PHIUPPINE SPECIES OF PAXDAXUS. . 67 
This species belongs to the section Keura antl perhaps* possesses narrower 
phalanges than any liitherto describeil. The racemose disposition of the syncarps 
is of very rare occurrence in tlie species of this section, wliicli is a very interesting 
and characteristic peculiarity of Pandanus hotryoides. Sometimes in this species 
the locules of the phalanges are so obscurely or indistinctly separated one from 
another that they appear almost wanting, but in other phalanges locnlo.i are 
well defined and separated by distinct interlocular furrows. 
» (9) Pandanus luzonensis Merr. in Govt. Lab. Publ. 17 (1904) G, t I 2. 
Pandanus calf/carpus Martelli in Webbia 1 (1905) 365. 
Luzon, Province of Bataan, Lamao River, For. Bur. 01 Barms, November, 
1905; Merrill 3317, October, 1905; Elmer 6662: Province of Rizal, For, Bur. 
2702 Ahern's collector. 
My diagnosis of Pandanus calycarpus was made from a few phalniigos preserved 
in the Botanical Jluseums of St. Petersburg and Munich (kindly conununicate.l 
to me by their directors) apparently of the same gathering but witliout any 
indication regarding locality or collector. Not being aware of the publication of 
Pandanus luzonensis Merrill, I described about a month afterwards in "Webbia" 
this same species under the name of Pandamts caly carpus, erroneously but not 
definitely referring it to the section finssea. I am now of the opinion that it is 
best for the present, at least, to ascribe it to the section Keura, as it is possible 
that in a general revision of the genus Pandanus I shall be obliged to take out 
the species of that section. Mr. Merrill gives a complete description of the male 
as well as of the female plant of this species and it does not seeem to me a 
Vhisoiiia. 
f HOMBRONIA, 
(10) Pandanus dubius Spreng. Syst. 3 (182(i) 897; Merrill in Govt. Lab. 
Publ. 17 (1904) 8. 
Mindanao, District of Davao, Malalag, Copeland 613, March, 1904, along tlie 
seashore, rare. 
Mr. Merrill considered that Paudatius radicans Blanco was a synonym of 
Pandanus duhius. I do not know the reasons for this identification, as Blanco's 
de=;cription of Pandanus radicans is so indecipherable that I am obliged to acknowl- 
edge my inability to guess to what of the known species it can be reduced. 
Mr. Elmer refers to Panda inis radicans a specimen which he collected in Leyte, 
and perhaps he may l)e right, as noted alx)ve. Pandanus lallfoJius Perr. in ^T^'ni. 
Soc. Linn. Paris 3 (1824) 134, is probably this species. 
(11) Pandanus utilissimus Elmer, Leaflets Philip. But. 1 (1906) 81. 
LuioN, Province of Tayabas, near Lucban, Mount Banajao, Elmer 7575, May, 
1906. 
This is a splendid species, very characteristic because of the peculiar shape of 
its drupes. Another species (not yet described) which seems allied to it was 
discovered by Mr. Giulianetti, near Port Moresby in British New Guinea, hut of 
it, only some old drui)es were sent to the Kew herbarium. 
(12) Pandanus simplex Merr. in Govt. Lab. Publ. 29 (1905) 6. 
Luzon, Province of Tayabas (Tnfanta), Tinuan River, Whit ford 782, Septem- 
her, 1904, on the tops of hills at 150 m alt. 
