ORCHIDACEiE 



broader at the base, by the uniformly larger perianth, and by the 

 slightly different lip. D. tumoriferum J. J. Sm. has far shorter 

 leaves, acute petals, smaller sepals, and a different lip from Z>. 

 ohlongum. In habit D. hypodon Schltr. is similar, but the present 

 species has longer broader leaves, lateral instead of terminal in- 

 florescences and larger obtuse petals. 



As is often the case in this section of Dendrobium, the flowers 

 are in rather poor condition. Similar but flowerless material, 

 apparently belonging to this species, was collected by Clemens. 

 The name is in reference to the lip. 



KiNABALU, Haslam (Type), July- August 1916. Kiau, Clemens 334-, No- 

 vember 1915. 



10. Dendrobium (§ Aporum) patentilobum A.Ss^S. sp. nov. 

 Caulis erectus vel suberectus, sinuosus, vaginis foliorum fere om- 

 nino obtectus, parte superiore sine foliis. Folia disticha, equitan- 

 tia, anguste linearia, late patentia, falcata, decurva, obtusa vel 

 subacuta, rigida. Flores singuli, e nodis superioribus exorientes. 

 Sepala lateralia ovato-triangularia, obtusa vel subacuta, obliquis- 

 sima, mentum conspicue saccatum formantia. Sepalum dorsale 

 ovato-lanceolatum, acutum vel subacutum. Petala oblonga vel 

 elliptico-oblonga, obtusa vel acuta. Labellum trilobatum, ungui- 

 culatum ; unguis parvus, oblongus ; lamina abrupte reflexa ; lobi 

 laterales latissime patentes, rotundato-ovales ; lobus medius sub- 

 orbicularis, profunde bilobatus, lobuli semiorbiculares approx- 

 imati; carina transversa inter lobos laterales extendit; callus 

 angustus V-formis basim propius stat. Gynostemium breve, 

 crassum, pede valde saccato praeditum. 



Rhizome not seen. Plant erect or nearly so. Roots fibrous, 

 fiexuous, glabrous, sparingly branched, up to 1 mm. thick. Stem 

 up to 44 cm. in height, sinuous, strongly complanate fi'om a 

 slender subterete base, almost entirely enveloped by the leaf 



[110] 



