112 



clinandrio parvo, concavo cum costula longitudinal! in rostellum decurrente, auriculis 

 obtusis. Anfhera cucullata, longe ultra thecas producta, ambitu subquadrangula 

 vel melius 7-angula, apice abrupte subulato-acuminata, basi truncata, c. 0'14 cm. 

 longa, connective in costulam longitudinalem incrassato, thecis suborbicularibus. 

 Pollinia 4, geminata, lateraliter compressa, triangula, extus convexa. Ovarium 

 pedicellatum 6-costatum, c. O9 cm. longum. Gapsula oblongo-obovoidea, basi 

 acuta, c. 1-1 cm. longa, pedicello c. I'l cm. longo. 



Hob. Arfak Mts., Angi lakes, forest patch by $ lake, edge of forest in 

 humus, terrestrial, 7000'. Fl., Fr. Dec. 5G89. 



The first species of the section Rhachidilulbon recorded from New Guinea. 

 It much resembles L. brgvistylis J. J. S. (L. montana Lindl. var., brevistylis 

 J. J. S.). 



Flowers green with a brown labellum. 



LIPARIS ( PLATYCHILUS ?) GIBBSIJR J. J. S., sp. nov. 



Rliizoma repens, radicans, teres, vaginis magnis ad c. 3'25 cm. longis tectuin. 

 Pseudobulbi c. 2'5 cm. distantes, cum rhizomate angulum anguste acutum facientes, 

 sicco tenues, teretes, c. 2'5 cm. longi, 1-folii, basi nonnullis vaginis magnis acute 

 acuminatis ad c. 4 cm. longis cincti. Folium inarticulatum, erectum, lanceolatum, 

 acuminatum. acutum, basi sensini in petiolum angustatum, nervis 5 majoribus subtus 

 prominentibus, sicco membranaceum, c. 9'75-10 - 5 cm. longum, 2'l-2'25 cm. latum ; 

 petiolus canaliculatus, nervosus, c. 2'5-4 cm. longus. Inflorescentia in pseudobulbo 

 mature terminalis, folio brevior, satis multiflora, pedunculo c. 4'5 cm. longo, vaginula 

 angusta acuta c. 2'75 cm. longa ad basin, rhachide fractiflexa, c. 6 cm. longa. Bractcce 

 adpressse, lanceolato-trian guise, acutissimae, concavse, 1-nervise, ad c. 0'55 cm. longse. 

 Flores c. 16, quaquaversi, patentes, sepalis patentissimis, convexis. Sepalum dorsale 

 oblongum, superne angustatum, obtusum, 3-nervium, costa media dorso apicem versus 

 prominente, c. 0*65 cm. longum, 0'25 cm. latum. Sepala lateralia divergentia, 

 oblique oblonga, f'alcatula, obtusa, vix apiculata, 3-nervia, costa media dorso pro- 

 minente, c. - 67 cm. longa, 0'3 cm. lata. Petala reflexa, linearia, obtusa, basi 

 leviter oblique dilatata, leviter convexa, 1-nervia, c. 0'57 cm. longa, medio O'OG cm. 

 lata. Labellum porrectum, cum gynostemio angulum acutum faciens, basi gyno- 

 stemio adnatum, in utraque parte canaliculse latse longitudinalis convexum, subtus 

 convexum, e basi contracta quadrangula sensim dilatatum, 2-lobum, obcordatum, 

 lobis remotis obtusis grosse crenatis cum lobulo brevi obtuso in sinu, basi contracta 

 excepta ciliolatum, 3-nervium, nervis exterioribus ramosis, callo majusculo antice 

 dentes 2 erectos parallelos falcato-triangulos acutiusculos utrosque basi antice in 

 costulam brevem exeuntes gerente in basi, explanatum c. 0'67 cm. longum, antice 

 0'45 cm. latum, parte contracta c. 0'2 cm. longa, 0'275 cm. lata. Qynostemium 

 superne valde hamato-incurvum, dorso convexum, basi valde dilatatum, medio labello 

 adnatum, ovario multo latius, c. O32 cm. longum, basi 0'17 cm. latum, clinandrio 

 concavo, intus ad basin rostelli dente acuto instructo, auriculis subquadrangulis 

 Anthera cucullata, transverse quadrangulo-ovalis, apice truncata, basi emarginat? 

 bidentata. Stigma, obverse rotundato-triangulum, margine elevatum. Ovariuii 

 6-sulcatum, cum pedicello c. 0'4 cm. longum, curvatum. 



Hob. Arfak Mts., Angi lakes, forest patch by ? lake, epiphyte in forest 

 7000'. Dec. 5G<s2 and 5897. 



