U. livida or U. sandersonii?

[Gexx]

Hey all, ive got an Utric that needs ID'd. i know its either U. livida or U. sandersonii. I was hoping you all could help me choose which it is.

here are some pics. no flowers unfortunately, but these leaves are new growth (not sure if that matters).

http://www.flickr.com/photos/97451358@N07/11003546823/


Thanks all,
Austin

 

[Lil Stinkpot]

It's too close to tell. We'll have to wait for flowers, I think. It could be U. livida, but it also could be slightly etiolated U. sandersoniii.

 

[hcarlton]

Livida. It looks identical to my clone. However, flowers are really the only sure-fire way of knowing.

 

[Cindy]

I have leaves like that in a pot of sandersonii and I am pretty sure I don't have livida in my collection. Seems to be a response to low light.

 

[mobile]

The leaves don't look like any Sandersonii I have grown.

Here's mine:

 

[Gexx]

i am leaning towards livida until i have a flower for sure. we have both in the greenhouse at work, and this was some random bunch of it growing in that general area.

Cindy- they were shaded in their area in the greenhouse. now they are under 4 grow lights and putting out some new leaves, so we will get better leaf ID in a few days.

any recommendations on getting them to flower? they are in 80 degrees F, 80%humidity in a chopped sphagnum substrate that is water logged most the time. they are in a container with U. gibba.

Any tips would be great!

 

[Tanukimo]

I've heard that making the plants experience seasonal changes such as temperature swings or changing the photoperiod can induce Utricularia to flower. Also, I think a few species flower in response to changing water levels such as sandersonii.

 

[Cindy]

Flowering is sporadic for me as I live in year round warm terrarium. LOL

From literature, it seems that they tend to flower when the plant has "filled" up the pot and there is a sudden change in water level i.e. barely moist and then flooding.

 

[NatchGreyes]

More likely livida.