DIE ORCHIDEEN VON JAVA 



von 



J. J. Smith. 



Sechster Nachtrag. . 



* Piatanthera angustata LNDL. Gen. et sp. Orch. (1835), 290; MlQ. 

 Fl. Ind. Bat. Hl, 714; KRZL Orch gen. et sp. I (1901), 647; J. J. S in 

 Fl. Buit. VI, Orch. (1905); 29.-Mecosa angustata Bl Bijdi. (1825), 404; 

 Tab. fig I. 



Rhizoma abbreviatum, radieibus crasse carnosis, teretibus. Folia radi- 

 calia erecta, petiolata, ovata ad ovato-elliptica, breviter acute acuminata, 

 curvinervia, reticulato-venosa, costa media supra canaliculata subtus ca- 

 rinata, nervo 1 subconspicuo subtus sulcato utrinque, ceteris tenuibus, 

 nervis venisque saepe supra plus minusve prominentibus, herbacea, supra 

 nitidule viridia, c. 12-14.5 cm. longa, 5-7 5 cm. lata; petiolus basi excepta 

 canaliculars, c. 4.25-9 cm. longus. Inflorescentiae erectae, laxe multiflorae, 

 pedunculo internodio infimo excepto vaginularum marginibus decurrentibus 

 costato, superne plus minusve alato, dilute viridi, ad c. 41—46 cm. longo, 

 vaginulis foliaceis c. 4 remotis patentibus sessilibus amplexicaulibus ovatis 

 acute acuminatis basi plus minusve cordatis usque ad 9.5-- 10 cm. longis 

 superne decrescentibus et in bracteas vergentibus donato, rachide serpen- 

 tina, biangulata, dilute viridi, c 17.5-34 cm. longa. Bracteae patentes, 

 rachidem semiamplectentes, ovatae, longe acuminatae, basi rotundatae cum 

 marginibus decurrentibus, virides, inferiores ad c. 1.8--2.5 cm. longae, 

 superiores decrescentes. Flores quaquaversi, patentes, recurvi, dilute viri- 

 des, c. 0.7 cm. lati, cum calcari c. 2-3 cm. longi. Sepalum dorsale erectum, 

 ovatum, obtusum, concavum, 3nervium, c. 0.67—0.85 cm. longum, 0.5--0.6 

 cm. latum. Sepala lateralia ad faucem calcaris et basin petalorum inserta, 

 reflexa, apice recurva, oblique ovato-oblonga, extrorsum falcata, apicem 

 versus angustata, obtusa, basi obliqua, convexa, 3nervia, c. 0.8-0.9 cm. 

 longa, 0.27-0 35 cm. lata. Petala erecta, basi gynostemii et labelli adnata, 

 sepalo dorsali leviter agglutinata, oblique subovato-triangula, îeviter sig- 

 moidea, apicem versus sensim angustata, anguste obtusa, margine antico 

 basi rotundato-lobata, concava, 2nervia, c. 0.7-0.9 cm. longa, 0.33-0.35 

 cm. lata Labellum calcaratum, decurvum. simplex, lineari-triangulum, e basi 

 vix dilatata apicem versus sensim angustatum, obtusum, convexum, carno- 

 sulum, dilute viride. c 1.1 cm. longum, basi 0.3—0.33 cm. latum; calcar de- 

 pendens, ovario parallelum, curvatum, teres, apice leviter attenuatum, dilüfe/v " 

 viride, c. 1.4-1.6 cm. longum. Gynostemium cum ovario angulum obtusUm 



