280 



foliis satis parvis, anguste oblongis, acutis, dorso infernc 

 leviter carinatis, basi breviter vagiiiantibus ; racemo 

 breviusculo, laxe paiici-plurifloro; bracteis ovato-lanceo- 

 latis, longe acuminatis, glabris, ovario satis brevioribus; 

 sepalo dorsali ovato, apice rotundato et minute apiculato, 

 lateralibiis satis longioribus, oblongo-ligulatis, abrupte 

 acutis, falcatis,deflexis; petalis indivisis, lineari-ligulatis, 

 obtusis, basi non dilatatis, sepalo dorsali paulo breviori- 

 bus; labello basi breviter indiviso deinde tripartito, par- 

 titionibus obtusiusculis, lateralibus anguste linearibus 

 leviter divergentibus, intermedia satis longiore lineari- 

 ligulata; calcari pendulo, anguste lineari-clavato, apice 

 subrotundato, ovario longiusciile pedicellato satis bre- 

 viore; processubus stigniaticis brevibus, obtusis. 



Caulis erectus, rectus vel leviter flexuosus, teretius- 

 culus, viridis, 3-3 1/2 dm. altus, 1 1/2 mm. crassus. Folia 

 erecta vel erecto-patula, siccitate membranacea, intense 

 viridia, 4-6 cm. longa, 1/2-1 cm. lata. Racemus rectus 

 vel leviter arcuatus, 6-11 cm. longus. Bracteae erectae, 

 membranaceae, leviter ventricosae, basi breviter vagi- 

 nantes, 12-16 mm. longae. Sepala subtiliter 5-nervuIosa ; 

 dorsale satis concavum, 5 mm. longum, 3 1/2 mm. latum; 

 lateralia 6 1/2-7 mm. longa, 2 mm. lata. Petala erecta, 

 falcata, obscure trinervulosa, 4 1/2 mm. longa, 1 1/4 mm. 

 lata. Labellum carnosum, pendulum, basi integrum 

 1 mm. longum; partitiones latérales paulo arcuatae, 

 3-4 mm. longae, vix 1/2 mm. latae; partitio intermedia 

 subrecta, 5 mm. longa, 3/4 mm. lata; calcar paulo 

 arcuatum, 15 mm. longum, inferne vix 1/2 mm. et 

 prope apicem 1 1/2 mm. crassum. — Affinis H. Hiero7njmi 

 Kraenzl. 



*S. Paulo (St-Hilaii-c, C^, n. 1232 in herb. Mus. Paris, comm. cl. 

 J. Poisson). 



