Smith : OrchUlaccac novae Malayenses X. Ql 



datum, marjjiiie superiore truncatum. Pes gynostemii cum ovario angiilutn 

 aciitum facieiis, late liiiearis, dimidio iiiferiore fere rectus, vix curvulus, 

 dorso 3costatLis, aiitice leviter coiicaviis et puberulus, parte superiore leviter 

 angiistatiis, iiicurvulus, apice calcariformis, totiis c. 0.8 cm. longus. Ovarium 

 ôsulcatiiiii, c. 0.4 cm. loiio^um, cum pedicello c. 0.75 cm. loiigo sigmoideum. 



Sumatra: Bataklairdeii, Siborboroug, 1100 m. (W. Gk'oenEVELDT, 

 cuit, sub 11. 1972). 



Tliis is, I tliink, best placed in Eudcndrobiunî, amoug the species with 

 the flowers on the leafy stems. I do not kiiow a near ally. 



„Racliis greenisli. Pedicel and ovary very light greeii. Sepals wliite, 

 base very light purple, tips very h'ght green, mentum transpareutly yellowish 

 greeii. Petals white with a very light purple hue, tips a little darker. Lip 

 basai half with a greenisli hue, with a purple blotch and purple hairs ; side 

 lobes with parallel purple veins, midlobe pure white. Column white, the 

 stigma bordered with a thin purple line. Anther white with a faint greenish 

 tint and a purplish blotch on the back." (E. JACOBSON). 



Description from materials preserved in alcohol, 



Bulbophyllum (sect. Dialeipanthe) linggense J.JS. n. sp. 



Rhizoma brève, repens, radicans, vaginis tubulosis mox fatiscentibus 

 et fibras paucas relinquentibus tectum. Pseudobulbi c. 6 cm. dissiti, cum 

 rhizomate angulum acutum facientes, oblique ovoidei, sicco c. 1 cm. 

 longi, Ifolii. Folium lanceolatum, subacuminatum, obtusum, basi petiolato- 

 contractum, subtus minute puncticulatum, sicco coriaceum et nervis subtus 

 prominentibus, totum c. 15—16.5 cm. longum, parte contracta 2— 2.7 cm. 

 longa, 1.8—2.6 cm latum. Inflorescentiae e basi pseudobulborum, adscen- 

 dentes, apice dense multiflorae, pedunculo firmiter filiformi, c. 24.5 cm. 

 longo, vaginulis c. 3 tubulosis donato, rachide incrassata, tereti, 3.2 cm. 

 superante, internodiis c, 0.15 cm. longis. Bracteae alternatim bifariae, erecto- 

 pafentes, rachidem amplectentes, late triangulae, apice subulato-carinatae, 

 conduplicato-concavae, punctatae, c. 0.4 cm longae. Flores intervallis 

 florentes, médiocres. Sepalum dorsale lineare, apicem versus sensim angusta- 

 tum, acutissimum, canaliculatum, 5( — 7)-nervium, c. 2.5 cm. longum, 0.34 cm. 

 latum. Sepala lateralia oblique linearia, apicem versus sensim angustata, acutis- 

 sima, basi margine anteriore paulo dilatata, conduplicato-canaliculata, 7nervia, 

 Costa média dorso prominente, cum sepalo intermedio dorso praesertim ad 

 basin minute puncticulata, c. 2.5 cm. longa, basi 0.575 cm. lata. Petala minima, 

 gynostemio adpressa, oblique transverse obloiiga, leviter rotundata, erosulo- 

 repandula, brevissime obtuse apiculata, 3nervia, c. 0.08 cm. longa, 0.18 cm. 

 lata. Labellum mobile, porrectum, supra basin recurvum, apice sensim 

 incurvulum, lanceolatum, -/s partibus superioribus subulato-acuminatum, basi 

 concavum, ceterum convexum, supra basin usque médium fere leviter 

 verruculosum, basi subtus convexum cum sulco longitudinali, carinis 2 



