Petenaea: Difference between revisions
No edit summary |
−Category:Taxa named by Maarten J. M. Christenhusz; −Category:Taxa named by Mark Wayne Chase; +Category:Taxa named by Cyrus Longworth Lundell using HotCat |
||
| (26 intermediate revisions by 17 users not shown) | |||
| Line 1: | Line 1: | ||
{{Short description|Genus of flowering plants}} |
|||
{{italic title}} |
|||
{{Speciesbox |
|||
{{taxobox |
|||
|image = |
|||
|regnum = [[Plant]]ae |
|||
|grandparent_authority = [[Maarten Joost Maria Christenhusz|Christenh.]], [[Michael Francis Fay|M.F.Fay]] & [[Mark Wayne Chase|M.W.Chase]]<ref>{{Cite web | url=http://www.mobot.org/MOBOT/research/APweb/orders/huertealesweb.htm#Petenaeaceae | title=Huerteales}}</ref> |
|||
|unranked_divisio = [[Angiosperms]] |
|||
| ⚫ | |||
|unranked_classis = [[Eudicots]] |
|||
|parent_authority = [[Cyrus Longworth Lundell|Lundell]] |
|||
|unranked_ordo = [[Rosids]] |
|||
| ⚫ | |||
| ⚫ | |||
|authority = Lundell |
|||
|familia = [[Petenaeaceae]] |
|||
| ⚫ | |||
| ⚫ | |||
|genus_authority = [[Lundell]] |
|||
| ⚫ | |||
|binomial = ''Petenaea cordata'' |
|||
|binomial_authority = [[Lundell]] |
|||
| ⚫ | |||
''Petenaea cordata'' (from northern Central America) was first described in [[Elaeocarpaceae]] and later placed in [[Tiliaceae]], but most authors have been uncertain about its familial affinities. It was considered a taxon incertae sedis in the Angiosperm Phylogeny Group classification ([[APG III]]). Molecular analyses based on a recent collection from Guatemala indicate a distant, weakly supported sister-group relationship to the African genus ''Gerrardina'' ([[Gerrardinaceae]]; [[Huerteales]]). As no obvious synapomorphies exist for ''Gerrardina'' and ''Petenaea'', the new monogeneric family |
'''''Petenaea cordata''''' (from northern Central America) was first described in [[Elaeocarpaceae]] and later placed in [[Tiliaceae]], but most authors have been uncertain about its familial affinities. It was considered a taxon ''[[incertae sedis]]'' in the Angiosperm Phylogeny Group classification ([[APG III]]). Molecular analyses based on a recent collection from Guatemala indicate a distant, weakly supported sister-group relationship to the African genus ''Gerrardina'' ([[Gerrardinaceae]]; [[Huerteales]]). As no obvious [[synapomorphy|synapomorphies]] exist for ''Gerrardina'' and ''Petenaea'', the new monogeneric family '''Petenaeaceae''' was proposed.<ref name=christenhusz,etal/> The polymorphic order [[Huerteales]] now comprises four small families: [[Dipentodontaceae]], [[Gerrardinaceae]], Petenaeaceae and [[Tapisciaceae]]. ''Petenaea cordata'' is the only species in the genus '''''Petenaea'''''. |
||
== |
==Description== |
||
Trees to c. 10 m, or large shrubs. Stems often tinged red, villous-tomentose. Leaves minutely stipulate; petioles 5–11 cm, densely short villous, red; blades 8.5-15.5 × 6.5-14.5 cm, chartaceous, densely villous below, glabrescent above, turning red with age, palmately veined at base with 5-7 primary veins, the secondary venation reticulate, the base broadly cordate, the margins minutely denticulate, the apices acute to broadly short-acuminate. Stipules minute, soon caducous. Inflorescences axillary, cymose, long-pedunculate, rose-pink, the branches villous-tomentose; pedicels 5–12 mm, pink. Flowers with the sepals c. 4 mm, valvate, lanceolate, attenuate from the base to the apex, reflexed, reddish pink, the base bearing 2-3 obovoid subsessile glands, and densely villous with hairs c. 2 mm, moniliform, pink; petals absent; disc annular, glandular; stamens 8-12, glabrous, the anthers yellow, opening by an apical pore-like slit; ovary superior, sessile, tomentose; style slender; stigma discoid. Berry 6–12 mm, shallowly 4-5 lobed, ovoid to subglobose, pulpy, sweet, sparsely pubescent; seeds numerous, c. 1 mm, oblong-pyramidal or irregular. Flowering and fruiting continuously. |
|||
{{reflist}} |
|||
==Distribution== |
|||
== External links == |
|||
