Droserapites: Difference between revisions
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{{Short description|Extinct genus of carnivorous plants}} |
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{{Taxobox |
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{{Speciesbox |
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| name = ''Droserapites'' |
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| image = |
| image = |
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| image_alt = |
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| status = fossil |
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| genus = Droserapites |
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| species = clavatus |
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| divisio = [[Magnoliophyta]] |
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| classis = [[Magnoliopsida]] |
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| parent_authority = [[Tseng-Chieng Huang|Huang]] (1978)<ref name=Huang>Huang, Tseng-Chieng 1978. {{cite web|url= http://ejournal.sinica.edu.tw/bbas/content/1978/1/bot191-07.PDF |title=Miocene palynomorphs of Taiwan. II. Tetrad grains. }} ''Botanical Bulletin of Academia Sinica'' '''19''': 77–81.</ref> |
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| ordo = [[Caryophyllales]] |
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| synonyms = |
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| familia = [[Droseraceae]] |
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| synonyms_ref = |
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| genus = '''''Droserapites''''' |
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| subdivision_ranks = [[Species]] |
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| subdivision = |
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*''Droserapites clavatus''<br><small>Huang (1978)</small> |
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'''''Droserapites''''' is a [[genus]] of [[extinction|extinct]] [[plant]]s of somewhat uncertain [[Droseraceae|droseracean]] affinity. |
'''''Droserapites''''' is a [[genus]] of [[extinction|extinct]] [[plant]]s of somewhat uncertain [[Droseraceae|droseracean]] affinity. It is a [[Form classification|form taxon]] known only from fossil [[pollen]]. |
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''Droserapites'' pollen grains are united in [[Tetrad (meiosis)|tetrads]] (groups of four). Individual grains are [[Pollen#Structure|inaperturate]]. The [[exine]] is mixed with dense, [[wikt:superposed|superposed]] [[clavate]] and [[wikt:baculate|baculate]] processes, whereas the [[wikt:sexine|sexine]] is [[wikt:reticulate|reticulate]].<ref name=Huang /> |
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Fossil [[pollen]] of ''D. clavatus'' was found in [[Miocene]] formations of [[Taiwan]]. It is "tetrad, inaperturate, with clavate, baculate and gemmate processes", and matches that of [[extant taxon|extant]] ''[[Drosera]]'' in morphology.<ref>Song, Z.-C., W.-M. Wang & F. Huang 2004. [http://www.bioone.org/perlserv/?request=get-document&doi=10.1663%2F0006-8101(2004)070%5B0425%3AFPROEA%5D2.0.CO%3B2 Fossil Pollen Records of Extant Angiosperms in China.] ''The Botanical Review'' '''70'''(4): 425–458.</ref> |
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Pollen of ''D. clavatus'' has been found in the [[Miocene]] [[Peliao Sandstone]] of [[Taiwan]].<ref name=Huang /> It generally matches that of [[extant taxon|extant]] ''[[Drosera]]'' in morphology.<ref>Song, Z.-C., W.-M. Wang & F. Huang 2004. Fossil pollen records of extant angiosperms in China. ''The Botanical Review'' '''70'''(4): 425–458. {{doi|10.1663/0006-8101(2004)070[0425:FPROEA]2.0.CO;2}}</ref> In his formal description of the genus, Tseng-Chieng Huang suggested that ''Droserapites'' may be related to ''[[Droseridites]]'' and ''[[Quadrisperites]]''.<ref name=Huang /> |
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The tetrads of ''D. clavatus'' are tetrahedral and 34–40 [[micrometre|μm]] in diameter. Individual grains are [[wikt:subspheroidal|subspheroidal]] and measure 18–25 μm in width. They have a roughly circular [[wikt:amb#English|amb]] that is abruptly acute at the distal pole. The exine is 0.5–1 μm thick, with 2–3 μm long clavae or bacula.<ref name=Huang /> |
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==References== |
==References== |
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{{ |
{{Reflist}} |
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{{CarnivorousPlants}} |
{{CarnivorousPlants}} |
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{{Taxonbar|from=Q5308569}} |
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[[Category:Droseraceae]] |
[[Category:Droseraceae]] |
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[[Category: |
[[Category:Extinct carnivorous plants]] |
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[[Category:Prehistoric |
[[Category:Prehistoric angiosperm genera]] |
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[[Category:Miocene |
[[Category:Miocene plants]] |
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[[Category:Fossil taxa described in 1978]] |
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{{paleobotany-stub}} |
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{{droseraceae-stub}} |
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Latest revision as of 19:32, 27 October 2022
| Droserapites Temporal range:
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Droseraceae (?) |
| Genus: | †Droserapites Huang (1978)[1] |
| Species: | †D. clavatus
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| Binomial name | |
| †Droserapites clavatus Huang (1978)
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Droserapites is a genus of extinct plants of somewhat uncertain droseracean affinity. It is a form taxon known only from fossil pollen.
Droserapites pollen grains are united in tetrads (groups of four). Individual grains are inaperturate. The exine is mixed with dense, superposed clavate and baculate processes, whereas the sexine is reticulate.[1]
Pollen of D. clavatus has been found in the Miocene Peliao Sandstone of Taiwan.[1] It generally matches that of extant Drosera in morphology.[2] In his formal description of the genus, Tseng-Chieng Huang suggested that Droserapites may be related to Droseridites and Quadrisperites.[1]
The tetrads of D. clavatus are tetrahedral and 34–40 μm in diameter. Individual grains are subspheroidal and measure 18–25 μm in width. They have a roughly circular amb that is abruptly acute at the distal pole. The exine is 0.5–1 μm thick, with 2–3 μm long clavae or bacula.[1]
References
[edit]- ^ a b c d e Huang, Tseng-Chieng 1978. "Miocene palynomorphs of Taiwan. II. Tetrad grains" (PDF). Botanical Bulletin of Academia Sinica 19: 77–81.
- ^ Song, Z.-C., W.-M. Wang & F. Huang 2004. Fossil pollen records of extant angiosperms in China. The Botanical Review 70(4): 425–458. doi:10.1663/0006-8101(2004)070[0425:FPROEA2.0.CO;2]
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