ORCHIDACE.E 



Orchidace^e 2 : 179. Smith relies on the smaller dimensions, the 

 color, the narrower side lobes of the labellum, and the different 

 callus for specific distinction between D. ternatense and D. ma- 

 crophyllum. 



Luzon. Apparently rare in the Philippines. 



75. Dendrobium topaziacum sp. nov. Flores aurantiaci. Herba 



epiphytica, usque ad 6 dm. alta, caules 5-8 mm. in diametro (in 



sicco) multi-articulati, in longitudinem valde sulcati. Folia sub- 



membranacea, oblongi, acuta, ad basim rotundata, 7-14 cm. 



longa, 1.5-2.8 cm. lata. Vaginas foliorum internodiis asquilongag, 



2-2. 5 cm. longa?. Racemi abbreviati, laxiflori, in caulibus defoli- 



atis. Rhachis vix 1 cm. longus. Bracteae inflorescentise in sicco sca- 



riosa?, pellucidas, quam pedicelli multo breviores. Pedicellus cum 



ovario circiter 1 cm. longus, usque ad 1.3 cm. longus. Flores usque 



ad 1.7 cm. longi. Sepala lateralia erecta, oblique triangularia, 



acuta, cum mento circiter 1.5 cm. longa. Sepalum dorsale lanceo- 



latum 6 mm. longum, circiter 3.25 mm. latum. Petala oblongi- 



spathulata, subacuta, 6 mm. longa, circiter 2 mm. lata. Mentum 



1 cm. longum, obtusum, circiter 3 mm. in diametro, ad basim, 



antice clausum. Labellum anguste oblanceolatum, vel spathula- 



tum, ecallosum, 1.5 mm. longum, circiter 3 mm. latum. Columna 



brevissima, circiter 2 mm. longa, in pedem 8 mm. longum, pro- 



ducta. 



Leyte, Dagami, C. A. Wenzel 0202, July 17, 1913. Epiphyte in forest. 

 Altitude 60 meters. Flowers red and yellow. 



76. Dendrobium ( § Desmotrichum) unicorne sp. nov. Aff. D.pari- 

 etiformi J. J. Smith. Caulis ramosi internodio terminali pseudo- 

 bulboso, cylindrico monophyllo. Folium oblongi-ellipticum, val- 

 dissime coriaceum, in sicco rigidum, 2-2.6 cm. longum, circiter 

 1 cm. latum, marginatum, ad apicem bidentatum, breviter petio- 

 latum. Pseudobulbi in sicco valde rugosi usque ad 1.7 cm. longi, 



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