Endemic to northern [[Mesoamerica]], [[Mexico]] ([[Chiapas]], [[Tabasco]]), [[Belize]], [[Guatemala]] ([[Petén (department)|Petén]]). |
|||
* [http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2010.01074.x/abstract ''Petenaeaceae'']; |
|||
==References== |
|||
{{Reflist|refs= |
|||
<ref name=christenhusz,etal>{{ cite journal |title=''Petenaeaceae'', a new angiosperm family in Huerteales with a distant relationship to ''Gerrardina'' (Gerrardinaceae) |author=Maarten J. M. Christenhusz fls |author2=Michael F. Fay fls |author3=James J. Clarkson |author4=Peter Gasson fls |author5=Julio Morales Can |author6=Jorge B. Jiménez Barrios |author7=Mark W. Chase fls |journal=[[Botanical Journal of the Linnean Society]] |volume=164 |issue=1 |pages=16–25 |date=September 15, 2010 |doi=10.1111/j.1095-8339.2010.01074.x|doi-access=free }}</ref> |
|||
}} |
|||
{{Angiosperm families}} |
|||
| ⚫ | |||
{{Taxonbar|from=Q4360166}} |
|||
| ⚫ | |||
| ⚫ | |||
[[Category:Flora of Central America]] |
|||
{{Huerteales-stub}} |
|||
| ⚫ | |||
| ⚫ | |||
[[Category:Flora of Mexico]] |
|||
| ⚫ | |||
| ⚫ | |||
[[Category:Taxa named by Cyrus Longworth Lundell]] |
|||
Latest revision as of 15:30, 17 April 2024
| Petenaea | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Huerteales |
| Family: | Petenaeaceae Christenh., M.F.Fay & M.W.Chase[1] |
| Genus: | Petenaea Lundell |
| Species: | P. cordata
|
| Binomial name | |
| Petenaea cordata Lundell
| |
Petenaea cordata (from northern Central America) was first described in Elaeocarpaceae and later placed in Tiliaceae, but most authors have been uncertain about its familial affinities. It was considered a taxon incertae sedis in the Angiosperm Phylogeny Group classification (APG III). Molecular analyses based on a recent collection from Guatemala indicate a distant, weakly supported sister-group relationship to the African genus Gerrardina (Gerrardinaceae; Huerteales). As no obvious synapomorphies exist for Gerrardina and Petenaea, the new monogeneric family Petenaeaceae was proposed.[2] The polymorphic order Huerteales now comprises four small families: Dipentodontaceae, Gerrardinaceae, Petenaeaceae and Tapisciaceae. Petenaea cordata is the only species in the genus Petenaea.
Description
[edit]Trees to c. 10 m, or large shrubs. Stems often tinged red, villous-tomentose. Leaves minutely stipulate; petioles 5–11 cm, densely short villous, red; blades 8.5-15.5 × 6.5-14.5 cm, chartaceous, densely villous below, glabrescent above, turning red with age, palmately veined at base with 5-7 primary veins, the secondary venation reticulate, the base broadly cordate, the margins minutely denticulate, the apices acute to broadly short-acuminate. Stipules minute, soon caducous. Inflorescences axillary, cymose, long-pedunculate, rose-pink, the branches villous-tomentose; pedicels 5–12 mm, pink. Flowers with the sepals c. 4 mm, valvate, lanceolate, attenuate from the base to the apex, reflexed, reddish pink, the base bearing 2-3 obovoid subsessile glands, and densely villous with hairs c. 2 mm, moniliform, pink; petals absent; disc annular, glandular; stamens 8-12, glabrous, the anthers yellow, opening by an apical pore-like slit; ovary superior, sessile, tomentose; style slender; stigma discoid. Berry 6–12 mm, shallowly 4-5 lobed, ovoid to subglobose, pulpy, sweet, sparsely pubescent; seeds numerous, c. 1 mm, oblong-pyramidal or irregular. Flowering and fruiting continuously.
Distribution
[edit]Endemic to northern Mesoamerica, Mexico (Chiapas, Tabasco), Belize, Guatemala (Petén).
References
[edit]- ^ "Huerteales".
- ^ Maarten J. M. Christenhusz fls; Michael F. Fay fls; James J. Clarkson; Peter Gasson fls; Julio Morales Can; Jorge B. Jiménez Barrios; Mark W. Chase fls (September 15, 2010). "Petenaeaceae, a new angiosperm family in Huerteales with a distant relationship to Gerrardina (Gerrardinaceae)". Botanical Journal of the Linnean Society. 164 (1): 16–25. doi:10.1111/j.1095-8339.2010.01074.x.
