56 
AMES. 
rescentiae rigidae, obtusa.e. Sepala lateralia cymbiformia, oblonga, cari- 
nata, 6 ram longa, 3 ,mm lata ; carina in apicnlum nncinatum prodncta. 
Sepalum dorsale ellipticodanceolatum, 3-nervium, obtusum, 6 mm longum, 
3.5 mm latum, breviter apiculatum. Petala falcato-ovata, obtusa, 3-nervia, 
6 mm longa, 4 mm lata, nervis lateralibus ramosis. Labellum trilobum, 
6 mm longum; lobus medius triangulari-ovatus, 4 mm longus, 5 mm latus ; 
lobi laterales erecti columnam amplectentes, rotundati, 2 mm longi, 2 mm 
lati. C blumna erassa. 
Luzon, Cagayan Province, Bur. Sci. 7970 Maximo Ramos, April 20, 1909. 
Luisia Ramosii is a stout plant, in habit similar to L. teretifolia. 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 Reiclib. f., L. Foxworthyi 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 leaves much to be desired. 
402. TAENIOPHYLLUM Bl. 
Taeniophyllum Merrillii sp. nov. 
Radices crassae, numerosae, plus minus 4 mm in erassitudine. Folia 
0. Scapus filiformis, usque ad 1.7 cm longus, hispidulus, nudus. Flores 
albi. Racemus brevis, 3-4 mm longus. Bracteae minutae 0.5 mm longae. 
Pedicelli plus minus 1 mm longi. Sepala lateralia oblongi-lanceolata, 
1-nervia, 1.25-1.5 mm longa, 0.75 mm lata. Sepalum dorsale lineari- 
oblongum. Petala lanceolata, 1 mm longa. Sepala lateralia petalaque 
prope basim connata. Labellum saccatum, integerrimum, 3 mm longum, 
ad apicem rotundatum. 
Luzon, Province of Bataan, Mount 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. 
