Category: Cattleya Alliance

LAELIA SPECIOSA: Difficult Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Almost impossible to flower it north of Mexico because of lack of year-round sun and a long dry season; try it on bark, high up, with absolutely no spray of water from October to April; fertilize o... Read More

LAELIAS: Hereditary Influences

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In breeding, they have dominant characteristics; refer to A60-14 Read More

SOPHRONITIS: A Problem Genus

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Re-establishing newly received plants is best done by placing them in a cool, moist well-shaded location; after rooting give fairly good light. A64-872 Read More

SOPHRONITIS COCCINEA: Hereditary Influences

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In breeding it has many dominant traits; refer to A60-15 Read More

SOPHRONITIS COCCINEA: Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cultural direction: grow it on osmunda or sphagnum moss and fine tree-fern; give it high humidity and keep it growing; keep the potting medium moist but well drained; give it half shade in cattleya... Read More

CATTLEYAS, BIFOLIATES: Change to Unifoliates

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Seedlings often show bifoliate ancestry but mature and flower as unifoliates. A84-1182; A87-950 Read More

CATTLEYAS, BIFOLIATES: Breeding

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Bifoliate yellows, bronzes and greens from Brazil, especially the importance and place of C. aclandiae, granulosa, velutina, forbesii; their pros and cons in breeding; habitats and cultivation in f... Read More

CATTLEYAS, BIFOLIATES: Breeding for Whites

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If two whites are crossed and one has a C gene and the other an R gene the progeny will all be purple. F86-172 Read More

CATTLEYAS, BIFOLIATES: Bud Drop

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Can be caused by temperature too low for proper development or by a shortage of water, or by the presence of ethylene at a concentration of one part per million or more. OR82-101 Read More

CATTLEYAS, BIFOLIATES: Bud Rot in Sheath

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Caused by rise of amount of moisture in the sheath through excessive watering practice, or a rapid chamge in the temperature such as is caused by the winter sun in a cold greenhouse. F87-123 Read More