iilil'onnibus dense oniurn, 
foraii crisris L7 ornato. 
utriinpie aagulata. 
Andes. 
Flowered in the collectioa of Frau Ida Brandt, Zurich, in 
November, 1899. The lower halves of the sepals and petals are 
ivory white, and the upper parts reddish maroon. The lip is 
white, the tresis, tubercles, and column maroon. The three 
central crests of the callus are longer than the others, the median 
one extending to the base in a narrow keel, while on either 
margin a row of small teeth extend to the base, as in P. dor- 
ma nian-a, Rchb. f., which however is different in shape and 
colour. 
260. Colax tripterus, Rolfe ; affinis C. plamathem, Lindl., sed 
ovario triptero et labelli disco callo lato carnoso instructo differt. 
Folia lanceolat i. u amin ita, plicata, 4 poll, longa. Scapi erecti, 
4 poll, longi, biflori. Bractece ovato-lanceolatae, acuminata, 
|-1 poll, longae. Ovarium pedicellatum, 1 poll, longum, alis 
tribus angustis instructum. Sfpuhi oblong;i, apiculata, 11-14 lin. 
longa. Petala oblonga, sepalis snb;e<jiialia. Lain Hum trilobum, 
10-12 lin. longum, basi breviter uuiniicnlatum, lobis lateralibus 
erectis oblongis obtusis enrvatis, lobo intermedio orbiculari- 
elliptico, disco callo lato carnoso instructo. Golumna clavata, 
8 lin. longa, angulaia, facie carinata ; alae angulatae minute 
crenulatae. 
Brazil. 
Flowered in the Royal Botanic Gardens, Glasnevin, in June, 
189b, having been received as Colax jta/osa.^ Lindl. The sepals 
and petals are light green, the former unspotted and the latter 
densely speckled with dark brown, and ihe lip yellowish white 
with lines of minute light purple dots on the fleshy disc. 
