Smith : Orchldaceae novae MaLayenses X. Q7 



concavum, supra basiii Snervium, totiim fere 1.2 cm. longum, 0.54 cm. latum, 

 ungue 0.2 cm. longo, 0.25 cm, lato. Sepala lateralia pateiitissima, e basi 

 l.eviter cuneato-contracta oblique subovata, obtusissima, margine aiitico basi 

 recurvula, obtusangule coiicava, dorso carinata, 5nervia, fere 1.2 cm. loiiga, 

 0.57 cm. lata. Petala oblique spathulata, ex ungue quadraiigulo in laminam 

 subovalem obtusissimam dilatata, bene concava, 3nervia, fere 1:1 cm. longa, 

 fere 0.5 cm., ungue 225 cm. lata. Labellum basi lata pedi gynostemii 

 insertum, saccatum, 31obum, ex apice lobi intermedii usque apicem ovarii 

 c. 0.825 cm., ex apice loborum lateralium usque apicem calcaris c. 0.9 

 cm. metiens (absque pilis), explanatum bene 0.7 cm. longum, 1.3 cm. latum, 

 callo transverso inclinato quadrangulo truncato medio vix producto vel plus 

 minusve trilobulato vel tridentato glabro intus in flexu, fascia villosa lon- 

 gitudinali e callo in saccum decurrente, lobis lateralibus utrinque longissime 

 lobo intermedio extus et margine longe clavato-pilosis; lobi latérales magni, 

 erecti, incurvuli, gynostemium bene superantes, leviter concavi, oblique 

 trianguli, margine postico rotundati, margine antico recti, apice rotundati; 

 lobus intermedius oblique erectus, cum calcari angulum obtusum 

 faciens, concavus, supra visus late triangulus, subtus infra apicem 

 rectangule conico-incrassatus, explanatus semiovalis, lobos laterale^aequans, 

 cum eis angulos obtusos faciens, c. 0.13 cm. longus, 0.36 cm. latus; 

 calcar saccatum, dorso pedem gynostemii continuum et supra basin 

 fere rotundato-rectangule incurvum, apice fere truncato-obtusissimum, 

 sulco longitudinali retusum, usque apicem ovarii c. 0.55 cm. longum. 

 Gynostemium rectum, latum, apice angustatum et vix oblique truncatum, 

 subtus inferne (cum pede) marginibus manifeste rotundato-dilatatis excavato- 

 concavum, c. 0.3 cm. longum, clinandrio leviter concavo, apice breviter 

 producto et obtuse bilobulato, pede cum ovario angulum subrectum faciente, 

 c. 0.2 cm. longo. Anthera cucullata, tenuis, rotundato-quadrangula, apice 

 medio leviter retusa et dente minuto triangulo acuto apiculata, c. 0.125 cm. 

 lata. Pollinia 4, inaequalia, ovali-oblonga, apice rotundata, antice convexa, 

 postica minora, cum stipite brevissimo apice libero triangulo et glandula 

 parva semilunata c. 0.13 cm. longa. Rostellum brevissimum, remote biden- 

 tatum. Stigma transverse ellipticum. Ovarium ôsulcatum, c. 0.9 cm. longum. 



Sumatra: Bantjah, Goenoeng Singgalang. (E. JACOBSON, cuit sub 

 n. 1572). 



The species is nearly allied to Th. sqiiarrosiim J.J.S. of Java. It differs 

 from the latter in the much more robust scapes, larger flowers, a rounded 

 midlobe and the side lobes being very hairy outside. Perhaps they will 

 prove to be local forms. 



„Beduncle yellowish green. Ovary light yellowish green. Sepals and 

 petals transparently white, faintly tinted with yellow. Lip light yellow, 

 dotted light brown. Column white. The flowers hâve a strong and unpleasant 

 odour, in the way of Vanda helvola Bl." (E. jACOBSON). 



