7G coMrosiT.i:, 



7. Lactuca Oldhami Maxim.; in M61. Biol. IX. p. 3G3. Lctctuca Tkun- 

 hergiana Hayata (non Maxim.) ]. c. ]). 40. 



Hai5. Shinjd, Kushaku, Kelung, Tjiitd, Sliinlciku. 



As far as niy observ^ations cxtend, the speci(3s is quite distinct from L. 

 Tlmnhergiana Maxim. to which it vvas reduced by W. B. Hkmsley in his Ind. 

 ri. «in. I. p. 484. 



8. Lactuca debilis Bkxth. ct Hook.; Hayata ]. c. p. 40. 



9. Lactuca taitcensis Hayata sj). uoy. (Fii^. 31-2). Herlja lunnilis l.j- 

 20 cm. longa ramosissima. Folia radicalia vel caulina linearia .j-6 cm. longa 

 5 mm. lata apice acuminata hasi attenuata suhsessiiia subintegra memljranacea. 

 Capitula laxissime cymosa, cymis ramosissimis laxe patentibus. Involucrura 

 campanulatum ~) mm. longum basi bracteolis minutis 5 instructum, bracteolis 

 ovatis cuspidatis 1 mm. longis ; bracteis involucri lanceolatis 5 mm. longis apice 

 acutis l^ mm. iatis g]abris. riores ignoti. Acli;i3nium longe rostratum cum 

 rostris 4^ mm. lougum (rostris liliformibus 2 mm. longis) rostris exceptis fusi- 

 forme 2 mm. longum 10-costatum ad costas rugosum ; pappi setae alb^e 3 mm. 

 longas copiosa3 scabrae. 



Hab. Taito : Pinan, leg. K. Miyake. Lactuca gracilis 'Kaya.ta. (non DC.) 

 in Gen. Ind. p. 40. 



Near L. versicolor, but differs from it by the very much narrower leaves and 

 vellow flowers. 



10. Lactuca lacerrima Hayata sp. nov. (Fig. 31-1). Herba annua 30 

 cm. longa glaberrima. Folia radicalia lacerrima tenuissime membranacea in am- 

 l)itu spathulata 10-12 cm. longa l^ cm. lata, laciniis patentissimis patento- 

 serratis, basi ad petiolum longe attenuata ; folia caulina minora minus lacerata. 

 Capitula laxe cymoso-racemosa. Involucrum anguste campanulatum 5-G mm. 

 longum basi bracteolis minutis ovatis 1 mm. longis 5 instructum ; bracteis in- 

 volucri linearibus G mm. longis 1 mm. latis aj)ice obtusis apice hirsutis. Flores 

 ignoti. Achasnium maturum longe rostratum cum rostris 1 mm. longis 4 

 mm. longum longe fusiforme basi obtusum 10 costatuni ad costas minute 

 liirsutum ; pappi setsB alba3 3^ mm. long;\) scabnc. 



Haf,. Inter Busegan et Seisui, leg. B. Hayata, Mai. 1917. 



Near L. versicolor, but differs from it in liaving lacerate leaves and in 



I 



