mm. lata. Petala minuta, rhombico-ovata, supra multo 
incrassata, circiter 0.7 mm. longa et 0.9 mm. lata. La- 
bellum simplex, petalis simile, rhombico-ovatum, circiter 
0.6 mm. longum et 0.9 mm. latum; discus callo carnoso 
transverso bilobato prope medium ornatus. Columna 
generis, minuta, supra abrupte dilatata. 
This little plant seems to be allied to the Brazilian 
Stelis parvifolia Garay, but has larger glabrous flowers. 
Botivar: Chimanta Massif, elfin forest formation on plateau of 
southeast-facing upper shoulder of Apdcara-tepui, at 2000 meters al- 
A ee é . 
titude, epiphyte on branch; leaves fleshy-coriaceous, pale green; 
seape brown-purple as are the pedicels; calyx [sepals] copper-brick 
with tawny-yellow margins,’’ June 19, 19538, Julian A. Steyermark 
75712 (Typr in Herb. Ames No. 69505). 
Stelis obovata C. Schweinfurth sp. nov. 
Herba parvula, caespitosa, epiphytica, usque ad 12 
em. alta. Caules approximati, breves, usque ad 1.3 cm. 
alti, bivaginati, vaginis arctis, tubulatis obtecti. Folium 
erectum, spathulatum vel oblanceolatum (raro obova- 
tum), apice saepissime obtusum vel rotundatum, usque 
ad 2.8 cm. longum et 9 mm. latum. Inflorescentiae fo- 
lium multo superantes, usque ad 10.8 cm. longae; race- 
mus superne dense multiflorus, saepe secundus. Flores 
minuti, carnosiores. Sepala rotundato-ovata, obtusa vel 
subacuta, concava, trinervia, subaequalia, basi paulo con- 
nata, lateralia obliqua. Sepalum dorsale circiter 2 mm. 
longum et 1.8 mm. latum. Petala multo minora, in posi- 
tu naturali cuneato-obovata, circiter 0.8 mm. longa et 
fere lata, parte superiore carnosissima. Labellum sim- 
plex, cuneato-obovatum, apice subtruncatum et incras- 
satum, circiter 1 mm. longum et latum; discus medio 
cum callo lanceolato-pandurato. Columna generis, mi- 
nuta, supra abrupte dilatata. 
This species appears to be closely allied to Stelis len- 
tiginosa Lindl., the peculiar lip being almost identical, 
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