Re: [Sansevierias] More Ton's pictures.

At 10:20 AM 3/18/2014, you wrote:
>
>
>You mention the word  "tropical" in association with Sansevierias 
>which points up something I was reading a while ago that shows the 
>diversity of this genus. My article was stating that the flat leafed 
>sansevierias (like the trifasciatas, masonianas, etc) seem to range 
>in the tropical regions (give or take), while the more desert like 
>environments are home to the round-leafed varieties with the round 
>leaves helping to conserve moisture. These things are interesting to me.



this is true in the whole of the plant world. consider that the 
cylinder has the smallest surface area ratio to volume of any shape. 
thus the cactus is often a sphere or a cylinder, whereas jungle 
plants often have huge leaf surface in relation to their volume.

herm



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