ORCHIDACE^ 



gularia, apice complicata, mentum conspicue saccatum forman- 

 tia. Sepalum dorsale lanceolatum, acutum, apiculatum. Petala 

 lineari-oblonga, apice late rotundata. Labellum ligulato-oblon- 

 gum, ad basim apicemque paulo latins, leviter retusum, margini- 

 bus anterioribus eroso-crenatis. Gynostemium breve, crassum, in 

 pedem extensum. 



Plant stout. Roots numerous, slender, fibrous, flexuous, about 

 .5 mm. thick. Stem entirely concealed by the imbricated leaves, 

 when exposed slender, complanate, often with one or more in- 

 cipient branches above; internodes clavate, ±1 cm. long. Leaves 

 up to 7 cm. long, 1 cm. wide near the base, distichous, equitant, 

 closely imbricating, linear-scalpelliform, somewhat spreading-fal- 

 cate, acute or slightly mucronate. Peduncles lateral, rising from 

 the bases of the middle or upper leaves, mostly concealed by the 

 imbricating leaves, simple or two-forked, clothed with distichous 

 imbricating deltoid bracts which are about 1 cm. long. Flower 

 solitary, conspicuous, apparently purple. Lateral sepals about 

 6.5 mm. long, 6 mm. wide, broadly triangular, acuminate to a 

 complicate apex, very oblique, forming a deeply saccate mentum, 

 prominently four-nerved with a fifth less conspicuous nerve. Dor- 

 sal sepal about 6 mm. long, 2.7 mm. wide near the base, lanceo- 

 late, acute and apiculate, three-nerved. Petals about 4.2 mm. 

 long, 1.5 mm. wide, linear-oblong, broadly rounded at the apex, 

 one-nerved. Lip about 6.5 mm. long, 3 mm. wide at the slightly 

 broader base and apex, ligulate-oblong, shallowly retuse, anterior 

 and lateral portions thickened, anterior margins erose-crenate, 

 lateral margins ciliolate. Column short, stout, broadly winged, 

 extended into a foot. 



The nearest relative of this species is apparently Dendrobium 

 Elmeri Ames of the Philippine Islands, but the Bornean plant 

 is distinguished by the more robust habit, by the leaves being 



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