98 



DICOTYLEDONS 



\ 



I ,> 



student nicay tind another species 

 of the same genus fhat grows 

 in many paddj-tield'-s. It is a 

 lovely, blue-blossomed twiner, 

 named Utricularia reticulata, 

 with a few 

 inconspicuous 

 leaves, which 

 sinks its roots 

 into the soft 

 mud of the 

 r i c e - f i e 1 d . 

 Take it out 

 very carefully, 

 wash away the 

 mud, and exa- 

 • mine it. Then 

 you will lind 

 little knobs, 

 here and there, 

 of the size of a 

 pepper corn or a 

 little smaller. 

 These knobs are 

 the traps. They 

 are hollow blad- 

 ders with an opening, 

 surrounded by a few 

 hairs, and sh\it by a 

 valve (tig. 93, K) that 

 opens towards the in- 

 terior. Little snails 

 and crustaceans that 

 happen to seek shel- 



Fiff. 9:3.-1. A tioworiii;; brnncli of tlio IJlad.lerwort . Kl«rl/lnvo 



a:iricnlanaslellaris),\n.inr.^.^^o. .. Trap a. toriU theSC bladdciS. 



seen from without. :J. Vertical SP<'tion of the trap ^,.^j^ easily enter, guided 



(10 times enlarged), /i. Valvo. U'. Alxitmont. " ,„.„„.4.i,c' af 



Two water animals are imprisoned in bladder 3. by SpCCial glOWthS at 



