Cryptocoryne crispatula Engler var. planifolia H. Zhou. H.W. He & N. Jacobsen

It was a great surprise in January 2010 when Hang He Wei and Zhou Hang found a new Cryptocoryne in the Guangxi province in S China. Apparently it belongs to the crispatula group, according to the spathe, but with its long and broad smooth leaves with a red lower side if differs from all known varieties.

Click on the picture to get the full image (ca 50 k)

The upper stream with shallow water
coll. Zhou ZH2010-01
photo Zhou
... depth ca 20 cm with a gravel bottom, half shaded.
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photo Zhou
The lower stream with a more muddy bottom. Partly sunny.
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photo Zhou
Flowering abundantly in January with a white spathe.
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photo Zhou
       
Spathe length up to 30 cm.
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photo Zhou
Fully white in- and outside.
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photo Zhou
An emersed specimen with shorter leaves.
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photo Zhou
A submerged plant with a clear red lower side of the leaves.
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photo Zhou
       
A submerged growing plant ...
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photo Zhou
... the lower side red, ...
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photo Zhou
... idem, with more narrow leaves...
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photo Zhou
... lower side of the leaves.
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photo Zhou
       
The half shaded stream is a contribute to a bigger river. In that river, at ca 20 m from the stream with var. planifolia, grows var. flaccidifolia (right in the picture) in full sun.
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photo Zhou
An immature fruit of var. planifolia.
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photo Zhou
Length section of the kettle showing the spadix with the male flowers (top) and female flowers (bottom). Note the reddish top half of the kettle.
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photo Zhou
Distribution of C. crispatula var. planifolia in the Guangxi province, S. China. Up to now there is only one record for this plant.
       

Water parameters indicate that var. planifolia may be suited for a cool aquarium, temperature ca. 20 C.

Updated December 2010

See the Crispatula group for an overview and for literature.