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JOURNAL OF THE ARNOLD ARBORETUM 



[vol. I 



very difficult of access. None of them rise more than a few hundred feet above sea- 

 leveL Three are treeless and uuuihabited; on the otiiers a few fishermen live. In 

 1914i I visited Yaku-shima where PiTiiis Thunhergii Pari, is indigenous and in 1917 

 Oshima where Pinu^ lutchuensis Mayr grows. In relation to the geographical dis- 

 tribution of these two Pines it seems desirable to know what species grew on the 

 intervening Kawanabe Islands. 



On my return to Kago-shima from the Liukiu Islands in March. 1917, 1 discussed 

 the matter with Dr, Naito, chief of the local forestry bureau, to whom I was greatly 

 indebted for valuable assistance in 1914 and again in 1917. Dr. Naito shared my 

 view on the importance of this subject and detailed one of his assistants to make a 

 tour of the islands and to collect all the Conifers he found there. Mr. Ushiwo, who 

 had been my companion to the Liukiu Islands, was selected for the task and he 

 most successfully carried it out. He visited the principal six of the eleven islands. 

 Of the other five, three he states are treeless and on the other two he was unable to 

 land. The tides and currents are very strong and it is only at certain seasons that 

 fishing boats can make a landing. Mr. Ushiwo collected specimens and compiled 

 a list of all the woody plants found on the six islands he visited. The list is phyto- 

 geographically of much importance and is here published as an appendix to the 

 preceding account of the Liukiu Islands. The Conifers were sent to me for deter- 

 mination and it is interesting to note that the only Pine that grows there is Pinus 

 luchuensis Mayr. 



Mr. Ushiwo in his list enumerates 114 species and 13 varieties beloTiging to 93 

 genera of 53 families. Of these Rhododendron indicum var. eriocarpum Hay. appears 

 to be endemic. If comparison be made with my list of Liukiu plants it will be seen 

 that the woody vegetation of the Kawanabe Islands is essentially the same as that 

 of the Liukiu Islands. It appears that on Yaku-shima and Tanega-shima most 

 of the typical woody plants of Japan reach their southern limit. 



E. H. Wilson 



CYCADACEAE 



Cycas revoluta Thunb. 



TAXACEAE 



Podocarpus macrophyllus D. Don 

 Podocarpus nagi Zoll. & Moritzi 



PINACEAE 



Juniperus conferta Pari 

 Pinus luchuensis Mayr 



PANDANACEAE 



Pandanus tectorius Soland. 



GRAMINEAE 



Arundinaria linearis Hack 

 Arundinaria tootsik Mak. 



PALMAE 



Didymosperma Engleri Warb 

 Livistona chinensis R. Br. 



LILIACEAE 



MYRICACEAE 

 Myrica rubra S. & Z. 



SALICACEAE 

 Salix purpurea L.? 



BETULACEAE 



Alnus firma var. hirtella Schneid 



FAGACEAE 



Castanopsis cuspidata Schottky 

 Castanopsis edulis Mak. 

 Quercus glauca Thunb. 



ULMACEAE 



Celtis sinensis var. japonica Nak 

 Trema oriental is Planch. 



Smilax china L. 



MORACEAE 



Ficus erecta Thunb. 

 Ficus nervosa Heyne 

 Ficus pumila L. 



Ficus retusa var. nitida Miq 

 Ficus Wightlana Benth. 

 Morus bombycis Koidz. 



