Flore des serres et des jardins de l’Europe 18: 13 (1869-1870)
L’Illustration horticole 17: 36 (1870)
Notable varieties:
Although alba forms of C. eldorado are more common than usual, the semialba form is quite rare. Semialba C. eldorado are attractive because the white petals seem to accentuate the white fringe around the orange disc in the lip. Albescens and concolor forms of C. eldorado are also much more common than in other Cattleya species. Cattleya eldorado’s extensive range of coloring includes coeruleas, medium lavenders and even dark lavender flowers, some of which are quite gorgeous.
- C. eldorado f. alba ‘Virginalis’ – alba forms are not at all rare in C. eldorado and the alba forms also have some of the largest and best-shaped flowers in the species — another unusual characteristic for this species, this one was described by A. Ducos in L’Illustration Horticole in 1876 as a new species and given the name Cattleya virginalis. This was, of course, later corrected to C. eldorado ‘Virginalis’ but it reflected the unusually fine appearance of the flowers over the ordinary C. eldorado
- C. eldorado f. alba ‘Crocata’ – was pictured in Sander’s magnificent book, Reichenbachia 2 (1890), as an example of an unusually large and well-shaped flower born on a larger than normal plant
- C. eldorado f. semialba ‘Enfieldiensis’ AM/RHS (1900) – exhibited by Mr. H. Low,
- C. eldorado ‘Splendens’ FCC/RHS (1868) – exhibited by Linden
- C. eldorado ‘Glebelands’ AM/RHS (1899) – exhibited by J. Gurney Fowler
- C. eldorado f. albescens – quite common
- C. eldorado f. concolor – quite common
Notable primaries:
- C. Iridescens (C. eldorado x C. bicolor)
- C. Lady Ingram (C. eldorado x C. dowiana)
- C. x brymeriana (C. eldorado x C. violacea)
Unifoliate Cattleyas 
