ORCHIDACEAE QUAEDAM AMERICANAE 
middle, ovate, acuminate, acute, fleshy, prominently 9-11- 
nerved, some of the nerves forked or branching. Column 
5 mm. long, fleshy, with a rounded tooth at the summit in 
front of which a membranous obcuneate ligule is situated. 
Closely allied to Epidendrum abbreviatum Schltr., but 
with larger flowers and differently shaped perianth segments. 
Guatemala, Department of Alta Verapaz, Finca 
Mocca, Harry Johnson 141, December 15, 1919. (Type 
in U. S. Nat. Herb. No. 1014699. Fragment of type in 
Herb. Ames No. 22528.) 
Epidendrum Pittieri Ames sp. nov. Caules rigidi, 
polyphylli. Folia disticha, ovali-oblonga. Flores in racemo 
laxo dispositi. Labellum trilobatum, lobis lateralibus semi- 
orbicularibus, margine denticulatis, lobo medio oblongo, 
margine integro. Discus prope basim bicallosus, longitudi- 
naliter incrassatus per medium. Columna sectionis. 
Stems rigid, 2.5 dm. tall in the type which is incom¬ 
plete, sparingly branched near the tip. Leaves 2.5-3 cm. 
long, up to 11 mm. wide, coriaceous, oval-oblong, acute, 
1.5-2 cm. distant, distichous, persistent on the coriaceous 
cylindrical rough rugose sheaths which conceal the stem, 
mid-nerve prominent beneath, margin slightly revolute in 
dried material. Peduncle with the raceme 6 cm. long, 
terminal, about 7-flowered, floriferous nearly to the base. 
Floral bracts linear-lanceolate, acute, 6-8 mm. long, equalling 
or shorter than the pedicellate ovary. Pedicel and ovary 
7-8 mm. long, non-scabrous. Flowers greenish white, 
fleshy, nervose when dry. Lateral sepals oblong-oblanceo- 
late, L3-L4 cm. long, heavily 3-nerved, acute, apex shortly 
carinate beneath, the carina prolonged into a cusp. Dorsal 
sepal ligulate, 1.3 cm. long, heavily 3-nerved, tapering 
toward both ends, 3.5 mm. wide near the middle. Petals 
linear-spatulate, obtuse, 12.5 mm. long, hardly 2 mm. wide 
near the tip, 3-nerved, the mid-nerve prominent. Labellum 
distinctly 3-lobed, including the column 15 mm. long, 
fleshy; lateral lobes about 4 mm. long from base to sinus 
formed with middle lobe, hardly 3 mm. wide, semiorbicular, 
margin denticulate; middle lobe nearly 4 mm. long, 3 mm. 
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