Micrairoideae

Micrairoideae
Isachne globosa spikelets
Scientific classification
Kingdom:Plantae
Clade:Angiosperms
Clade:Monocots
Clade:Commelinids
Order:Poales
Family:Poaceae
Clade:PACMAD clade
Subfamily:Micrairoideae
Pilg. (1956)
Tribes

Micrairoideae is a subfamily of the grass family Poaceae, distributed in tropical and subtropical regions.[1] Within the PACMAD clade, it is sister to subfamily Arundinoideae.[2]

It includes roughly 190 species in nine genera. A phylogenetic classification of the grasses recognises four main lineages, classified as tribes. Only species in tribe Eriachneae (genera Eriachne and Pheidochloa) have evolved the C4 photosynthetic pathway.[3]

Phylogeny

Relationships of tribes in the Micrairoideae according to a 2015 phylogenetic classification,[3] also showing the Arundinoideae as sister group:

 

Arundinoideae

 
Micrairoideae

 

Micraireae

 
 

 

Eriachneae

 
 

 

Isachneae

 
 

Hubbardieae

 
 
 
 

References

  1. ↑ Sánchen-Ken, J. Gabriel; Clark, Lynn G.; Kellogg, Elizabeth A.; Kay, Elma E. (2007). "Reinstatement and emendation of subfamily Micrairoideae (Poaceae)". Systematic Botany. 32 (1): 71–80. doi:10.1600/036364407780360102. ISSN 0363-6445.
  2. ↑ Grass Phylogeny Working Group II (2012). "New grass phylogeny resolves deep evolutionary relationships and discovers C4 origins". New Phytologist. 193 (2): 304–312. doi:10.1111/j.1469-8137.2011.03972.x. ISSN 0028-646X. PMID 22115274.
  3. 1 2 Soreng, Robert J.; Peterson, Paul M.; Romschenko, Konstantin; Davidse, Gerrit; Zuloaga, Fernando O.; Judziewicz, Emmet J.; Filgueiras, Tarciso S.; Davis, Jerrold I.; Morrone, Osvaldo (2015). "A worldwide phylogenetic classification of the Poaceae (Gramineae)". Journal of Systematics and Evolution. 53 (2): 117–137. doi:10.1111/jse.12150. ISSN 1674-4918.


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