If I was familiar with Proust's "La Memoire du Temps Perdu / Un amour de Swann", the other authors' quotes are new to me.
Did you find them with a Google query ?
You could find additional quotes by Colette and Huysmans in a book (actually an exhibition catalogue) titled "Vanilles & Orchidees".
I presume you are familiar with the book written by Luigi Berliocchi, "The Orchid in Lore and Legend".
The author discusses the place of orchids "in the arts from literature and magic to cuisine"...
see :
http://www.timberpress.com/books/isbn.cfm/0-88192-616-7
******* Regards,
Viateur
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