Puzzles

[Paul T]

Luit,

Arisaema fits that clue, but I don't think that helps.     I'd also thought obscure truffle species, but they aren't bulbous/tuberous.

[rob krejzl]

the famous British Film that this building starred in.

Get Carter?

[Anthony Darby]

the famous British Film that this building starred in.

Get Carter?

Yes, I'm sure he'd know!

[daveyp1970]

Well done Rob.

[Anthony Darby]

Well done Rob.

I'm sure not many people knew that!

[Maggi Young]

Well done Rob.

I'm sure not many people knew that!

I'm prepared to say that I'm sure a LOT of people didn't know that! Never ceases to amze me what the Forumists know 

[Lvandelft]

Luit,

Arisaema fits that clue, but I don't think that helps.     I'd also thought obscure truffle species, but they aren't bulbous/tuberous.

No Arisaema, Paul!

Obviously this puzzle seems to be too difficult. I’ll give it another try.
It is a climbing plant.
The tubers of many members of this genus are edible and grow in the tropics, though this particular one comes from Chile.

[Maggi Young]

Hmmm...... well, it might be a tropaelum.... not one we've seen, of course, or  perhaps a "dutchman's pipe" .... the name escapes me right now..... must be the damp......

I remember... Aristolochia ??


 edit to add..... But aren't Aristolochia poisonous?

[Maggi Young]

Okay.... let's get serious about this...... Chile, tuber....... edible....... must be Liliaceae, I think..... which brings us to Dioscorea .... but which one? Never seen any like this in real life..... 

[Maggi Young]

Only Dioscorea I've  seen have the caudex like elephant feet or fat tortoises.... but I know there are others ... and several in Chile........so  I'm going for Dioscorea... and Ian says he hasn't got a better suggestion!

[daveyp1970]

Could it be an ipomoea

[Lvandelft]

Only Dioscorea I've  seen have the caudex like elephant feet or fat tortoises.... but I know there are others ... and several in Chile........so  I'm going for Dioscorea... and Ian says he hasn't got a better suggestion!

Good thinking Maggi.  It’s indeed a Dioscorea and in this case the tuber is of Dioscorea reticulata.
But very few people would have known which variety was meant 

If necessary my next clue would have been “Yammii” 

[Maggi Young]

Aha!
So, this begs the question, is the tuber in the photograph an underground tuber or a "air potato" ?

[Pascal B]

If necessary my next clue would have been “Yammii” 

Then it is a good thing you said Chile first Luit as Dioscorea occur in many parts in the world so the species name would never have come out... I have eaten the local species in India and it is really enjoyable (if the accompanying curry is not too hot....). Great puzzle.

[Lvandelft]

Aha!
So, this begs the question, is the tuber in the photograph an underground tuber or a "air potato" ?

I was told that this tuber grows underground.

Don't know if this one is used as edible by locals, Pascal