NEW OH NOTEWOHTIIY OHCIIIDS 
coriaceous, about thrice shorter than the inflorescence. Pe¬ 
duncle with the raceme 15-18 cm. long, slender. Raceme 
10-12 cm. long, loosely twenty or more flowered with a some¬ 
what flexuose rachis. Flowers dark brown when dry, 5-9 
mm. apart, distichous. Bracts of the raceme hardly 2 mm. 
long, infundibuliform. Lateral sepals about 2 mm. long, 
3 mm. wide, suborbicular or transversely elliptical, minutely 
glandulose within, fleshy, 3-ncrved. Dorsal sepal 3 mm. long, 
3 mm. wide, broadly ovate, minutely glandulose within, 
3-nerved, with the nerves slightly prominent. Petals about 
1 mm. long, 1 mm. wide, tlabelliform from a cuneate base, 
much thickened above the middle, below the middle concave 
or excavated, 3-nerved. Labellum much smaller than the 
petals, .75 mm. long, membranaceous below the middle, 
with the upper half conspicuously thickened, rounded and 
obtuse at the apex, with a prominent transverse callus at the 
middle. Callus triangular with a posterior prominence. 
Column dilated toward the summit. 
Undoubtedly a close ally of Slelis effusa Schltr., from 
which it differs chiefly in having larger flowers and broader 
leaves. In S. disiantiflora the rachis of the raceme is ap¬ 
parently stouter and the flowers farther apart than in 
S. effusa. When dry the flowers are deep reddish brown, 
but in living specimens they are probably purplish. 
Costa Rica. C. II. Lankester s. n. Received at the 
Royal Gardens, Kew, in 1923. (Type in Herb. Ames No. 
26977. Duplicate from the type plant in Herb. Kew.) 
Stelis eximia Ames sp. nov. Radices valde libratae, 
glabrae. Caules secundarii caespitosi, vaginati, elongati. 
Folium anguste cllipticum, obtusum, apice inconspicue bi- 
lobulatum, coriaceum, in petiolum brevem contractum. 
Pedunculus cum racemo folio multo longior, multiflorus, 
bractea spathacea subtendenti. Bracteae racemi oblique 
infundibuliformes, pedicello breviores. Pedicellus cum 
ovario ascendens. Sepala lateralia ovata, obtusa, quin- 
quenervia. Sepalum dorsale simile. Petala cuneata, apice 
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