NEW OR NOTEWORTHY ORCHIDS 
angular; anterior portion (middle lobe) semiorbicular, fleshy. 
Disc from the base to a point beyond the middle traversed 
by a median linear-oblong tricarinate callus. Column arcu¬ 
ate, about 10.5 mm. long at the back. 
Maxillaria inaudita var. minor differs from the species 
in its much smaller size, both vegetatively and florally, and 
in its several-sheathed peduncle. 
This plant was described from a single dried specimen. 
Costa Riga, La Fuente, A. Alfaro 241, December 27, 
1925. 1200 meters altitude. Flower white, fragrant. (Type 
in Herb. Ames No. 31189.) 
Maxillaria linearifolia A. & S. sp. nov. Herba alta, 
caulescens, simplex vel ramosa. Caulis foliorum vaginis 
arctis imbricantibus omnino inclusus. Folia lineari-lanceo- 
iata, acuta vel complicato-mucronata, disticha. Inflores- 
centiae axillares, uniflorae. Sepala lateralia lanceolata, acu- 
niinata, cum columnae pede mentum formantia. Sepalum 
dorsale lanceolatum. Petala oblique lanceolata. Labellum 
in circuitu lanceolatum vel ellipticum, prope medium leviter 
trilobatum. 
Plant tall, stout or slender. Roots fibrous, flexuous, 
glabrous, confined to the base of the stem. Stem about 
70-89 cm. long, simple or branched, entirely concealed by 
close, imbricating, distichous leaf-sheaths. Leaves linear- 
lanceolate, 5.4-9.2 cm. long, 4-5 mm. wide near the base, 
gradually narrowed to an acute or complicate-mucronate 
tip, clasping at a sessile base, numerous, chartaceous, mid¬ 
nerve conspicuously sulcate above and carinate beneath. 
Inflorescences axillary, 1-flowered, solitary, few to numerous, 
on the upper part of the stem. Pedicellate ovary up to 3.5 
cni. long in anthesis, strict, loosely clothed with about 2 
tubular sheaths. Flowers small for the genus. Lateral 
sepals lanceolate, 1.1-1.2 cm. long, about 4 mm. wide at 
base, sharply acuminate, triquetrous-thickened near the 
^Pex, somewhat oblique. Dorsal sepal similar, lanceolate, 
1-1-1.28 cm. long, about 4 mm. wide below the middle, 
somewhat concave in the basal half. Petals similar to the 
95 
