CENTRAL AMERICAN ORCHIDS 
ecallose, minutely glandular. Column stout, 2 mm. long, 
dilated upward. 
In habit not unlike Dichaea graminoides (Sw.) Lindl., 
but with a very different labellum. In outline the labellum 
suggests D. Willdenowiana Kranzl., but is characterized by 
an elongated thickened tip. 
Costa Rica, Cascajal, C. H. Lankester K353. Flower 
white, very faintly greenish tinged, with a faint purple stain 
round the edge of the stigmatic surface. (Type in Herb. 
Kew.) 
Campylocentrum Lankesteri Ames sp. nov. Radices 
elongatae, plus minusve complanatae, in sicco longitudinaliter 
sulcatae, albescentes. Caules multo abbreviati, subobsoleti, 
aphylli. Pedunculi quattuor, conferti, paene usque ad 
basim floriferi, erecti. Racemus gracilis, floribus distichis 
instructus. Bracteae flores subtendentes rigidae, patentes, 
concaviusculae, triangulares, acutae, ovarium pedicellatum 
excedentes. Flores minuti, albidi, oblique ascendentes. 
Sepala lateralia oblonga, obtusa, infra apicem apiculata, 
uninervia, membranacea. Sepalum dorsale ovatum, ob- 
tusum, infra apicem apiculatum. Petala elliptico-oblonga, 
obtusa, uninervia, diaphana. Labellum saccatum, in 
laminam trulliformem productum; lamina labelli explanata 
pentagona, abrupte acuta. Saccus scrotiformis. Columna 
incrassata. 
Leafless epiphyte. Roots elongated, becoming whitish 
when dry, spreading, 4-5 cm. or more long, abont 2 mm. 
thick, longitudinally sulcate. Stems snbobsolete. Pednncle 
with the raceme up to 4 cm. high, the raceme itself up to 
3.5 cm. long, slender. Bracts of the raceme about 1 mm. 
long, at right angles to the rachis, rigid, more or less concave, 
triangnlar, acnte, exceeding the pedicellate ovary. Flowers 
distichons, about 2 mm. apart, hardly 3 mm. long, whitish. 
Lateral sepals connivent, abont 2 mm. long, oblong, 1-nerved, 
obtnse, with a short apicule which arises from the thickened 
nerve jnst beneath the tip. Dorsal sepal abont 2 mm. long, 
ovate, 1-nerved, obtuse, apiculate. Petals hardly 2 mm. 
long, oblong, obtuse. Labellum saccate at base, the sac 
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