Data/hora: 03/06/2024 04:58:34

Provedor de dados: 	Nature Precedings	
País: 	United Kingdom	
Título: 	The Earliest Perfect Flower	
Autores: 	Xin Wang; Shaolin Zheng.	
Data: 	2007-11-15	
Ano: 	2007	
Palavras-chave: 	Ecology; Evolutionary Biology.	
Resumo: 	Despite of angiosperms in the Yixian Formation (&amp;#x3e;125 Ma, early Cretaceous), there is no perfect flower typical of angiosperms to date. Here we report _Euanthus dilaensis_ gen. et sp. nov as the earliest perfect flower known to date. The flower includes tepals, androecium and gynoecium. The anthers are globose in form, with bristles atop and in situ round-triangular pollen grains. The gynoecium is composed of probably two carpels with plumose stigmas and a carpel-enclosing receptacle. The discovery of _Euanthus_ increases the diversity of early angiosperms, and indicates that perfect flowers occurred as early as 125 Ma ago.&amp;#xd;&amp;#xa;	
Tipo: 	Manuscript	
Identificador: 	http://precedings.nature.com/documents/1320/version/1

oai:nature.com:10101/npre.2007.1320.1

http://hdl.handle.net/10101/npre.2007.1320.1	
Fonte: 	Nature Precedings	
Fonte: 	Creative Commons Attribution 3.0 License