Lutea is a variety of Gloriosa superba. I think I'm correct in saying the most commonly grown one is Gloriosa superba Rothschildiana.

I know of nurseries in the UK sell them, but that isn't of much help to you, sorry.

JoanMary:
I saw that Bulbmeister has some different gloriosas for sale.
Lucky you to have the climate where they can be grown in the ground.

Here is a link that might be useful: Gloriosa

DeeDs1 and squirrelspur. Thanks for the info. Some lovely pics here but some name confusion:

http://www.cactuskalimpong.com/bulbs.html Yellow:
:ÂLemon drops and
Lutea

http://www.cactuskalimpong.com/gloriosa.html( http://www.cactuskalimpong.com/gloriosa.html):
:Rothschildiana
ÂdwarfÂ
ÂEnchantreÂ
ÂFlameÂ
ÂSuntset skyÂ

http://translate.google.com/translate?hl=en&sl=de&u=http://www.schues-nordstroem.de/gloriosa.htm&prev=/search%3Fq%3Dgloriosa%2Bsuperba%2B%2527plantii%2527%26hl%3Den%26lr%3D%26rls%3DGGLD,GGLD:2004-52,GGLD:en
:Yellow: Synonymously: Gloriosa simplex L; Gloriosa plantii Loud.; Gloriosa virescens Lind. ?????lutea???

http://images.google.com/images?q=Gloriosa+superba&hl=en&ie=ISO-8859-1&oe=ISO-8859-1&sa=N&tab=wi
:Gallery pics of G. Superba Very different, all under ÂsuperbaÂ!

http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/vines/gloriosa.html:
:Superba  Rothschildiana???

Hi,

I was just searching around killing time instead of working on lectures and saw this post!! I show a half-dozen Gloriosa superba cultivars on my web site (carsnoii, greenii, plantii, lutea, rothschildiana, oriental super). There are also pink and white cultivars out of Japan which are either just new to the market or will be coming on soon, but I do not know of anyone selling them as of yet. They are pretty vines :o) Dan

Saw this growing in a roadside flower boutique in Amsterdam, I think I recall the label saying it was a Rothschildiana, as you can see it has a lot more pink in the blooms than straight Gloriosa superba