1582 Lbaflkts or Philippine Botany [Vol. V, Art. 77 



regards as conspecific with P. secunda Lindl., is represented in 

 Lindley's herbarium by a single plant and a sketch of a flower 

 and a lip. If any reliance can be placed on Lindley's sketch the 

 lip of P. microtidis is unlike the lip of P. luzoniensis , being orbi- 

 cular, concave-pandurate as originally described, but hardly 

 answerable to Mr. Smith's description in "Die Orchideen von 

 Java." Whatever the final conclusion in this matter may be it 

 is clear that geographical limitations are perhaps the most indic- 

 ative at this time of the proper place to draw the lines of segre- 

 gation. 



Island of Negros: Province of Negros Oriental, Dumaguete 

 (Cuernos Mts.), June, 1908, A. D. E. Elmer, 10252. 



Small tufts attached to coarse bark of hard wood trees in a 

 deep moist ravine at 2500 feet altitude. 



Phreatia negrosiana sp. nov. (§ Euphreatia.) 



Herba minutissima, pedunculus multo folium excedens. 

 Pseudobulbi nulli, caules valde abbreviati, complanati, circiter 

 I cm. longi. Folia disticha valde coriacea, circiter 2.5 cm. longa, 



3 mm. lata, ad basim articulata, oblongi-lanceolata, obtusa, 

 falcata, margine irregulariter denticulato, diaphano. Pedun- 

 culus 7 cm. longus, gracilis erectus, infra racemum bracteatus. 

 bracteis subinfundibuliformibus ± 4 mm. longis. Racemi circiter 



4 cm. longi. Bracteae lineari-lanceolatae, acuminatae, acutae, 

 circiter 2 mm. longae. Flores in siccitate albidi, minutissimi, 

 circiter 2 mm. in diametro. Sepala lateralia, ovato-lanceolata, 

 acuta, usque ad 1 mm. longa. Sepalum dorsale, simile, acutum 

 vel obtusum. Petala linearia, obtusa, 1-nervia, sepalis multo 

 angustiora. Labellum unguiculatum, vix 1 mm. longum, 3-ner- 

 vium, dilatatum, parte dilatata cordata vel late ovata, rotundata. 

 Columna minuta. 



Phreatia negrosiana is closely related to P. luzoniensis Rolje, 

 from which it is clearly separable by its elongated, slender inflo- 

 rescence. It is also near P. minutiflora Lindl. 



Island of Xegros: Province of Negros Oriental, Dumaguete 

 (Cuernos Mts.), May, 1908, A. D. E. Elmer, 10148. 



