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Published In: Amoenitates Academici . . . 4: 123, 143. 1759. (Amoen. Acad.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: Rubina Dawar
General/Distribution: A genus of c.50 species, distribution same as that of the family; widely cultivated.
Comment/Acknowledgements: The genus Casuarina L. is now split into 4 small genera viz. Gymnostoma L.A.S. Johnson, Ceuthostoma L.A.S. Johnson, Allocasuarina L.A.S. Johnson and Casuarina L., on the bases of texture of bracts of infructescence, presence or absence of visible stomates and colour of samaras. Casuarina is more closely related to Allocasuarina by having invisible stomates and relatively thin and inconspicuous bracts. However, Casuarina can be differentiated from Allocasuarinas by having grey or yellow-brown samara and bracteoles of infructescence thin and without dorsal protuberance. All our species belong to Casuarina.

 

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Trees or shrubs. Furrows of branchlets deep and narrow. Nodal leaf sheath 6-many-toothed, triangular. Bracts remain thin even in infructescence. Samaras pale grey or yellow-brown, with minute slightly raised wavy lines along the surface.
 

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1 Branchlets glaucous. Nodal leaf-sheaths with 14-17 teeth 2 Casuarina glauca
+ Branchlets pale green - brownish green. Nodal leaf-sheaths with 6-11 teeth (2)
2 (1) Nodal leaf-sheaths with 6-(7)-8 teeth 1 Casuarina equisetifolia
+ Nodal leaf-sheaths with 9-11 teeth 3 Casuarina junghuhniana
 
 
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