Dec., Mis.] q. ROWZUMI -.—CONTRIBUTIONES AD FLOBAM. 251 



Nom. Jap. Himemasaki (nov.) 



Distr. Bonin : insl. Chiclrishima, Sakaiura (lg. S. Nishimura ! 



no. 332.), Sigureyama (lg. S. Nishimura ! no. 21, April 29, 



1916.) 



Quercus (Cyelobalanopsis) yayeyamensis Koidz. n. sp. 



Hacc species 0. Miyagii Koidz. valde affinis, seel folia subtus lmud 

 glauca. 



Arbor; geinma laneeolata 15 mm. longa, squatnis exterioribus 

 ovatis interioribus lanceolatis ; foliis junioribus laxe sericeo-pubesccnti- 

 bus, adultis glabris, in specimina sicca subtus glaucescentibus, lan- 

 ceolatis obtuse acuminatis, basi rotundatis et subito acute decurrentibus, 

 8—12 cm. longis, 2,3—4,0 cm. latis, margfne fere integris raro versus 

 apicem mucronato-serrulatis, nervis secundariis eirc. 10—11 arcuato- 

 asceudentibus ; petiolis circ. 8-12 mm. longis. Cupula lignosa hemis- 

 phaerico-subpatelliformis circ. 3—2 cm. in diametro, 8—1,5 cm. alta, 

 intus tomentosa, extus laminis annularibus 7—9 basi tomentosis margine 

 crenatis praedita ; pedicellis clavatis 4—5 mm. longis. Glaus ovoidca 

 22-24 mm. alta basi 20-24 mm. lata basi vcrticeque tomentosa, apice 

 suljito apiculata, basi grossc depressa. 



Nom. Jap. Yayeyamagashi (nov.) 



Distr. Luchu : Yaycyama islands, (leg. K. Naito !) 



Ficus (Eusyce) Nishimurae Koidz. n. sp. 



Species F. boninsimae Koidz. proxima, differt foliis crassioribtis late 

 ellipticis vel orbiculari-cllipticis apicc rotundatis. 



Arbuscula glabra ramis vetustioribus griseo-fuscis liornolinis fuscis. 

 I' Jia rigide coriacea late vel orbiculari-elliptiea 8—13 cm. longa 5V2-10 

 cm. lata apicc rotundata raro obtusissima basi rotundata margine 

 integerrima, nervis secundariis utraque latere 6-8; petiolis 2'_— 3'l' cm. 

 longis. Keee|)tacula $ glabra in axillis foliorum soliLaria vel geminata, 

 6-9 mm. in diametro, intus glabra ostiolo non prominente ore multi- 

 braeteolato, pedimculis 5-8 mm. longis, floribus S cecidiophoris el 

 bracteis ovatis intermixta. I'l. t : pedicellati vel sessiles, diandri, ueri- 

 gonii segment is 3-4 ovatis acutiuseulis vel obtusis, anther a late 

 elliptica carnosnla, filamentja brevissimis ; floribus cecidiophoris sessili- 

 1 his vil pedicellatis tepalis 3—4. 



Nom. Jap. Oh-tokiwa-innbiwa (nov.) 



D18TR. Bonin: insl. rlahajima (lc^. S. Nishimuka! no. 104-, 

 Oct. 21, 1917.) 



Thea (Camellia) tegmentosa Koidz. 11. sp 



