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Watch Chain Crassula

crassula lycopodiodes

Description:

Life and mathematics. It looks like tetragonal symmetry (4-fold) but it is not. It is a helicoidal 2-fold axis, i.e., 180 degrees plus 1/2 translation. It is easier to see in picture 4 where half od the "leaves" are parallel and half perpendicular to the view. Crassula is a large genus of succulent plants containing many species, including the popular Jade Plant, Crassula ovata. Crassulas are usually propagated by stem or leaf cuttings. Most cultivated forms will tolerate some small degree of frost, but extremes of cold or heat will cause them to lose foliage and die.

Habitat:

They are native from South Africa (Namibia, Lesotho)

Notes:

Notice that the flowers have pentagonal (5-fold) symmetry

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6 Comments

arlanda
arlanda 11 years ago

Thanks

arlanda
arlanda 12 years ago

They are not so uncommon. You can find them in many houses, they are used as pot plants

Jake Barnes
Jake Barnes 12 years ago

That's so cool and amazing

arlanda
arlanda 12 years ago

Notice that the flowers have pentagonal (5-fold) symmetry!!! See the last picture

arlanda
arlanda 12 years ago

Thanks Karen, you are right. I put it in Life and Mathematics mission but it would fit better in a mission called natural abstract or something similar

KarenL
KarenL 12 years ago

Great photos - natural abstract art!

arlanda
Spotted by
arlanda

Madrid, Comunidad de Madrid, Spain

Spotted on Feb 26, 2012
Submitted on Mar 7, 2012

Spotted for Mission

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