or acutish, 5-nerved. Lateral sepals 6.5—8 mm. long, 3—4.5 
mm. broad, ovate-lanceolate, obtuse or acute, 5-nerved, 
adnate to the column along the mid-nerve for about 2 
mm. at the base. Petals 6—-7.5 mm. long, 1.8-2.5 mm. 
broad, oblanceolate, obtuse, with the apical half crenate. 
Lip strongly adnate to the column; lamina 5.5-7 mm. 
long and 5.5—-7 mm. broad, broadly cordate in outline, 
with prominent basal auricles, obtuse, emarginate, slight- 
ly constricted below the apex, with sublacerate-crenate 
margins; disc with a prominent V- or U-shaped callus 
3-4 mm. long; claw 2.5-3 mm. long, mostly adnate to 
the column but with the terminal part free. Column of 
the section, 4.5—5 mm. long. 
Ecuapor: epiphyte, mountain side above Loja, Province of Loja, 
at 2600 meters altitude, ‘inflorescence zig-zag, sepals and petals lead 
colored with white margins, labellum dull green within, margins thin, 
column green at the base, then white’’ July 28, 1939, Penland & 
Summers 1141 (Tyee in Herb. Ames No. 55404). 
A most distinctive species with no close ally. Although 
the base of the stem is suggestive of the section Encyc- 
lium, it belongs to the section Kuepidendrum. 
Epidendrum (§ Euepidendrum) Penlandii L. O. 
Williams sp. nov. 
Herbae parvae, epiphyticae, usque ad 1.5 dm. altae. 
Caules usque ad 2 cm. longi, apice bifoliati. Folia lan- 
ceolata, acuta, carnosa, quam caules longiora. Sepalum 
dorsale oblanceolatum, obtusum vel leviter acutum, tri- 
nervium. Sepala lateralia oblongo-lanceolata vel oblonga, 
faleata, trinervia. Petala clavellato-filiformia, obtusa. 
Labellum columnae valde adnatum; lamina subreni- 
formis, trilobata; lobi laterales explanati, crenati; lobus 
medius parvus, emarginatus, subcrenatus; discus carno- 
sus, callis tribus vel quinque ornatus. Columna generis. 
Small caespitose, epiphytic herbs up to 1.5 dm. tall. 
[9] 
