[APD] Re: Water Sprites

["James Purchase" <jppurchase at sympatico_ca>]

Richard Sexton wrote:

">C. cornuta is what is commonly available in the lfss in my
> neck of the woods, and C. thalictroides is actually harder
> to come by. However, I imagine this varies from place to
> place.

What happened to the C. sillquosa (sp?) name for the fine leaved
one?"

The taxonomy of the Ceratopteris genus is a mess. There is no general 
agreement as to the number of species/varieties, and even some question as 
to the actual family the genus belongs to.

Most scientific/botanical supply houses sell spores of C. richadii for use 
in highschool biology/botany classes. This species has stiff, almost 
"needle-like" fronds, which grow emersed, and resembles the "C. sillquosa" 
name used in most aquarium literature.

What the actual truth is is beyond me, I just enjoy the plants.

James Purchase
Toronto 

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