11. Species and hybrids with star-shaped flowers (narrow petals/sepals) regardless of plant size
12. Species and hybrids with round flowers (wide petals/sepals) and a plant up to 20cm tall
13. Species and hybrids with round flowers (wide petals/sepals) and a plant taller than 20cm

21. Species and hybrids with Nobile-type flowers (clusters of flowers often adorned
         with a dark eye along leafy or leafless canes)
22. Species and hybrids of all other types, plant up to 15cm tall
23. Species and hybrids of all other types, plant taller than 15cm

31. Species and hybrids raised for their leaves (Jewel Orchids, need not be in flower)
32. All other species and hybrids with plant up to 12cm tall
33. All other species and hybrids with plant taller than 12cm

41. Species and hybrids with flowers narrower than 3cm
42. Species and hybrids with flowers wider than 3cm

Paphiopedilum (Cypripedium) Alliance   

51. Phragmipedium species and hybrids
52. Paphiopedilum species and hybrids with more than one flower per stem
    (sequential and multifloral bloomers)
53. All other Paphiopedilum species and hybrids

61. Species of Doritis and Phalaenopsis
62. Hybrids with blotchy and waxy flowers (Harlequin-type)
63. Hybrids with markings tending towards solid
64. Hybrids with solid red or raspberry red flowers
65. Hybrids with solid yellow or art-shade flowers (orange, peach, etc.)
66. Hybrids with flowers narrower than 7cm: solid white, semi-alba
         (white with colored lip) or white with pink blush
67. Hybrids with flowers wider than 7cm: solid white, semi-alba
         (white with colored lip) or white with pink blush
68. Hybrids with flowers narrower than 7cm: solid pink, purple or pink with white blush
69. Hybrids with flowers wider than 7cm: solid pink, purple or pink with white blush
70. Hybrids with striped flowers of any color
71. Hybrids with flowers of any other markings

81. Vanda, Ascocentrum and Ascocenda species and hybrids
82. All other species and hybrids

91. Photography
92. Botanical Art
93. Paintings in various media
94. Fabric Art
95. All other types of Art