16 UMBELLIFEILE. 



HAB. Kelung, Taihoku. 



Near Z. mi/sorer/sis ARN., but distinguishable from it in the much smaller 

 leaves and fruits. 



Umbelliferse. 

 Caucalis LINN. 



Caucalis scabra MAKING in Tokyo Bot. Mag. (1893) p. 44, (1895) p. 

 230; YABE Rev. Uiub. Jap. p. 27. 



Tarilis scalra DC. ; MIQ. Prol. Fl. Jap. p. 252. 



HAB. Uchitaroko, Aprili. 1917, leg. B. HAYATA et S. SASAKI. 



8ium LINN. 



Slum formosanum HAYATA sp. nov. (Fig. 9). Herba robusta. Caulis 

 100cm. longus erectus 1-1 1 cm. in diametro sectionis. Foha alterua piunata 

 herbacea, piunis oppositis 5-9 sessilibus lanceolatis 4-7 cm. loiigis 1-2 cm. latis 

 apice acamiuatis basi obtusis niargiue argute serrulatis glabris, petiolis 10 cm. 

 longis basi dilatis caulem anaplectaiitibus. Umbella pedunculata 6 cm. in dia- 

 metro, bracteis liuearibus 1 cm. lougis, radiis circ. 15 rectis 2-3 cm. longis apic;e 

 umbellnliferis ; unibellula 5-6 mm. in diarnetro, radiis 10-15 rectis 3-4 mm. 

 longis glabris, bracteolis laiiceolatis 3 mm. longis i mm. latis acuminatis inter- 

 mistis. Flores : ovarium glabrum ; calycis lobis 5 lauceolatis % mrn. longis ^ 

 mm. latis acuminatis ; petalis 5 oblougis concavis apice emarginatis f mm. 

 latis cornibus interiore recurvis ; stamiuibus 5 glabris, antheris oblongo-cordatis 

 f mm. lougis apice brevissiuie apiculatis ; discis pulviuiforniibus niargine 

 undulatis ; st} T lis 2 niinutis. Fructus rotundatus latere compressus 2 mm. 

 longus totiusque latus glaber. Carpella semi-ovoidea 2 mm. longa 1^ mm. lata, 

 jugis 5 sequaliter promiueutibus, ad commissuram plaua ; vittae ad valleculam 

 soh'tarioe. 



HAB. Atamu, leg. G. NAKAHAKA, Aug. 1905, (typus !) ; Taichu, Inriu. 



Near Slum nvpponicum MAXIM.; but distinguishable from it in the fruits 

 Avith much more prominent ridges, and in the much more minutely serrulate 

 leaflets. 



