>I want to know something about Capsella bursa-pastoris. What did you mean
>with "supposedly carnivorous"? The seedlings are carnivorous? Sound's very
>interesting. Are any literature available?
See e.g.  the paper by John T. Barber in Carniv.  Plant Newsletter Vol. 
7(2):39-42 (June 1978).  There you'll find several additional
references.  In the named paper there is a nice picture showing Culex
pipiens larvae attached to a Capsella seed. 
Kind regards   Juerg
___________________________________________________
Juerg Steiger, Institut fuer Aus-, Weiter- und Fortbildung  IAWF
University of Bern, Inselspital 37a, CH-3010 Bern, Switzerland
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