NEW 01^ NOTEWORTHY ORCHIDS 
Acoridium Serraioi resembles in habit A. Curranii 
Ames, from which it differs in the mid-lobe of the labellum 
and in the form of the petals. 
Philippines, Luzon, Laguna Province, Juan S. Serrato 
^ s. n., September 1912. Flower while, nearly yellow. On 
tree in dense forest. (Type in Herb. Ames No. 26728.) 
Dendrochilum pangasinanense Ames sp. nov. Rhi- 
zoma validum, breve iit videtur. Pseudobulbi congesti, elon- 
gati, semifusiformes, longitudinaliter sulcati, in sicco fla- 
vescentes, monophylli. Folia petiolata, elliptico-oblonga, 
utrinque angustata, coriacea. Racemi folio juvenili synanthi, 
pedunculos nudos terminantes. Bracteae inllorescentiae 
glumaceae, subtruncatae, plus minusve erectae, paleaceae, 
multinervosae, ovarium bene pedicellatum subaequantes. 
. Sepala lateralia quinquenervia, lanceolata, patentia, acuta. 
Sepalum dorsale siibsimile, quinqiienervium, aciitum. Pe- 
tala anguste elliptica, subobtusa, trinervia. Labellum tri- 
lobatum, carnosum; lobis laLeralibus erectis, obtusis; lobo 
^ \ medio late ovato, acuto, per medium leviler et late sulcato. 
Discus tricarinatus carina media abbreviata. Columna 
valde arcuata, apice obscure crenulato; alae laterales ter¬ 
minals nonnihil ad apicem inaequaliler bilobulatae, lobiilo 
inferiore elongato triangulo. 
Rhizome stout, abbreviated, with the pseudobulbs more 
or less crowded. Roots whitish, fibrous, branched. Pseudo¬ 
bulbs about 4.5 cm. long, erect, slenderly semifusiform, 
deej ly wrinkled longitudinally when dry, yellowish, when 
mature subtended by the fibrous remains of elongated 
sheaths, monophyllous. Leaf pctiolate; lamina of mature 
leaf about 10 cm. long, 21 mm. wide at the middle, elliptic- 
oblong, nervose; petiole 2 cm. long, terete below the middle, 
1 when immature Ihe leaf embraces the erect peduncle and is 
subtended by four tubular sheaths. Peduncle with the 
raceme up to 25 cm. long, naked below. Raceme about 
1 dm. long, slender, bearing about fifteen flowers. Bracts 
of the raceme about 5 mm. long, glumaceous, nervose, sub¬ 
truncate, equaling the ovary. Lateral sepals 8 mm. long, 
3.5 mm. wide, lanceolate, acute, 5-nerved. Dorsal sepal 
29 
