-. 22 — 



utrinque in lacinu'am hiimilem medio in denticulum obtusuni productam 

 dilatata, dimidio superiore infra apicem fasciculo /\ foimi appendiciiim 

 Sserialium erectarum lateraliter conipressarum linearium raniosariiin ad c. 

 0.33 cm. longaruni instiucto. Gynosteminm cum ovario an^i^ulum obtusiim 

 faciens, gracile, leviter undatum, subtus subpltiniim, longitudinaliter strio- 

 latiim et infia apicem iiberum fasciculo iaxo appendicium serialium paten- 

 tissimarum ramosarum linearium ad. c. 0.35 cm. lougarum, inferius non- 

 nullis appendicibus brevioribus sparsis instructum, apice tiuncatum cum 

 gibbo brevi, c. 3.2 cm. longum, cliiiandrio concavo, quadrangiilo, apice 

 dentato. Anthera cucuUata, quadrangula, medio constricta et recurva, apice 

 quam basin paulo angustior, late rotundata et levissime late retusa, dimidio 

 inferiore inconspicue longitudinaliter sulcata, basi retusa, c. 0.35 cm. lata. 

 Rostellum late transverse quadrangulum, truncatum. Stigma transversum, 

 margine inferiore valde elevatum, cum rostello bilabiatum. Ovarium cum 

 flore articulatnm, quam gynostemium multo tenuius, a dorso compressum, 

 sectione transversa ellipticum, c. 3.7 cm. longum, 0575 cm. latum. Fructus 

 immaturus sectione transversa elliplicus, basi paulo contractus et rachide 

 aequilatus, 17,5 cm. longus, 1.6 cm. latus. 



Bornéo: Koetei, Soengei Djoiigkang, Tengaroeng, abund;int in the 

 swampy forest of the lowland. (W. C. van Gelder no. 1, fl. and fr. in 

 March 1918). Soengei Landak. (J, E. Teysmann, without number). Kapoeas. 

 (J. E. Teysmann n. 10898). 



Apparently near V. platyphylla Schltr. from Celebes, but with very 

 strong and dense inflorescences, larger flowers, not acuminate sepals, a 

 more complicate lip with the squamae not lacerate but only minutely den- 

 ticulate, the column not puberulous but with linear appendices similar to 

 those at the apex of the lip. 



„Stems 10 — 20 m. long. Flowers vvhite. Fruits only 1 — 2 in a raceme, 

 when ripe c 25 cm. long, more or less laterally compressed, 2 cm. diam., yellow- 

 ish brown. Grovving in moderately dense forest on swampy land, which 

 is overflowed by high water. 



The fragrance of the fruits is the same as that of the common vanilla 

 but not 80 strong." (W. C. van Gelder). 



Description from a living plant and an inflorescence with flowers and 

 an unripe fruit preserved in alcohol. 



1 seize the opportunity to redress an error. Vanilla ramosa J. J. S. 

 (non ROLFE) in Fedde Rep. XI (1912), 130 and Nova Guinea XII (1915), 

 187, t. LXll, 100, is to be changed in V. r a m i f i c a n s J. J. S. 



Vanilla s u m a t r a n a J. J. S. n. sp. 



Caulis elongatus, scandens, ad nodos 1 radicem emittens, internodiis 

 c. 8 — 9 cm. longis. Folia ovato-oblonga, acuminata, sicco coriacea et multi- 

 nervia, c. 15—16 cm. longa, 5 — 6 cm. lata, basi in petiolum canaliculatum c. 

 1.2 — 1.3 cm. longum contracta. Inflorescentiae subsessiles, simplices, dense 

 multiflorae, rachide crassa, valde angulata, c. 3.7—6 cm. longa, 0.65— 0.75 

 cm. diam. Bracteae 5seriales, patentissimae, late trian^ulae et leviter obtuse 



