152 Ames New Species of Acoridium from the Philippines. 



From Mt. Data, Distr. Lepanto, Luzon, November, 1905, E. I). Merrill 

 (Nos. 4585 (type) and 4858). 



This very distinct species, which shows clearly its affinity with Platy- 

 clinis King'd Hook f. (Icones PI. 2015) and with Dendrochilum exalatum 

 J. J. Smith, from which it is readily distinguished by its very different 

 labellum, is represented by two collections made by Elmer D. Merrill on 

 Mt. Data, on the island of Luzon. It is a most interesting addition to the 

 group standing between Plalyclinis and Euacoridium, having the habit of 

 the former and the gynostemium of the latter. 



g2. PLATYCLINIS. 

 Acoridium longilabre sp. nov. 



Pseudobulbi oblongo-fusiformes ; folia lineari-oblanceolata, obtusa, mu- 

 cronata, valde 3-nervia ; perianthii membra inter se fere aequalia, lineari- 

 oblonga, obtusa vel sub-acuta ; labellum integrum, quam sepalis petalisque 

 latius, ad basim 2-lamellatum. 



Pseudobulbs 13-33 mm. long, oblong-fusiform, clothed by nigro-punctate 

 sheaths. Leaves linear-oblanceolate, obtuse, mucronate, about 26 cm. long 

 15-18 mm. wide, prominently 3-nerved, the lateral nerves giving the leaf the 

 appearance of being marginate-winged. Lamina decurrent on the petiole, 

 which is 10 cm. long. Peduncle shorter than the leaves and petioles, 

 slender, flexuose, 20-30 cm. long. Flowers reddish-brown when dry, in 

 dense, spicate, cylindrical racemes. Racemes 7-8 cm. long. Bracts 4-5 

 mm. long, subacute, exceeding the ovary. Divisions of the perianth about 

 equally long, obtuse or sub-acute, linear-oblong. Lip much broader than 

 the sepals and petals, margin entire, 5-8 mm. long, 2 mm. wide; at base, 

 on the lateral nerves two lamellae, 1 mm. long. Apical wing of column 

 quadrate, the summit irregularly and minutely crenulate, lateral wings 

 from above the middle of the column. 



From Mt. Apo, Mindanao, alt. 5,600 ft., solitary or clustered on mossy 

 trees, April 19, 1904, E. B. Copeland (No. 1025). 



Acoridium graciliscapum sp. nov. 



Pseudobulbi fusiformes ; folia linearia, obtusa ; sepala lateralia obldngo- 

 lanceolata, sub-acuta, 1-nervia; petala lineari-oblonga, obtusa, 1-nervia; 

 labellum oblongum, integrum, bicallosum ad basim ; lacinia lateralia apud 

 summam columnam affixa. 



Pseudobulbs fusiform, 1.5-2 cm. long, clothed by closely appressed, nigro- 

 punctate sheaths. Leaves linear, tapering at both ends, obtuse, 10-15 cm. 

 long, 5-6 mm. wide, petiolate. Peduncles shorter than the leaves, about 

 15 cm. long, filiform. Raceme densely flowered, 4.5 cm. long, about 5 mm. 

 through. Bracts broadly ovate, obtuse, about 1 mm. long. Flowers small. 

 Lateral sepals oblong-lanceolate, sub-acute, 2 mm. long, about 1 mm. wide. 

 Petals slightly shorter than the sepals, linear-oblong, obtuse, 1-nerved. 

 Lip oblong, entire, bicallose, 2 mm. long. Column short, stout, apex ob 

 scurely 4-lobed or crenulate, lateral arms erect, arising from near the sum 

 mit of the column, much exceeding the terminal wing. 



