298 MR. R. A. ROLFE ON THE 



(also on the eastern coast, but further south), but occurring 

 again in Sumatra. Lilium Wallisii, Baker, and Viburnum luzoni- 

 cum, both endemic in Luzon, are outlying species, closely allied 

 to others from the opposite Chinese coast, where, and in Japan, 

 both genera are well represented. Clerodendron intermedium, 

 Cham., from Luzon, is closely allied to a Formosan species, and 

 again to a specie3 from Celebes but the material is not suffi- 

 cient to prove their identity. Guettardella has one species 

 endemic in Bohol, another in Hong Kong, and a third in Aus- 

 tralia ; this genus, however, is now made a section of Antimonius, 

 a more widely diffused genus : so that the two last-named ex- 

 amples may be taken to represent northern outliers of Malayan 

 genera which have extended through the Philippines. Clero- 

 dendron is strongly represented here, having nine endemic species. 

 Lactuca brevirostris, Champ., occurs in Luzon, Formosa, Hong 

 Kong, China, Japan, and Northern India. 



To return now to the Malayan element, we may trace the 

 connections with the principal Malay islands. First, then, from 

 its position we should suspect that Borneo would have the closest 

 affinity with the Philippines. This, I believe, will prove to be 

 the case ; but at present its flora is very imperfectly worked out. 

 Dasycoleum, with two Bornean and two Philippine species, has 

 already been mentioned ; also Leucopoyon suaveolens, Hook. f. ; 

 the latter confined to Borneo and Mindanao. Besides these, 

 Myristica yuatteriafolia, A. DC, formerly only known from the 

 Philippines, has now been found in the little island of Labuan 

 off North-east Borneo (Mottley 139). Dipterocarpus grandijlora, 

 Blanco, Pipturus asper, Wedd., Cyrtopera squalida. Reichb. f., and 

 Lindsaya concinna, J. Sm., are also limited to Borneo and the 

 Philippines. 



Of Celebes so little is known that it would be difficult as yet 

 to point out many very clear affinities ; some, however, undoubt- 

 edly exist. Semecarpus Perottetii, March, Aglaia macrobotrys, 

 Turcz., and Momordica ovata, Cogn., are only known from 

 Celebes and the Philippines ; but besides these a number of 

 plauts, collected at Crorontalo by Mr. Eiedel, are either identical 

 with, or closely allied to, Philippine species, but they require more 

 thoroughly working up. 



Java is better known than any of the Malayan islands, and has 

 a considerable affinity with the Philippines. Pangium edule, 

 Reinw., formerly considered endemic in Java, has now been found 



