\qQ R. Schlechter. 



giabris; sepalis patentibus, oblongis, subacutis, basin versus angustatis, , 

 c. 1,9 cm longis, lateralibus obliquis; petalis elliptico imguiculatis, sub- 

 acutis, paulo obliquis, supra medium quam sepala sublatioribus, ungue 

 angusto; labello alte trilobo, ima basi tantum marginibus columnae per- 

 breviter adnato, explanato, 1,9 cm longo, inter apices loborum lateralium 

 2 cm lato, callo foveato rhombeo lateribus utrinque carina obscura duplici 

 basin versus decurrente ornato infra medium ornato, ner'vis 3 parallelis 

 incrassatis in lobo intermedio aucto, lobis lateralibus oblongo-ligulatis, 

 obtusis, apicem versus leviter dilatatis, apicibus adscendentibus, columnam 

 amplectentibus, 9 mm longis, infra apicem 5 mm latis, lobo intermedio 

 e isthmo brevi, quadrato orbiculari, apiculato, margine leviter undulato, 

 nervis nonnullis basin versus incrassatulis, isthmo vix 2 mm longo incluso 

 c. 1,1 cm longo, medio 1 cm lato; columna semitereti, juxta stigma pauk) . 

 dilatata, 1 cm longa, glabj^a, juxta stigma margine utrinque auricula 

 semioblonga incurvula ornata; ovario pedicellato glabro, laevi, 2,5 cm 

 longo. 



Antioquia: c. 10C3 m. — M. Madero. 



Eine Art aus der Verwandtschaft der Encyclia oncidioid^s (1 11.) 

 Schltr., aber mit viel lockerer Infloreszenz, am Grunde auffallend stark 

 verschmälerten Fetalen und ziemlich langen und breiten Seitenlappen j 

 des Labellums. ^ 



Polystachya colombiana Schltr., nov. spec. 



Epiphytica, erecta, 20 — 30 cm alta; rhizomate valde abbreviato; | 

 radicibus filiformibus, flexuosis, giabris; pseudobulbis e basi ovoidea 

 attenuatis, sensim in scapum transeuntibus, 2 — ^3-foliatis, parte inerassata i 

 usque ad 1,5 cm longa, supra basin ad 7 mm diametro; foliis erecto-paten- ^ 

 tibus, ligulatis, oblique obtusatis, basin versus paulo angustatis, coriaceis, 

 12 — '16 cm longis, medio fere 1,7—2,3 cm latis; inflorescentia erecta, laxe 

 paniculata, apice ramisque subdense pluriflora, pedunculo erecto, vaginis 

 c. 3 arcte et alte amplectentibus, pallidis omnino obtecto, 12 — 17 cm longo, 

 panicula ipsa angusta, vulgo unilaterali, usque ad 10 cm longa; bracteis 

 deltoideis, acuminatis, ovario multo brevioribus; floribus illis P. luteolae 

 Hk. fere aequimagnis, inversis; sepalo intermedio oblongo, obtusiusculo, 

 glabro, 3,75 mm longo, lateralibus oblique triangulis, apiculatis, 4 mm 

 longis, basi margine anteriore conspicue dilatata, cum* pede columnae 

 mentum oblongoideo-triangulum obtusum, 3 mm longum formantibus; 

 patalis oblique linearibus, apicem versus paulo dilatatis, obtusis, uninerviis, 

 3,5 mm longis; labello e basi angustata cuneato circuitu late obovali, 

 supra medium trilobo, 5 mm longo, medio fere 4 mm lato, basi callo lineari, 

 obtuso, usque ad medium decurrente ornato, dimidio anteriore loborum 

 excepto superne papilloso-farinoso, lobis lateralibus falcato-ligulatis 



