ORCHIDACEM 



95 



17. D. AFFINE sp. nov. Pseudohulbi 2 cm. longi, graciles, 

 f usiformes. Folia lineari-lanceolata, acuta, circa 5 cm. longa, 7-9 

 mm. lata, conspicue 3-nervia. Petio- 

 lus ± 1 cm. longus. Vagince maculatse. 

 Pedunculus gracilis, flexuosus, 2-5 

 cm. longus. Inflor •escentia laxiflora. 

 Flores 4.5 mm. distantes. Bractece 

 glumaceae, acutse, 3 mm. longse, ovario 

 longiores. Sepala lateralia lanceo- 

 lata, acuta, 4 mm. longa, 2 mm. lata, 

 3-nervia, nervi duo laterales cum 

 medio, prope apicem, confluentes. 

 Sepalum super ius oblongi-lanceola- 

 tum, obtusum, 5 mm. longum. Petala 

 cuneato-ovata, vel rhombico-ovata, 

 acuta, 4.5 mm. longa, 3 mm. lata, 

 sepalis circa duplo latiora, 3-nervia, 

 nervi similes nervis sepalorum. La- 

 bellum 3-lobatum, 2 mm. longum ; 

 lobi laterales membranacei, semicres- 

 centiformes, vel falcati, rotundati ad 

 apicem, obtusi vel acuti; lobus medius 

 major, crassus, 3-lobatus, subacutus; 

 calli 3, unus ad basim lobi lateralis 



utrique, unus in media partis saccatse labelli prope columnam. 

 Columna crassa, 1.5 mm. longa, membrano conspicuo prominente 

 prope apicem. Anther a perlata. Herbce parvae, ca3spitosa3, epi- 

 phyticae, racemis florum viridium vel flavorum inodorum. 



Lamao River, Mt. Mariveles, Prov. Bataan, Luzon, October, 

 1903, E. D. Merrill (no. 3193 and 3218). — September, 1905, 

 H. N. Whitford (no. 1354). — On mossy tree trunk, fls. lemon- 

 yellow, alt. 950 m., Lamao Forest Reserve, Prov. Bataan, Luzon, 

 October 17, 1906, F. W. Foxworthy (no. 1637). 



DENDROCHILUM AFFINE 



D. pumilum, D. simulacrum, and D. affine are all very closely 

 related, although quite distinct. So far as I can judge from the 



