NEW OR NOTEWORTHY ORCHIDS 
since the presence of the two horns above the base of the 
labellum indicated this, but the linear lip-appendage dis¬ 
posed of this suspicion. (Is it not probable that in Lindley’s 
type this process had become broken?) 
In reducing 0. lanuginosus and 0. diceras to 0. bicornis 
I have been influenced by structural resemblances which in¬ 
dicate close relationship. It is true that slight differences in 
the size of the flower are noticeable between 0. lanuginosus 
and 0. diceras, but these differences are accounted for, I 
believe, by growing conditions, and by the point of ma¬ 
turity to which the plants had attained when herbarium 
specimens were prepared. Schlechter describes smaller 
flowers than are present in my specimen of the type number 
of 0. lanuginosus, but it is probable that his material of 
0. diceras, like mine, was taken from a plant in Mr. Powell’s 
garden at Balboa that was just beginning to bloom. 0. 
lanuginosus when collected by Killip was past floral prime. 
Panama, Dr. Sinclair; Veragua, Hinds; Province of 
Panama, edge of forest along Panama-Pecora Road, near 
Tecumen River, Elsworth P. Killip 3314, December 30, 
1917. On trees. 75 meters altitude; Hills east of Panama 
City, C. W. Powell 174. Grows generally in moss on upper 
sides of limbs. Flowers white and green. Flowers November 
to December. Sea level to 500 feet altitude. 
Lockhartia Lankesteri Ames sp. nov. Caules caespi- 
tosi, omnino foliosi. Folia disticha, imbricata, triangularia, 
superne vix vel non decrescentia. Inflorescentiae apicales 
vel paulo infra apicem caulium, pauciflorae, bracteis magnis 
scariosis instructae; rachis quam folia brevior. Bracteae 
cordatae, late ovatae. Sepala lateralia oblongo-elliptica, 
acuta, concaviuscula, valde membranacea, aurantiaca, apic- 
ulo infra apicem. Sepalum dorsale simile, valde concavo- 
cucullatum, trinervium. Petala ovato-elliptica, obtusa, 
trinervia, valde membranacea, aurantiaca. Labellum tri- 
lobatum; lobis lateralibus oblongo-linearibus, obtusis, 
divaricatis, quam lobo medio multo minoribus, mem- 
branaceis; lobo medio obscure quadrilobulato vel sub- 
36 
