56 
AMES, 
resceniiae rigidae, obtusae. Sepola lateralia cymbifoniiia, oblonga, cari- 
nata^ 6 mm longa^ 3 mm lata; carina in apiculmn imcinatnm producta. 
Sepalum dorsale elliptico-lanceolatum^ 3-nervium, obtusum^ 6 mm longiim^ 
3.5 mm latum, breviter apiculatum. Petala falcato-ovata, obtusa, 3-nervia, 
6 mm longa, 4 mm lata, nervis lateralibus ramosis. Lahellum trilobum, 
6 mm longum; Johns medius triangiilari-ovatu.'^, 4 mm longus, 5 mm latiis; 
lohi laterales erecti colnnmam ampleetentes, rotundati, 2 mm longi, 2 mm 
lati. Columna crassa. 
m 
Luzon, Cagayan Province, Bur. ,Sci. 7970 Mawimo Ramos, April 20, 1900. 
Luisia RomosH is a stout plant, in habit similar to L, teretifoJia. The lateral 
sepals are strongly keeled near the apex, the keel passing into an elongated, 
uncinate apicula. » 
Three species of Luisia are now known to be natives of the Philippine Is- 
lands: L. valida Reichh. f., L. Foxworihyi Ames and the present one. Of these 
L, valida is not known to me. The description does not agree with any of the 
Philippine material I have examined, still its brevity loaves much to be desired.. 
402. TAENIOPHYLLUM BI. 
y 
Taeniophyilum Merrillii sp. nov. 
Radices crassac, numerosae, plus minus 4 mm in crassitiidine. Folia 
0. Scapus iiliformis, usque ad 1.7 cm longus, hispidulus, nudus. Flores 
albi 
Bacemus brevis, 3-4 mm longus. Bradeae minutae 0.5 mm longae. 
PediceUi plus minus 1 mm longi. Sepala lateralia oblongi-lanceolata, 
l-nervia, 1.25-1.5 mm longa, 0.75 mm lata. Sepalum dorsale lineari- 
oblongum. Peiala laneeolata, 1 mm longa. Sepala lateralia petalaque 
prope baaim connata. Lahellum saccatum, integerrimum, 3 mm longum, 
ad apicem rotundatum. . 
Luzon, Province of Bataan, ifount Mariveles, Merrill 3878, August, 1904, alti- 
tude above sea level about 800 m. 
This is a curious species composed of fleshy yellow-green roots 3-7 cm long. 
and filiform scapes. The minute flowers appear to open in succession The 
lateral sepals appear to arise wholly from the lip and look like lateral lobes as 
their middle nerve continues from the base into the sac. 
