ORCHIDACE^ 



the narrow leaves constitute the most conspicuous differenti- 

 ating character in the recognition of this species. 



Luzon, Bontoc Subprovince, Father M. Vanoverbergh 1197^ March- 

 May 1911; Vanoverbergh 2867, April 4, 1913. 1700 meters altitude; 

 Vanoverbergh 3906, June-July 1914. 1700 meters altitude. Flowers white 

 and yellowish-brown; Vanoverbergh 4^0 J/.!, 1916. 



Coelogyne quinquelamellata Ames sp. nov. Radices fibra- 

 tae, ramosae ; pseudobulbi diphylli, 4-9 cm. longi, anguste pyri- 

 formes vel ampullacei, subtetragoni, prope basim ±1.5 cm. in 

 crassitudine, valde rugosi, juniores vaginis coriaceis acutis tecti. 

 Vaginae distichae, in sicco rigidae, ±5 cm. longae. FoHa 10-30 

 cm. longa, 1.5-4.5 cm. lata, oblongo-elliptica,utrinque attenuata, 

 acuta, valde coriacea, in sicco nervosa, erecta, scapo longiora, 

 breviter petiolata. Scapus erectus, rigidus, ±3 dm. longus, initio 

 foliis juvenilibus synanthus, versus antheseos finem hysteranthus, 

 foha demum superans,basi nudus,multiflorus,compressus.Flores 

 rubri, succedanei. Rachis flexuosa. Bracteae inflorescentiae elon- 

 gatae, 2.5 cm. longae, glumaceae, lanceolatae, acutae, ovaria 

 pedicellata superantes, cum floribus deciduae, super flores arc- 

 tissime imbricatae. Sepala lateralia 11 mm. longa, ±4 mm. lata, 

 lanceolata, acuta. Sepalum dorsale 12 mm. longum, circa 7 mm. 

 latum, ovato-lanceolatum,acutum, valde concavum,suberectum. 

 Petala linearia, 9 mm. longa, 1 mm. lata, prope apicem atten- 

 uata. Labellum simplex, 7 mm. longum, circa 1 cm. latum, trans- 

 verse ellipticum, minute apiculatum, prope basim lamellis quin- 

 que, obtuse triangularibus, erectis, 1-2 mm. longis, abbreviatis 

 praeditum. Gynostemium arcuatum, apice late alatum. 



This very distinct species belongs to the section Longifoliae. 

 It is at once distinguishable from all other members of the genus, 

 heretofore reported from the Philippine Islands, by means of 

 the five abbreviated lamellae at the base of the labellum. In 



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