111 
absque auriculis subsemiorbiculare, apice in lobum medium acuminatum, ec. 0°8 em., 
totum bene 1 cm. longum, 0-9 em. latum, lobis lateralibus rotundatis, breviter 
triangulo- basin versus repando-dentatis, dentibus c. 7-8 utrinque, lobo intermedio 
incurvulo, triangulo, obtuso, brevissime obtuse 2-dentato, c. 0°24 em. longo, 0°3 em. 
lato, auriculis breviusculis, valde remotis, oblique triangulis, acutis obtusisve, 
c. O°2 em. longis. Gymnostemium a dorso compressum, apice dilatatum, ambitu 
oblongo-quadrangulum, ¢. 0°3 em. longum, clinandrio concavo, cum parte inferiore 
gynostemii angulum obtusum faciente, auriculis divergentibus,. obtusis, plus minusve 
retusis. Anthera erecta, reniformis, apicem versus angustata, obtusa, emarginata, - 
¢. 0125 cm. lata. Rostellum auriculas wequans, latum, retusum, lobulis obtusis. 
Stigma angulatum. Ovariwm pedicellatum leviter sigmoideum, 6-costatum, ¢. 0°7 em. 
longum. Fructus erectus. 
flab. Arfak Mts., Angi lakes, forest slopes by “‘campong” 9 lake, 
Fl, Fr. Dec. 5595 and 5652. 
This species belongs to Schlechter’s section Herpethorhizis. From 
M. distans Schltr. and M. megalantha Schitr., it differs in the form of the 
lip, especially in the very short auricles and the shortly dentate mid-lobe. 
The flowers are as large as those of I. megalantha, but the mid-lobe is 
conspicuously produced. 
The colour of the flowers is described as green ; in the dried plant the 
lip is dark sepia. 
Lrparis (§ RHAcHIDIBULBOoN) Lacus J. J. S., sp. nov. 
Rhizoma repens, vaginis accrescentibus tectum, vagina ultima maxima, foliacea, 
tubulosa, ad c. 3°75 em. longa. Pseudobulbi ad c. 3 cm. distantes. Folia 2, 
ovata, acuminata, acuta, curvinervia, parce transverse venosa, costa media dorso 
prominente, siceco membranacea, ce. 4°5-6 cm. longa, 2°75-3°5 cm. lata; petiolus 
late canaliculatus, cum vagina pseudobulbum amplectente c. 2—2°75 em. longus 
Intorescentia terminalis, erecta, dense multiflora, pedunculo ec. 4—4°3 cm. longo 
basi in pseudobulbum ovatum carnosum ¢. 1-6—2°2 cm. longum incrassato, rhachide 
c. 09-14 cm. longa. Bractee subulate, acute, l-nervie, c. 1:2 cm. longe, 
basi 0°27 late. Flores vagi. Sepalum dorsale oblongo-ovatum, sensim acu- 
minatum, acutum, convexum, 3-nervium, c. 0°925 cm. longum, 0°35 em. latum. 
Sepala lateralia oblique oblongo-ovata, sensim acuminata, 3- supra basin 5-nervia, 
costa media dorso prominente, dorsali «quilonga. Petala linearia, apicem versus 
sensim angustata, acuta, 1-nervia, ¢. 0°825 cm. longa, basi O'l em. lata. Labellum 
porrectum, leviter sigmoideum, valde concavum, subtus convexum, apice pellucido- 
punctatum, erosulum, intus supra basin callo U-formi postice rotundato antice 
sensim evanescente donatum, fascia longitudinali Jineari convexa apicem versus 
decrescente ultra medium labelli producta minutissime papilloso-rugulosa inter 
erura calli ante callum excavationem subsemiorbicularem reliquente, 3-nervium, 
explanatum angulato-ovatum, leviter cordulatum, lobulis basilaribus angulato- 
rotundatis, apice abrupte triangulo-acuminatum, c. 0°85 cm. longum, 07 cm. 
latum. Gynostemium breve, latum, bene curvatum, ambitu oblongo-quadran- 
gulum, apice truncatum, basi lata truncatum, dorso convexum et apice longi- 
tudinaliter bicostatum, subtus concavum, absque anthera c. 0°25 cm. longum, 
