ORCHIDACE^ 



JDendrohium patentilobum is a very variable species in all its 



parts. In habit it resembles D. ventricosiim Kranzl. and Z>. Mac 



Farlanei F. v. MuelL, but has very different flowers. It is unlike 



D. Smithianum Schltr. in its longer leaves and in its very distinct 



petals and lip. Z). calceolum Roxb. has flowers that are larger and 



differently colored. 



Marei Paeei Spur, Clemens 366 (Type), December 1915. Flower purple 

 and cream color; Clemens 226, November 1915. Flower purple and cream 

 color. 



1 1. Dendrobium ( § Desmotrichum) pseudoconvexum ^ w£?5 

 Orch. 5 (1915) 135. 



KiAU, Clemens 68, November 1915. 3000 feet altitude. Flower wine-red. 



12. Dendrobium (§Nigro-hirsuta) reticulatum J. J. Sm. 

 in Bull. Jard. Bot. Buitenzorg 13 (1914) 18. 



KiNABALU, Dumas. 650 feet altitude. In sparse woods, rare. 



13. Dendrobium (§Grastidium) singulare A. &^ S. sp. nov. 

 Herba eximia. Radices simpUces, fibrosae, subflexuosae, rigidae. 

 Caulis suberectus, complanatus, vaginis foliorum omnino obtec- 

 tus. Folia disticha, anguste lanceolata, rigida, patentia, apice bi- 

 lobata, basi rotundata amplectentia, contorta. Flores e glomeru- 

 lis bractearum exorientes. Perianthium carnosum, connivens. 

 Sepala valde concava. Sepala lateralia late triangularia, obtusa, 

 mentum conspicue saccatum formantia. Sepalum dorsale ova- 

 tum, obtusum. Petala linearia, subacuta. Labellum in circuitu 

 cuneato-flabellatum, quadrilobatum ; lobi laterales cuneato-ligu- 

 lati; lobus medius profundead callum bilobatus, lobuHs lineari- 

 bus quam lobis lateralibus multo minoribus, basi callo carnosis- 

 simo tridentato obtecta. Gynostemium breve, crassum. 



Roots simple, fibrous, subflexuous, rigid, often longitudinally 

 sulcate, more or less provided with black spreading hairs espe- 

 cially the older parts, ±1 mm. thick. Stem about 26 cm. tall, 



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