arecaceae". Kew Bulletin. 60 (4): 559–69. JSTOR   25070242.
  4. Cano, Ángela; Bacon, Christine D.; Stauffer, Fred W.; Antonelli, Alexandre; Serrano‐Serrano, Martha L.; Perret, Mathieu (2018). "The roles of dispersal and mass extinction in shaping palm diversity across the Caribbean". Journal of Biogeography. 45 (6): 1432–1443. doi:10.1111/jbi.13225. ISSN   1365-2699.
  5. 1 2 Baker, William J.; Vincent Savolainen; Conny B. Asmussen-Lange; Mark W. Chase; John Dransfield; Félix Forest; Madeline M. Harley; Natalie W. Uhl; Mark Wilkinson (2009). "Complete Generic-Level Phylogenetic Analyses of Palms (Arecaceae) with Comparisons of Supertree and Supermatrix Approaches". Systematic Biology. 58 (2): 240–256. doi: 10.1093/sysbio/syp021 . PMID   20525581.
  6. Uhl, Natalie E.; John Dransfield (1987). Genera Palmarum: a classification of palms based on the work of Harold E. Moore Jr. Lawrence, Kansas: The L. H. Bailey Hortorium and the International Palm Society.
  7. 1 2 Bernal, Rodrigo; Galeano, Gloria (2013-11-08). "Sabinaria , a new genus of palms (Cryosophileae, Coryphoideae, Arecaceae) from the Colombia-Panama border". Phytotaxa. 144 (2). ISSN   1179-3163.
  8. 1 2 Henderson, Andrew; Gloria Galeano; Rodrigo Bernal (1995). Field Guide to the Palms of the Americas. Princeton, New Jersey: Princeton University Press. pp. 37–51. ISBN   978-0-691-08537-1.
  9. Bjorholm, Stine; Jens-Christian Svenning; William J. Baker; Flemming Skov; Henrik Balslev (2006). "Historical legacies in the geographical diversity patterns of New World palm (Arecaceae) subfamilies". Botanical Journal of the Linnean Society. 151 (1): 113–125. doi: 10.1111/j.1095-8339.2006.00527.x . Archived from the original on 2012-10-20.
  10. Thomas, Romain; D. De Franceschi (2012). "First evidence of fossil Cryosophileae (Arecaceae) outside the Americas (early Oligocene and late Miocene of France): Anatomy, palaeobiogeography and evolutionary implications". Review of Palaeobotany and Palynology. 171 (1): 27–39. doi:10.1016/j.revpalbo.2011.11.010.
  11. Lewis, C.E.; Zona, S. (2008). "Leucothrinax morrisii, a New Name for a Familiar Caribbean Palm". Palms. 52 (2): 84–88.