" Corollae tubus elougatus vix dilatatus intus villosulus, haad medio 

 constrictus. Labellu.ni eilipticum integrum, parte mediana paullo producta 

 et crispulo-incurva, auriculis oblongis angustis, in vivo album apice dilute 

 sulfurem 25X15 long Änthera sessile; connectivum profunde emargina- 

 tum, lobis supra thecas paullo projectis obtüsis. Stigma generis apice tri- 

 gonum, ostio magno antico, gibbo dorsali. Stylodia semicyiiudrica 6 mm. 

 longa Capsula ignota. 



Distribution. 



West-Sumatra: Sibolangit, 700 M. in secundary forest; not rare. ( LöR- 

 ZiNü 4342, 1 7/Ö 1916. „Robust herb, many stems ( ± 30), about 6 M. 

 inflorescences bright red (coral coloured). Flowers bright coloured (incar- 

 nate). Label! il m white a pale yellow tip curled up toward the centre, stiff 

 hut the upper bolder membranous and irregularly folded. Connective 

 bright red at the top, stigma darker red"). 



Plate 5. 



Fig. I. Flower, ii. s.— Fig, 2. Flower, petals and anther made visible, n. s.— Fig. 

 3. Flower without calyx and bracteole, explained, n, s.— Fig. 4. Upper part of calyx,- 

 n. s.— Fig. 5. Upper part of bracteole, n. s. 



