Two Angiosperm Reproductive Organs from the Early Cretaceous of China

Abstract

Abstract: Two fossil reproductive organs of early angiosperms were collected from the Yanji Basin, Jilin Province of China. The assemblage of fossil plants consist mainly of pteridophytes, gymnosperms and a few angiospoermms. The present paper only reports the two reproductive organs of angiosperms. They are Archimagnolia rostrato-stylosa gen.et sp. nov., Eucommioites orientalis sp.nov. The first is a slightly elongated floral axis(receptacle), with about 20 carpels helically arranged. The carpels are free from each other and attenuated into a beak-like structure at the apex, with the base inserted into the receptacle. A comparison with living plants indicated its close relationship with some members of the Magnoliaceae. The second is a samara, similar to a fruit of the genus Eucommia, narrow-oblong, 2-lobed at the apex with the lobes stigmatic on theinner side. The seed is situated at the middle of fruit, oblong in shape.

Key words: Reproductive organs, Angiosperm, Early Cretaceous

Tao Jun‐Rong, Zhang Chuan‐Bo. Two Angiosperm Reproductive Organs from the Early Cretaceous of China[J]. J Syst Evol, 1992, 30(5): 423-426.

[1]	Julian R. Starr, Pedro Jiménez‐Mejías, Alexandre R. Zuntini, Étienne Léveillé‐Bourret, Ilias Semmouri, Muthama Muasya, William J. Baker, Grace E. Brewer, Niroshini Epitawalage, Isabel Fairlie, Félix Forest, Izai A. B. Sabino Kikuchi, Lisa Pokorny, and Isabel Larridon. Targeted sequencing supports morphology and embryo features in resolving the classification of Cyperaceae tribe Fuireneae s.l. [J]. J Syst Evol, 2021, 59(4): 809-832.
[2]	Isabel Larridon, Alexandre R. Zuntini, Étienne Léveillé‐Bourret, Russell L. Barrett, Julian R. Starr, A. Muthama Muasya, Tamara Villaverde, Kenneth Bauters, Grace E. Brewer, Jeremy J. Bruhl, Suzana M. Costa, Tammy L. Elliott, Niroshini Epitawalage, Marcial Escudero, Isabel Fairlie, Paul Goetghebeur, Andrew L. Hipp, Pedro Jiménez‐Mejías, Izai A.B. Sabino Kikuchi, Modesto Luceño, José Ignacio Márquez‐Corro, Santiago Martín‐Bravo, Olivier Maurin, Lisa Pokorny, Eric H. Roalson, Ilias Semmouri, David A. Simpson, Daniel Spalink, W. Wayt Thomas, Karen L. Wilson, Martin Xanthos, Félix Forest, and William J. Baker. A new classification of Cyperaceae (Poales) supported by phylogenomic data [J]. J Syst Evol, 2021, 59(4): 852-895.
[3]	Divya B., Ramesh B.R., and K. Praveen Karanth. Contrasting patterns of phylogenetic diversity across climatic zones of Western Ghats: A biodiversity hotspot in peninsular India [J]. J Syst Evol, 2021, 59(2): 240-250.
[4]	Michelle L. Gaynor, Chao‐Nan Fu, Lian‐Ming Gao, Li‐Min Lu, Douglas E. Soltis, and Pamela S. Soltis. Biogeography and ecological niche evolution in Diapensiaceae inferred from phylogenetic analysis [J]. J Syst Evol, 2020, 58(5): 646-662.
[5]	Xiao‐Chen Yang, Mo‐Han Hu and Shuang‐Quan Huang. Airborne conifer pollen grains are rarely deposited on stigmas of coflowering insect‐pollinated angiosperms [J]. J Syst Evol, 2020, 58(3): 331-338.
[6]	Joseph T. Miler, Garry Jolley‐Rogers, Brent D. Mishler, and Andrew H. Thornhill. Phylogenetic diversity is a better measure of biodiversity than taxon counting [J]. J Syst Evol, 2018, 56(6): 663-667.
[7]	Aarón Rodríguez, Arturo Castro‐Castro, Georgina Vargas‐Amado, Ofelia Vargas‐Ponce, Pilar Zamora‐Tavares, Jesús González‐Gallegos, Pablo Carrillo‐Reyes, Marco Anguiano‐Constante, Marco Carrasco‐Ortiz, Miguel García‐Martínez, Brandon Gutiérrez‐Rodríguez, Juvenal Aragón‐Parada, Christian Valdes‐Ibarra and Guadalupe Munguía‐Lino. Richness, geographic distribution patterns, and areas of endemism of selected angiosperm groups in Mexico [J]. J Syst Evol, 2018, 56(5): 537-549.
[8]	Wei Wang, David L. Dilcher, Ge Sun, Hong‐Shan Wang, Zhi‐Duan Chen. Accelerated evolution of early angiosperms: Evidence from ranunculalean phylogeny by integrating living and fossil data [J]. J Syst Evol, 2016, 54(4): 336-341.
[9]	Zhi‐Yuan Du, Qing‐Feng Wang, China Phylogeny Consortium. Phylogenetic tree of vascular plants reveals the origins of aquatic angiosperms [J]. J Syst Evol, 2016, 54(4): 342-348.
[10]	Ting Zhang, Chun‐Xia Zeng, Jun‐Bo Yang, Hong‐Tao Li, De‐Zhu Li. Fifteen novel universal primer pairs for sequencing whole chloroplast genomes and a primer pair for nuclear ribosomal DNAs [J]. J Syst Evol, 2016, 54(3): 219-227.
[11]	Hong QIAN, Jian ZHANG. Using an updated time-calibrated family-level phylogeny of seed plants to test for non-random patterns of life forms across the phylogeny [J]. J Syst Evol, 2014, 52(4): 423-430.
[12]	Syed Mudassir JEELANI, Santosh KUMARI, Raghbir Chand GUPTA. Meiotic studies in some selected angiosperms from the Kashmir Himalayas [J]. J Syst Evol, 2012, 50(3): 244-257.
[13]	Qiang ZHANG,Alexandre ANTONELLI,Taylor S. FEILD,Hong‐Zhi KONG. Revisiting taxonomy, morphological evolution, and fossil calibration strategies in Chloranthaceae [J]. J Syst Evol, 2011, 49(4): 315-329.
[14]	Jing YU, Jian‐Hua XUE, Shi‐Liang ZHOU. New universal matK primers for DNA barcoding angiosperms [J]. J Syst Evol, 2011, 49(3): 176-181.
[15]	Yin‐Long QIU, Libo LI, Bin WANG,Jia‐Yu XUE, Tory A. HENDRY, Rui‐Qi LI, Joseph W. BROWN, Yang LIU, Geordan T. HUDSON, Zhi‐Duan CHEN. Angiosperm phylogeny inferred from sequences of four mitochondrial genes [J]. J Syst Evol, 2010, 48(6): 391-425.

Two Angiosperm Reproductive Organs from the Early Cretaceous of China

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments