22 Bulletin Jard. Bot. Buitenzorg, Série III, Vol. V. Livr. i. 



Cystorchis abcrrans J. J. S. n. sp. 



Caiilis e basi deciimbeiite radicante 3.5 — 6 cm. loiiga adscendens, 

 teres, parte erecta c. 2.5 cin.longa, c. 5folia. Folia patentia, petiolata, oblique 

 ovata ad ovato-elliptica, apice aiigustata, acuta, apiculata, basi breviter in 

 petiolum contracta, c. 5nervia, curvinervia, laxe transverse venosa, c. 2— 3.5 

 cm. longa, 1.5—2.2 cm. lata ; petiolus cum vagina late tubulosa 

 c. 1.2 — 1.5 cm. loiigus Iiifioresceiitia stricta, apice densius multiflora, pe- 

 dunculo tereti, piibesceiiti, c. 23.5 — 25 cm iongo, vaginulis c. 4 siiperiore 

 excepta basi tubulosis laxe adpressis acutis ad c. 1.9 cm. longis doiiato, 

 rachide densius pubescenti, c. 2—3.5 cm. longa, 12 — 15flora. Bracteae 

 ovario adpressae, e basi dilatata ovata concava ciliata longe subulato- 

 acuminatae, acutae, Inerviae, c. 0.95 cm. longae. Flores quaquaversi, ovario 

 erecto-patentes, tepalis cum ovario angulum subrectum facientibus, omnino 

 glabri, c. 0.6 cm. lati. Sepalum dorsale horizontale, auguste oblongum, 

 obtusum, concavum, marginibus basi incurvis, Inervium, c. 0.65 cm. longum, 

 fere 0.2 cm. latum. Sepala lateralia oblique porrecta, divergentia, verticalia, 

 basi basin labelli amplectentia, auguste oblique oblonga, obtusa, concava, 

 Inervia, bene 0.6 cm., margine antico 0.675 cm. longa, 0.23 cm. lata. Petala 

 sepalo dorsali agglutinata, oblique lanceolata, apice angustato oblique sub- 

 truncata, basi subfalcata unguiculato-contracta, inaequilatera, latere sepala 

 lateralia versus spectante latiora, concava, Inervia, sepalo dorsali paulo 

 breviore, c. 0.6 cm. longa, 0.175 cm. lata. Labellum horizontale, ambitu 

 oblongum, marginibus valde incurvis gynostemio adpressum, valde cana- 

 liculato-concavum, apice in laminam satis conspicuam leviter recurvulam 

 gynostemium superantem ambitu orbiculari-ovatam obtusam bene concavam 

 subtus convexam et esulcatam c. 0.12 cm. longam productum, basi rotundato- 

 concavum et utrinque obsolète inflatum cum glandula conspicua porrecta 

 oblique conica curvuia oblique truncato-obtusa, extus callositatibus 2 conspicuis 

 longitudinalibus oblique oblongis irregulariter crenulato-marginatis rugulosis 

 in facie inferiore labelli sulco alto separatis ad basin laminae terminantibus 

 in basi labelli in costam unicam conspicuam convexam esulcatam basin 

 attingentem confluentibus instructum, intus in utraque parte canaliculae 

 conspicuae convexo-incrassatum,totum c. 0.66 cm. longum. Gynostemium cum 

 ovario angulum obtusum faciens, gracile, c. 0.44 cm. longum, clinandrio 

 oblongo, concavo. Anthera rostellum superans, cucullata, auguste cordato- 

 oblonga, apice recurvula obtusa, basi breviter biloba, connectivo convexo- 

 incrassato. Pollinia eloiigata. Rostellum bifidum, laciniisobtusis. Stigma orbicu- 

 lari-quinquangulare, margine elevatum recurvumque. Ovarium erectum, sessile, 

 tortum, apicem versus attenuatum, 6sulcatum, glabrum, c. 0.6 cm. longum, 



Sumatra: Padangsche Bovenlanden, Laras Talang, Goenoeng Talang, 

 2000 m., in the forest. (H. A. B. BiiNNEMEljER n. 5538, November 1918). 

 As quoted, Boekit Gombak, 1800 m., in forest. (H. A. B. BiiNNEMEljER 

 n. 5706, November 1918). 



