180 



ORCHIDACEM 



mm. long, acute. Upper sepal similar to the laterals, broader. 

 Petals spathulate, acute, spotted on the lower half with purple, 18 

 mm. long. Labellum 3-lobed, lobes subequal ; lateral lobes broadly 

 cuneate, 15-16 mm. long, 11 mm. wide; middle lobe subreniform, 

 apiculate, 1 cm. long, 17 mm. wide ; on the disc in front of the 

 narrow claw a 3-lobed callus. 



Epiphyte, fls. white with purplish streaks and dots and dark 

 veins of the lip purplish, alt. 900 m., Mt. Mariveles, Prov. Bataan, 

 Luzon, February 13, 1905, H. N. Whitford (no. 1083). 



My material is, without much doubt, D. macrophyllum Rich., 

 although it differs in a few minor details from the common forms 

 of the species. According to the specimens I have seen from New 



Guinea and other sources at the her- 

 baria of Kew and the British Museum, 

 D. macrophyllum appears to be a va- 

 riable, polymorphic species. 



Borneo (v&r.Dayanum Hort.,Low), 

 Java, Amboina, Ternate, New Guinea. 



D. (§ Strongyle) MARIVELENSE 

 sp. nov. Aff. D. capntellato J. J. 

 Smith atque D. kentrophyllo Hook, 

 f . Planta parvum ramosa vel simplex, 

 ± 2.5 dm. alta, erecta, adscendens 

 vel fere prostrata. Caules teretia vel 

 aliquid compressa. Folia 1.5-3 cm. 

 longa, teretia, in apicem acutum sen- 

 sim decrescentia, lateraliter compressa, 

 diametro majore circa 3 mm., 1-2 cm. 

 distantia. Pedicelli 1 cm. longi, quis- 

 que bractea parva, scariosa, lanceolata, 

 acuta subtentus. Flores solitarii, ± 2 

 cm. lati, oppositif olii, albi praeter macu- 

 lam gilvam in labello. Sepala latera- 

 lia late falcato-lanceolata, apice valde 



DENDROBITJM MARIVELENSE 



