164 ART. I. B. HAYATA 



Lactuca Linn. 



Lactuca formosana Maxim, in Mel. Biol. IX. p. 353 ; S. Mooee 

 in Jonrn. Bot. (1875), p. 231 ; Forbes et Hemsl. Ind. Fl. Sin. 1. p. 482; 

 Matsum. et Hayata Enum. PL Formos. p. 212. 



Hab. Agincort, leg. T. Kawakami, Mai. 1907. 



DisTEiB. China : Chekiang ; Kiangsi. 



Observ. Herba validiascnla, 50-70 cm. alta, ramosa, caulibus 

 erectis ferrugineo tomentosis. Folia alterna sessilia, amplexicauKa, 

 obovata in circumscriptione, 10 cm. longa, 7 cm. lata, transversim 

 alternatimque 5-7-lobata, lobo terminali latissimo 5 cm. longo 6 cm. 

 lato, irrégularité!' lobulato transverse dentato, apice cuspidato (cuspide 

 IJ cm. longo J cm. lato), lobis lateralibus approximatis transverse 

 dispositis, ovatis 5 cm. longis 2-J-3 cm. latis, apice breve cuspidatis 

 irregulariter dentatis, dentibus acutis, lobis basilaribus minoribus 

 conformibus, (sinibus rotiindato-obtusis), basi amplexicanKa auri- 

 cnlata, auriculis 1 cm. longis et latis lacerato- dentatis utraque pagine 

 feiTUgineo-hispida, subtus ad costas venasque pilis strigosis 1-2 mm. 

 longis 1- seriatim obtecta. Capitula paniculato-cymosa. Involucrum 

 campanulatum, 1 cm. longum, ß mm. latum, bracteis 3-4-seriatim 

 dispositis, intus longissimis oblonge -lanceolati s , 1 cm. longis, 3 mm. 

 latis, apice obtusis basi leviter contractis, exterioribus gradatim 

 brevioribus, extimis minoribus ovatis 3J mm. longis 2 mm. latis apice 

 acutis basi cordatis. Flores perfecti non visi. 



Near L. brevirostris, but quite distinguishable by its transverse- 

 ly and deeply lobed leaves and by being tomentose all over the 

 plant. The leaves is like those of L. Scariola, but the former 

 are tomentose, while the latter are entirely glabrous. 



