197 
PERU or ÉCUADOR. 
Introduced by Messrs. F. Sander & Co., and flowered in their 
establishment in October last. Sepals nearly white at the base. 
brown-purple towards the apex, and spotted with dark purple- 
brown ; lip yellow, margined with purple at the base 
214. Maxillaria dichroma, Rolfe, ad M. venustam, Lindl., 
accedit, recedit floribus multo minoribus. 
Folia oblongo-lanceolata, acuta, 11- 12 poll. longa, 20 lin. lata, 
basi angustata, conduplicata. Scapi 6 po ongi, vaginis 
spathaceo-lanceolatis acutis carinatis laxis subimbricatis vestiti, 
Bractea  spathaceo-lanceolata, acuta, carinata, 18 lin. longa 
Sepala 14 poll. longa, posticum lanceolato-oblongum, acutum, 
eviter carinatum, lat eralia triangulari-oblonga, acuta, dissi 
Petala triangulari-oblonga, acuta, subfalcata, 1-1} poll. longa. 
Labellum obovato- oblongum, 7-9 lin. longum, apice obscure 
ri m lateralibus subrepandis, intermedio rotundato 
apieulo recurvo instructo, disco copiose farinaceo medio callo 
transverso obtusissimo instructo. Columna crassa, 4 lin. longa. 
Mentum late conicum, 7 lin. longum. 
PERU or ECUADOR. 
Introduced by Messrs. Sander & Co., of St. Albans. Flowers 
white, with the basal half of the petals veined and suffused with 
light purple; lip margined with yd same colour. An albino of 
the species has since flowered at St. Albans. This and the 
preceding species were d together with .Mazillaria 
sanderiana, Rchb. f. 
215. Trichocentrum alatum, Rolfe; ad T. fuscum, Lindl., 
mine f recedit floribus minoribus, petalis et labello multo 
atioribus 
Plsudobutbs suborbiculari-oblongi, 2-3 lin. longi. Folia 
ee nga, acuta, canaliculata, valide us 3} "A 
3-34 lin. lata. Pedunculi breves, uniflori. Bra 
lanceolato-ovater, acute, 3 lin. longe. Pedicelli Sotona, 
10-12 lin. longi. Sepala lanceolato-ovata, acuta, subcarinata, 
7 lin. longa, 23 lin. lata. Petala obovato-oblonga, obtusa, 6) lin. 
lin. lata. Labellu'n orbiculari-obovatum, retusum, 
longe cal caratum, 8 lin. longum, 64 lin. latum. Calcar 10 lin. 
longum, attenuatum. Columna lata, 1j lin. longa, alis late 
oblongis subintegris. 
COLOMBIA : Millican. 
Flowered in the piede es of Sir Trevor Lawrence, Bart., 
June, 1895, Flowers white, except the fet two-thirds of the 
lip, which is deep yellow with seven light red veins along 
the centre, and the spur, which is yellowis ^n : 
216. Oncidium ($Restratm) gracillimum, Rolfe; ad O. luteum, 
Rolfe, accedit, recedit labello multo angustiore bifido. 
Pseudobulbi ovoideo-oblongi, subcompressi, 3 ames oum H poll. 
lati, apice diphylli. Folia li neari-lanceolata, a cuta, 7-8 poll. 
longa, 11 lin. lata. Panicula ampla, ramosissima, 3 ped. longa ; 
rami graci] es, 6-9 poll. longi. Bractew lanceolato-oblongæ, acute 
