108 JOURNAL OF THE ARNOLD ARBORETUM [vol. i 



The Pscudixus is a pest and grows on nearly every kind of sliru]) and tree. 

 The Piper, Proeris, Sanihueus, Boehmeria and tlie two Oldenlandias are not 

 very woody; tlie first tliree are common as undergrowtli in moist shady 

 places and tlie two latter prefer more sunny places. The Caesalpinia, 



* 



Wikslroemia, Statice, Vitex, Lycium, Myoporum, Tournefortia, Lobeha 

 and the Seaevola are littoral i)lants. The Myoporum I did not see, but it 

 was described from riiichi-jima by Koidzumi in 1918. The Vitex is a useful 

 plant for holding down sand, shingle, and loose earth, and is always found 

 at and near sea-level. The Seaevola, witli its fleshy leaves and stiff branches, 

 is one of the most common shrubs on the island from sea-level to a few hun- 

 dred feet above in open windswept i)laces, and is quite a handsome plant. 

 The Tourncfurtia is rare and I saw a few plants in two localities only, the 

 Lycium I only saw on Muko-jima on bare rocks within reach of the sea\s 

 spray, but the Lobelia is common in many places but in none more so, how- 

 ever, than in Muko-jima; it is an interesting extension of the knowm dis- 

 tribution of the genus. The Statice I did not see growing and it is prob- 

 ably wrongly determined. Tlie Wikstroemia is widely scattered and is 

 quite common. The wide-spread Cacsalpinia is not very abundant; tlie 

 Pittosporum is plentiful and is remarkable for its globose, woody, strongly 

 decurved fruit. I was much interested to find Osleonicles anllnjllidijolia 

 Lindl. wliich seems to be identical with the Hawaiian plant. It is absent 



from Ilaha-jima but is common on Chichi-jima, Ani-jinia and other islands. 

 When growing freely its slender branches arch gracefully and the leaves are 

 only slightly hairy, and from this it varies to a stunted shrub hugging rocky 

 ground with leaves densely covered with a white tomentum. The fruit is 



said to be as often wliite as black and is edible, being considered a wild j)him 

 by the Bonin Islanders. The two Rutaceous shrubs are uncommon and so 

 is Ilex Matanoana Mak., but the other Ilex is very ])lentiful; its thick, 

 shining green leaves are reddish when young and are variable in size; some- 

 times it is almost a tree. It is the plant referred to by Hooker & Arnott 



{Botany oj Bccchcys Voyage, 2(51)- Makino has described (in Jour, Jap, 

 BoL I. 21 [1917]) an Ilex bonincola, but from the description I think 



this is simply a state of his Ilex Matanoana with large leaves such as are 

 found on free-growing shoots. The Evonymus is rather rare, at least 

 on Haha-jima where I collected it. It is well figured by Hooker & Ar- 

 nott (1. e. 54, 261) who erroneously referred it to Evonymus japonicus 

 Thunb. The Dodonaea and Eurya are common and call for no special re- 

 mark, but tlie Stachyurus is rare and though similar to the Japanese species 

 in habit and flowers has a remarkably large, rounded fruit. It is a very dis- 

 tinct and interesting addition to the genus. The Eugenia honinensis Koidz, 

 I did not see, but the other species is a common shrub, from O.G to 2 m. 

 tall with edible fruit, and is often stoloniferous in habit. It is a feature of 



the rather bare hilltops of Ani-jima. The Melastoma I did not see and the 

 Vaccinium only on Ani-jima where it is a bush from 2 to 3 m. liigh. The 

 Symplocos I did not see growing, the specimen being given to me by Mr, 



Otomo. The Ligustrum Is very plentiful and differs in no way from s])eci- 



