ORCHIDACE^ 



sulcatus, erectus. Lamina folii 1-1.5 dm. longa, 2-3 cm. lata, 

 valde coriacea, ad basim attenuata. Scapus circiter 1 dm. longus, 

 infra racemum bracteatus, bracteis vaginantibus imbricantibus 

 obtectus. Flores flavidi, sublaxi, in racemo elongato dispositi. 

 Racemus usque ad 7 cm. longus. Bracteas inflorescentise lanceo- 

 late, acuminata?, acuta?, usque ad 6 cm. longae, in sicco fusco- 

 lutese. Pedicelli circiter 3 mm. longi, graciles. Sepala lateralia 

 circiter 6 mm. longa usque ad 2 mm. lata, triangulari-lanceolata, 

 valde acuta, acuminata, ad apicem carinata, ad basim mentum 

 brevem, obtusum, formantia. Sepalum dorsale lanceolatum, acu- 

 minatum, acutum. Petala subspathulata, ad apicem incrassata, 

 obtusa, vix 3 mm. longa, uninervia. Labellum elongatum, lingu- 

 latum, vix 5 mm. longum, incrassatum, acutum, prope basim de- 

 flexum, conduplicatum vel sulcatum, ad basim leviter bicallo- 

 sum. Columna brevis, breviter bicuspidata. 



Bulbophyllum leytense is a member of the puzzling group to 

 which B. dasypetalum Rolfe and B. Vanoverberghii Ames be- 

 long, a group without the well-developed pseudobulbs that char- 

 acterize the section Aphanobulbon proposed by Schlechter. The 

 inflorescence is much shorter than the leaves; the scape below 

 the raceme is concealed by inflated, loose, imbricating sheaths. 

 In B. Vanoverberghii and B. dasypetalum the scape normally 

 exceeds the leaves in length and lacks, at least when mature, the 

 distinctive appearance caused by the imbricating bracts of B. ley- 

 tense. Another characteristic of B. leytense which is serviceable 

 for purposes of identification is the elongated labellum, which is 

 4 mm. long from the tip to the point where the sides become 

 conduplicate. 



Leyte, Ormoc, C. A. Wenzel 098, May 18, 1913. On trees near streams 

 in the foothills. 



[ 179 



