PANDANACEAE 



79 



ANGIOSPERMAE 



( MONOCOTYLEDONS ) 



PANDANACEAE* 



PAN DAN US Linnaeus 



PANDANUS POLYCEPHALUS Lam. Encycl. 1 (1785) 372 (type!). 

 Pandanus humilis Rumph. Herb. Amb. 4: 143, t. 76. 

 Amboina, Binting and Lateri, Robinson PL Rumph. Amb. 5U, July and 

 August, 1913, in shaded places along streams at low altitudes, and in 

 forests at an altitude of about 250 meters, locally known as keker and 

 pandan keker ayer. 



Pandanus humilis Rumph. is the whole basis of Pandanus 

 polycephalus Lam., Lamarck's species being based wholly on 

 Rumphius's figure and description. Loureiro, Fl. Cochinch. 

 (1790) 603, described Pandanus humilis Lour, from Cochin- 

 China material and reduced to it Pandanus humilis Rumph. 

 There is every reason to suppose that the Cochin-China plant 

 described by Loureiro represents a species entirely different 

 from that described by Rumphius, and that Warburg was in 

 error in reducing Pandanus humilis Lour, to Pandanus poly- 

 cephalus Lam. The type of Loureiro's species is manifestly 

 the Cochin-China plant described, not the Rumphian synonym 

 cited. 



PANDANUS ROBINSON 1 1 sp. nov. § Keura. 



Pandanus spurius Rumph. Herb. Amb. 4: 142, t. 75. 

 Amboina, Paso, Robinson PI. Rumph. Amb. 30 (type), October 29, 1913, 

 along the seashore, locally known as keker laut. 



Arbor circiter 3.5 m alta, ramosa. Foliis circiter 1 m longis, 

 4.5 cm latis, aculeatis, apice longissime tenuiterque caudatis. 

 Capitulis ellipticis, 10 cm longis vel maturis majoribus, solita- 

 riis, subpendulis; drupis numerosis, obconicis, circiter 2.5 cm 

 longis vel paullo longioribus, apice 1.5 ad 2.5 cm latis, deorsum 

 angustatis, apice latis, subtruncatis, 5- ad 10-locularis, loculis 

 apice sulcis circiter 4 mm longis separatis, lobis oblique pyra- 

 midatis, acutis, brunneis, nitidis, 5 ad 8 mm diametro. 



Pandanus spurius Rumph. has been referred to many different 



* I am under obligations to Dr. U. Martelli, Florence, Italy, for deter- 

 minations of the Pandanaceae. For the proposed changes in nomenclature, 

 however, and for the discussions of the Rumphian species, I am wholly 

 responsible. 



