URTICACE^E. 53 



crassissima linearia l mm. longa mm. lata cum segmcntis opposita apice 

 triaiigulari obtusa Jl-formiter recurvata glabcrrima. Achsenium fusco-rubescens 

 ovoideum vel ellipsoideum 1 mm. longum -f mm. latum glabrum Iseve vel 

 minuto obscureque muricatum utrinque obtusum apice stigmate minuto corona- 

 turn basi stipite -j^mm. longo stipitatum. Seminis testa fusco-rubescens mem- 

 branacea elegante minutequc tuberculato-puiictata ; albumen paucum ; embryo 

 amplus ovoideus plus minus complaiiatus ; radicula obconica cotyledones in 

 longitudinc |-plo sequans apice obtusa basi ad cotyledones abeuns haud con- 

 stricta. Lecanthus Wightii HAYATA Fl. Mont. Fornios. p. 197, (non WEDD.). 



HAB. in monte Arisan, Jan. 1912, leg. B. HAYATA et S. SASAKI. 



Near Lecanthus Wightii WEDD., but distinguishable from it by the 

 shortly tailed leaves. 



Pellionia GAUDICH. 



Pellionia arisanensis HAYATA sp. nov. (Fig. 6.) Caul is basi procumbens 

 ad nodos radicans tetragonus sursum ascendens tlensissimc brevissime hirsutus 

 sursum foliatus. Folia alterna oblique ovato-oblonga vel oblonga circ. 3 cm. 

 longa 1 cm. lata apice caudato-acuminata ad summum obtuso-acuta basi valde 

 obliqua latere superiore obtusa fracta latere inferiore minute cordata vel 

 rotundata vel subauriculata margiue basi apice exceptis acute serrata, serris 

 ascendentibus acutis utroque latere 4-5 a' se remotis, pagine utraque subglabra ; 

 petiolis 3 mm. longis, stipulis singulis extra-axillaribus setiformibus latere 

 superiore caulis sitis. Flores moiicecii vel dioecii ; flores masculini cymosi, cyniis 

 ad folia superiora solitariter axillaribus cum pedunculis 1^2 cm. longis 1-2 

 cm. latis (pedunculis circ. 1 cm. longis basi bracteis minutis 2-3 instructis 

 apice dense floriferis) sub lente minute hirsutis versus apicem ramosissimis, 

 ramis hirsutis, pedicellis ultimis glabris 1-1 mm. longis basi bracteis singulis 

 instructis, bracteis lineari-lanceolatis 3 mm. longis | mm. latis apice acutis 

 utraque pagine glabris basi haud contractis dorso infra apicem cornu singulo 

 instructis, cornibus latere complanatis mm. longis triangular! bus dorso plus 

 minus carinatis; pedicellis persistentibus apice cum flore caducissimo articulatis. 

 Alabastruni floris subglobosum versus apicem 5-cornutum glabrum. Fl. J : 

 perianthium floris apertientis 5-fidum 4mm. in diametro pallidum extus 

 viridescens intus album, tubo brevi 1 mm. in diametro, lobis patentissimis 



