V O COMPOSITE. 



7. Lactuca Oldhami MAXIM.; in Mel. Biol. IX. p. 363. Lactuca Tkun- 

 lergiana HAYATA (non MAXIM.) 1. c. p. 40. 



HAB. Shinjo, Kushaku, Kelung, Taitd, Shinluku. 



As far as my observations extend, the species is quite distinct from L. 

 Thunbergiana MAXIM, to which it was reduced by W. B. HEMSLEY in his Ind. 

 Fl. Sin. I. p. 484. 



8. Lactuca debilis BENTH. et HOOK.; HAYATA 1. c. p. 40. 



9. Lactuca taitoensis HAYATA sp. nov. (Fig. 31-2). Herba linmilis 15- 

 20 cm. longa ramosissima. Folia radicalia vel caulina linearia .3-6 cm. longa 

 5 mm. lata apice acuminata basi attenuata subsessilia subintegra membranacea. 

 Capitula laxissime cymosa, cymis ramosissimis laxe patentibus. Involucrum 

 campanulatum 5mm. longum basi bracteolis minutis 5 instructiim, bracteolis 

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

 acutis 1^ mm. latis glabris. Flores ignoti. Achasnium longe rostratum cum 

 rostris 4| mm. longum (rostris filiformibus 2 mm. longis) rostris exceptis fusi- 

 forme 2 mm. longum 10-costatum ad costas rugosum ; pappi setae albas 3 mm. 

 Iongo3 copiosaa scabrse. 



HAC. Taito : Pinan, leg. K. MIYAKE. Lactuca gracilis HAYATA (non DC.) 

 in Gen. Ind. p. 40. 



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

 yellow flowers. 



\j 



10. Lactuca lacerrima HAYATA sp. nov. (Fig. 31-1). Herba anuua 30 

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

 bitu spathulata 10-12 cm. longa 1^ cm. lata, laciniis patentissimis patento- 

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

 Capitula laxe cymoso-racemosa. Involucrum anguste campanulatum 5-6 mm. 

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

 volucri linearibus 6 mm. longis 1 mm. latis apice obtusis apice hirsutis. Flores 

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

 mm. longum longe fusifornie basi obtusum 10 costatum ad costas minute 

 hirsutum ; pappi seta3 albre 3i mm. longaa scabr;o. 



HAB. Inter Busegan et Seisui, leg. B. HAYATA, Mai. 1917. 



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



