The following article was written for the Orchid Species Bulletin published by the Orchid Species Society, which is based in Brisbane, Queensland in July 2002 and was updated in September 2009.
Bear in mind that any cultivation notes refer to the sub-tropical conditions of Southern Queensland, Australia.
Alaticaulia
echo Luer
(Luer)
was first described by Carlyle Luer as Masdevallia
echo in Phytologia in 1978. This
species was given its name from the Greek mythological nymph Echo who was known
for her repetitious voice, in reference to the confusing similarity to Masd.
infracta Lindl.
Endemic to
With the use of DNA data analysis, Carl Luer
transferred Masd. echo to Alaticaulia in Icones
Pleurothallidinarum in 2006. A
large genus, the species of Alaticaulia were previously included in Masdevallia
subgenus Polyantha, section Alaticaules and section Polyanthae.
Alaticaulia have thickly
leathery leaves and multiflowered racemes with a peduncle that is round or
triangular in cross-section. The
flowers may be produced successively or simultaneously. A
cup or tube with tails is formed by the joining of the base of the sepals.
Usually the petals have a rounded basal callus and a callus along the
lower half.
Altc.
echo
is a medium to large plant with clustered stout erect ramicauls (pleurothallid
stems) that are
1-2 cm long, which are enclosed by 2-3 tubular sheaths.
Each ramicaul has a narrow elliptical-oblong leaf that is 10-20 cm long
and 1.8-2.8 cm broad. Erect
inflorescences that are triangular in cross-section are produced from the base.
They are 15-30 cm long, equalling or surpassing the leaves.
Several single flowers are borne in succession at the apex.
The flowers may be produced over several seasons so don't cut the
inflorescences until they have yellowed or withered.
The flower of Altc.
echo has the dorsal sepal partially joined along the basal half to the
partly joined lateral sepals, forming a sub-orbicular sepaline tube or
bell-shaped cup. The lateral caudae
or sepaline tails are joined together. Olive
green in colour, the sepals are suffused with red-purple especially on the inner
surface. The small oblong white
petals are flecked with purple and the oblong-subpandurate, white to yellow lip
is spotted with purple.
Found in the Peruvian mountains
between 2,000-2,700 m altitude, Altc..
echo is an intermediate to cool grower that seems to be somewhat warmth
tolerant. Shading of 70-80%, high
humidity and good air circulation seem to be ideal.
Altc.. echo will survive hot
subtropical summer conditions if high humidity can be maintained and air
movement is good. Use of fans in
summer may be helpful if air movement is inadequate.
A small pot with a well-drained, moisture-retentive medium is
recommended. Fine bark, sphagnum or
a peat/perlite combination would all be suitable mixes. Regular
repotting each year or at most every two years will ensure that the root system
is kept happy. In winter, plants can
be kept somewhat drier but need to be kept evenly moist at the roots.
A minimum of 12oC is recommended for winter.