123 
latum. Sepala lateralia oblique lanceolata, brevissime acuminata, margine anteriore 
anguste incurva, 3-nervia, c. 2°1 cm. longa, 0°55 em. lata. Petala parva, gynostemio 
adpressa, oblique lanceolato-triangula, sensim acuminata, subfalcatula, apice recurva 
et convexa, l-nervia, c. 0°375 cm. longa, bene 0-1 em. lata. Labellum immobile, 
subrectum, leviter sigmoideum, spathulato-lanceolatum, totum ec. 1:45 em. longum, 
ungue lineari-oblongo, basi lobulis 2 erectis obtusis postice transverse conjunctis 
excavato-concavo, basi postice excavato, c. 0°35 em. longo, subtus longitudinaliter 
suleato, marginibus sulci in lamina in costas parallelas longitudinales aliformes tenues 
_ superne evanescentes exeuntibus, lamina anguste elliptica, obtusa, valde convexa, 
papillosa. Gynostemium subgracile, curvatum, ¢. O44 em, longum, ad’ basin 
stigmatis infra medium gynostemii callo triangulo lateraliter compresso donatum, 
apice (filamento) recurvo, cum gynostemio angulum obtusum faciente, triangulo, 
acuto, concavo, clinandrio concavo, lateribus dilatatis oblique quadrangulis dentatis. 
Anthera cucullata, connectivo longitudinaliter incrassata. Stigma longitudinale. 
Pes gynostemii brevis, in callum transversum carnosum obtusissimum in excava- 
tionem basilarem labelli quadrans incrassatus, subtus infra callum in partem incurvam 
anguste oblongam concavam labellum gerentem productus, totus c. 0°13 em. longus. 
Ovarium curvulum, 6-sulcatum, ¢. 0°43 em. longum; pedicellus tenuis, c. 0°35 em. 
supra basin articulatus, c. 2 em. longus. 
Hab. Arfak Mts., Angi lakes, epiphytic in forest patch by @ lake. 
Dec. 5663. 
This plant differs from B. concolor J. J. 8., probably its nearest ally, by 
its longer leaves, shorter peduncle, larger, differently coloured flowers, and 
differently shaped petals. 
The sepals are described as brown, the lip shading to yellow. 
BuizopHyitium (§ PoLyBLeEPHARON) BIRUGATUM J. J. 8., sp. nov. 
Rhizoma elongatum, probabiliter dependens, ramosum, vaginis tubulosis acutis 
vel acute acuminatis dorso carinatis ad c. 06 cm. longis diu persistentibus fere 
omnino obtectum. Pseudobulbi parvi, spiraliter dispositi, ec. 1°5 cm. distantes, 
2 partibus inferioribus rhizomati adnati, toti c. 0°3-0°35 em. longi (sicco), parte 
libera rhizomati adpressa, bene semitereti, truncata, ¢. 0-1 em. longa, 1-folia. 
Folium \anceolatum, brevissime acutatum, conico-apiculatum, basi brevissime con- 
-tractum et conduplicatum, costa media supra suleata, carnosum, maceratum ec. 2 cm. 
longum, 0°5 cm. latum. Inflorescenti@ numerose, ad nodos rhizomatis fasciculate, 
brevissime, 1-flore, pedunculo c. 01 em. longo, vaginula tubulosa ad basin. Bractea 
oblique cucullata, dorso ad apicem carinata, ovario brevior, ¢. 0°07 em. longa. 
Flos parvus, maceratus c. 0°36 cm. longus, sepalis conniventibus, apice recurvulis. 
Sepalum dorsale horizontale, oblongum, obtusum, breviter obtuse conico-apiculatum, 
concavum, superne vix erosulum, 3-nervium, ¢. 0°37 em. longum, 0°15 em, latum. 
Sepala lateralia porrecta, cum pede gynostemii mentum subrectangulum cum ovario 
angulum obtusum faciens obtusum postice ec. 0°18 em. longum formantia, margine 
proximo ultra medium conglutinata, oblique triangula, falcata, margine exteriore 
rotundata, obtusa, breviter obtuse conico-apiculata, concava, 3-nervia, tota ¢. 0°35 cm. 
- longa, 0°17 em. lata. Petala gynostemio adpressa, parallela, oblique oblonga, superne 
denticulata, longe subulato-acuminata, 1-nervia, ec. 03 em. longa, 0-1 em. lata, 
L 
