Type: Venezuela; Caracas, LANSBERG 4! (W). 
Epiphytic caespitose plants, up to 7 cm. tall. Roots fascicu- 
late, glabrous. Secondary stem very short, completely en- 
closed by two tubular sheaths, up to 5 mm. long. Leaves 
linear-spathulate, obtuse, gradually tapering to base, subpetio- 
late, up to 7 cm. long and 6 mm. wide, commonly smaller. 
Peduncle filiform, one-flowered, up to 5 cm. long. Bracts tubu- 
lar, up to 4mm. long. Flowers small, yellow. Sepals connate 
into a dorsally ventricose tube, up to 8 mm. long, free part 
linear-oblong, acute, up to 8 mm. long and 1.5 mm. wide. Petals 
linear-oblong, truncate at apex with a small apiculum in mid- 
dle, slightly tapering toward base, the anterior margin with a 
small, subglobose callosity above the base, up to 2.5 mm. long 
and 0.5 mm. wide. Lip 3-lobed, lateral lobes semi-elliptic; 
terminal lobe cuneate-subquadrate, with an obtuse, subtrun- 
cate, erose-denticulate apex, at the junction of the terminal 
lobe and lateral lobes on each side provided with an obliquely 
inserted, semi-lunate callus; whole lip up to 3 mm. long and | 
mm. wide. Column short with a distinct foot, cylindric, up to 2 
mm. long. Ovary cylindric, up to 2 mm. long. 
Venezuela: Caracas, LANSBERG 4! (W); Tovar, FENDLER 
1369! (AMES) 
Masdevallia kyphonantha, Sweet, sp. nov. 
Type: Venezuela; Estado Yaracuy; 7 km. N. of Salom, 
STEYERMARK 106263! (AMES). 
Epiphytica, caespitosa, usque ad 5 cm. alta; radicibus fasci- 
culatis, flexuosis, glabris; caulibus secundariis approximatis, 
valde abbreviatis, vaginis 2, ample tubulosis omnino obtectis, 
usque ad 4 mm. longis; foliis carnosis, lineari-oblongis, paulis- 
per basin versus attenuatis, obtusis, usque ad 5 cm. longis, 2 
mm. latis; inflorescentia capillari, uniflora, usque ad 2.5 cm. 
longa; bracteis tubulosis, usque ad 4 mm. longis; floribus al- 
bidis; sepalis tubulosis, dorsaliter ventricosis, arcuatis, inde 
nomen, usque ad 18 mm. longis, lobis liberis, lanceolato-trian- 
gularibus, subacuminatis, usque ad 8 mm. longis, 3 mm. latis; 
petalis oblique spathulatis, apice rotundatis, minute muc- 
ronatis, Margine anteriore in medio callo globoso ornata, usque 
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