II. Beschreibungen neuer Arten. 107 



gi-acilibus, erectis vel adecendentibiiw, imifoUatis, teietibus, vagiiiia 4 — (> 

 arcte amplectentibüg, ostio ampliato ovato acuminato muriculato-cilio- 

 latis omnino obtectis, 4 — 7 cnflongis, supra basin 1- — 1,5 mm diametienti- 

 bus, saepius superpositis ; folio erecto vel suberecto, oblongo, obtu&o, basi 

 in petiolnm perbrevem contracto, 1,5^^ — 2,5 cm longo, medio fere ugque 

 ad 1 cm lato; inflorescentiis 1 — 2-nis, erectis, gracillimis, sublaxe 10 — 20- 

 floris, pedunculo ßctiformi uc-que ad 2 cm longo incluso nsqne ad 7 cm' 

 löngis, distichis, sed positione florum verosimiliter secnndis; bracteis 

 minutis, ovato-cücullatis, apiculatis, pedicello ovarii 3 — 4-plo brevioribns ; 

 floribiis in sectionemediocribns, teiiuissimis, glabris, haud inversis ; sepalis 

 lanceolatis, longins acuminatis, 3-nerviis, 5,5 inm longis, lateralibus falcato- 

 obHquis; petalis parvulis, oblique obov,ato-ob]ongis, obtusistimis, üni-^ 

 nervis, 2 mm longis; labello linguiformi, obtuso, in tertia parte basilari 

 leviter rhombeo-dilatato, caiinis 2 tenuibus paralleb's percurfo, quam 

 petala paululo longiore; columna gracili, parvula, 1,5 mm longa, juxta 

 Stigma margine utrinque semiquadrato-dilatata, clinandrio elato, sub- 

 int^gro, pede mediocri; ovario graciliter pedicellato, 3,5 mm longo. 



Gauca. — M. Madero. 



Offenbar sind die Blüten dieser reizenden, zu den ,,Lepanthiformes'' 

 zu rechnenden Art weißlich oder gelblich. 



Die Art steht wohl der unten beschriebenen P. peniculus Schitr. 

 am nächsten, hat aber recht verschiedene Blütenteile. 



Pleurothallis leptantha Schitr., nov. ppec 

 ^ Epiphytica, pusilla, caespitpsa, 5 — 6 cm alta; rhizomate valde 

 abbreviato; radicibus filiformibus, flexuosis, glabris; caulibus valde abbre- 

 viatis, 3—9 mm longis, unifoliatis; folio erecto, lanceolato-ligulato, basi 

 gensim in petiolum 5 — 8 mm lorgum angustatis, 3,5- — 5,5 cm longo, 

 medio fere 0,7- — 1 cm lato; inflorescentia gracillima, uni-vel bi-flora, folia 

 vulgo vix aequante, pedunculo capillaceo, pauci vaginulato; bractea 

 oblorga, breviter acuminata, pedjcellum amplectente, ovario pedicellato 

 fere 3- — 4-plo breviore; flore in sectione inter minores, glabio, tenui, sub- 

 diaphano; sepalis lanceolato-oblongis ; obtusiuscule acuminatis, vix 4 mm 

 longis, lateralibus obliquis, usque ad tertiam partem apicalem connatis; 

 petalis oblique ligulatis, acuminatis, supra medium margine anteriore 

 bene dilatatis, basi breviter dilatatis, c. 2,75 mm longis; labello circuitu 

 ligulato, infra medium rhombeo-dilatato, marginibus subcrenulato, glabro, 

 0. 3 mm longo, infra medium c. 1,5 mm lato; columna subrecta, apicem 

 versus pauIo dilatata, clinandrio elato, subcrenulato, utrirque lobu^o erecto 

 subulato-lineari, acuto axicto; pede vix 1 mm longo; ovario pedicellato, 

 glabro, c. 6 mm longo. 



Magdalena: Santa Marta. ^^ — Herbert H. Smith no. 2554. 



