Category: Cattleya Alliance

CATTLEYAS: Reasons for Non-flowering

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Some leads do not flower under good cultural conditions; a high percentage of them result from too high night temperature; or, from crowding, shrivelled growth from improper watering and root loss,... Read More

CATTLEYAS: Seedlings Received with Stems Black or with Brown Streaks

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For details of treatment refer to A73-326; spray heavily with Truban 1 tpg.; not a virus disease. A73-991 Read More

CATTLEYAS: Tetraploids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Can be identified by the thick succulence of their leaves and their sharp edges. ODA78(1)23 Read More

CATTLEYAS: Unifoliate Sometimes Grown Bifoliate and Even Trifoliate

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Depends on culture and environment; better conditions stimulate bifoliate leads; wrong temperatures and long periods of light inhibit flower initiation. A70-916 Read More

CATTLEYAS: Yellow Flowers Show Crippling

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Lineage is more responsible than environment; some yellows vary from year to year, and from stem to stem. A76-1102 Read More

LAELIAS: Cold-tolerant Hybrids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Not all of them are cold-tolerant, as for out-of-doors conditions but many species can be grown with cymbidiums, above all the favorite L. anceps; for details and names refer to OA82-134 Read More

LAELIAS: Rupiculous Types

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Leaves should have a red tinge by being exposed to very bright light; they grow on mountain tops on rocks in full sun in winter and slight shade in summer; they need good air circulation; nightly d... Read More

ENCYCLIA MARIAE: Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago As for cattleyas; potting medium recommended is osmunda, or 65% fir bark, 20% German peat moss (coarse) and 15% redwood bark fiber. A72-905 Read More

EPIDENDRUM NOCTURNUM: Variability

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Genetically it is one of the most variable and widespread in America. A77-888,893 Read More

EPIDENDRUM STAMFORDIANUM: Inflorescence From Apex Rather Than Base of Pseudobulb

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is abnormal; but abnormal spiking occurs infrequently with many species. A71-153 Read More