This species differs from others in the linear-lanceolate, 
denticulate petals, subtriangular, erect, parallel lateral 
lobes of the lip and diverging, subulate, lateral lobules 
of the mid-lobe. 
Cryton: Ratnapura District, Weragama, in tropical wet evergreen 
forests at 220 meters altitude, November 30, 1959, Jayaweera 2057 
(Type), flowers reddish brown, epiphytic on Wormia triquetra Rottb., 
Celtis Wightit Planch., ete. It flowers in October and November. 
Oberonia fornicata Jayaweera sp. nov. 
Epiphytica, caespitosa, inflorescentia inclusa usque ad 
20 cm. alta. Foliis paucis, carnosis distichis, equitanti- 
bus, ensiformibus, apice acutis, basi non articulatis, 1.5— 
2.5 em. longis, 0.5-0.7 cm. latis. Inflorescentia satis 
dense multiflora, pendenti, pedunculo 1.5 cm. longo in- 
cluso usque ad 14 cm. longa. Bracteis ovatis, obtusis, 
1.2 mm. longis, 0.5—-0.7 mm. latis. Sepalo postico, ovato, 
acuto, margine ciliato, 1.4 mm. longo, 0.8 mm. lato; 
sepalis lateralibus suborbicularibus, obtusis, margine in- 
tegris vel remote irregulariterque subdenticulatis, 1 mm. 
longis, 0.9 mm. latis. Petalis lanceolatis vel ovato- 
lanceolatis, acuminatis, margine ciliatis, 1.4 mm. longis, 
0.5 mm. latis. Labello sepalis lateralibus aequilongo, 
3-lobo, lobis lateralibus lineari-falcatis, columnam invol- 
ventibus lobo intermedio 8-fido, partitionibus lateralibus 
subulatis, divergentibus, partitione intermedia abbrevi- 
ata, dentiformi, obtusa. Columna globosa, 0.8 mm. alta. 
Ovario pedicellato 1.7 mm. longo. 
Tufted epiphyte with compressed, non-pseudobulbous 
stems. Whole plant 3-8.5 cm. high. Leaves few, red- 
dish green, fleshy, distichous, laterally compressed, short, 
oblong-ensiform, 1.5—-2.5 em. long, 0.5—-0.7 em. broad, 
acute, bases confluent with the stem (Plate XVI). Flow- 
ers greenish brown with avery pale coral lip; drooping 
racemes 14 cm. long, with sterile basal bracts. Peduncle 
1.5 em. long, bracteate almost to the base. Flowers in 
( 106 } 
