ORCHIDACEM 197 



Philippine collections. This species appears to be E. ring ens 

 Reichb. f. and is not comparable with E.polyura, differing from 

 it in the floral characters, as well as in the foliage. The figure in 

 Edwards's Botanical Register shows the characteristics of the type 

 and agrees with the Philippine specimens collected by Williams in 

 central Luzon. 



Flowers pale red, 3000 ft. above sea-level, upper Lamao River, 

 Mt. Mariveles, Prov. Bataan, central Luzon, January 2, 1904, 

 R. S. Williams (no. 433). — Camp Keithley, Lake Lanao, Min- 

 danao, November, 1906, Mary Strong Clemens. — Baguio, Prov. 

 Benguet, Luzon, March 18, 1904, A. D. E. Elmer (no. 5984). — 

 Mt. Mariveles, Luzon, 1904, D. L. Topping (no. 471). — Epiphyte, 

 fls. yellow, Antipolo, Prov. Rizal, Luzon, January, 1907, Maximo 

 Ramos (no. 2173). — Mt. Mariveles, 1904, D. L. Topping (no. 

 471). — pi C o, Prov. Benguet, Luzon, March, 1904, A. D. E. Elmer 

 (no. 5984). — Epiphytic, Lamao River, Mt. Mariveles, May, 1904, 

 H. N. Whitford (no. 322). — November, 1904, A. D. E. Elmer 

 (no. 7027). 



Endemic. 



E. (§ Hymeneria) RETROFLEXA Lindley Journ. Linn. Soc. 

 3: 60 (1859); Miquel Fl. Ind. Bat. 3 : 662; Vidal Phan. Cum. 

 Phil. 149 and Rev. PI. Vase. Fil. 268. — Pinalia retroflexa 

 Kuntze Rev. Gen. PI. pt. 2, 679 (1891). 



" Foliis anguste oblongis spicis tenuibus duplo longioribus, 

 bracteis oblongis glabris retrofiexis, floribus glabris, sepalis peta- 

 lis labelloque subaequalibus ovatis acutis." — Lindley, I. c. 



Stems elongated, rather stout, 22-24 cm. high, about 1 cm. 

 thick, leafy at the top. Leaves about 4 in number, approximate, 

 9-11 cm. long, 3-3.5 cm. wide, elliptic-oblong, subacute. Pedun- 

 cle and raceme about 1 dm. long. Bracts 5 mm. long, lanceolate. 

 Flowers 25 more or less, about 1 cm. long, yellowish white with 

 pink lips. Lateral sepals narrowly triangular-lanceolate, 9 mm. 

 long, about 2 mm. wide at base. Upper sepal linear-oblong, 9 



