120 



ORCHIDACEM 



versus racemoso ; bracteis lineari-lanceis ovaria pedicellata super- 

 antibus ; sepalis tepalisque lanceo-caudatis, labello cuneato ob- 

 longo ligulato acuto, apice reflexo, lineis callosis conflueutibus 

 ternis a basi in discum ; columnce bifidse laciniis lateralibus 

 falcatis, cucullo circa androclinum denticulate- ; Jiores virides." — 

 Reichenbach, I. c. 



Pseudobulbs ellipsoidal, longitudinally grooved. Leaves oblong- 

 lanceolate, acuminate, acute, 10-16 cm. long, 2-2.5 cm. wide, 



prominently 7-nerved. Petiole 

 about 3.5 cm. long. Peduncle 

 longer than the leaves, without 

 imbricating bracts at the base of 

 the inflorescence. Bracts ± 6 

 mm. long, linear-lanceolate, with 

 a slender awn-like tip. Flowers 

 resupinate in a distichous raceme. 

 Sejmls and petals linear-lanceo- 

 late, prolonged into slender tips, 

 the former about 1.5 cm. long, 

 the latter 1 cm. long. Labellum 

 oblong, 4 mm. long, about 1.5 

 mm. wide, acuminate, obtuse, 

 with 3 keels or ribs which extend 

 from the base beyond the middle. 

 Column with the terminal wing 

 coarsely several-toothed ; lateral 

 4. wings triangular, acute, from 



above the middle of the column. 



Cultivated specimens often de- 

 pauperate, with the leaves not at 

 all typical of those developed in 

 the wild state. 



Epiphyte, fls. yellowish, odor sweet, faint, alt. 6400 ft., Mt. Apo, 

 Distr. Davao, Mindanao, October 23, 1904, E. B. Copeland (no. 



Dendrochilum arachnites 



1, anther cap ; 2, lip ; 3, column and lip ; 4, pollinia. 



