ORCHIDACEiE 



obtecto. Petiolus plus minusve 1 cm. longus, superne sulcatus. 

 Pedunculus terminalis, cum racemo plus minusve 7 cm. longus, 

 arcuatus, quam folium longior, usque ad racemum nudus, infra 

 racemum bracteis duabus imbricantibus. Racemus circa 2 cm. 

 longus, usque ad 8 mm. in diametro, distichiflorus, plus minusve 

 decemflorus, floribus aurantiacis, circa 2 mm. inter se distanti- 

 bus. Bracteae inflorescentiae distichae, usque ad 3 mm. longae, 

 glumaceae, quam pedicellus multo longiores, late ovatae, acutae, 

 vaginantes. Pedicellus cum ovario 2 mm. longus. Sepala lateralia 

 2.5 mm. longa, prope basim 1.5 mm. lata, ovato-lanceolata, ob- 

 tusa vel subacuta, textura subcarnosa, in sicco brunnea, conspicue 

 uninervia per medium, quam labellum longiora. Sepalum dorsale 

 oblongo-ellipticum, 3 mm. longum, 1 mm. latum prope medium, 

 apice subobtusum vel acutum. Petala 2 mm. longa, 1 mm. lata 

 prope medium, bene lanceolata, acuta vel obtusa, margine incon- 

 spicue serrulata, textura subcarnosa. Labellum 2 mm. longum, 

 vix 1 mm. latum prope apicem, oblanceolatum, basi inconspicue 

 bilobatum, ad basim columnae sessile, inarticulatum, apice acu- 

 tum, textura valde carnosum, infra medium disci callo uncinato 

 omatum. Columna ebrachiata, incrassata, 1.5 mm. longa. 



There are no near allies of this species. It belongs to the sec- 

 tion of the genus Acoridium which is characterized by a more 

 or less simple labellum, that is rigidly attached to the column- 

 foot. The callus situated just below the middle of the labellum 

 is conspicuously uncinate, the bent tip pointing in the direction 

 of the column. If it were not for the rigidly attached labellum 

 this species might be referred, on floral characters alone, to the 

 section Aphanostelidium of Dendrochilum. 



Benguet Subprovince, Mount Simakoko, M. Ramos (§• G. Edano 5^, 

 October 6, 1921. On tree in mossy forest. Flowers reddish yellow. 6500 feet 

 altitude. 



[ 146 ] 



