76 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, Taito, Shinkiku. 



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 BEXTH. et HOOK.; HAYATA 1. c. p. 40. 



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

 20 cm. longa ramosissima. Folia radicalia vel caulina liiiearia 5-6 cm. longa 

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

 Capitula laxissime cymosa, cymis ramosissimis laxe patentibus. Involucrurn 

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

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

 acutis l^rnm. latis, glabris. Flores ignoti. Achamium longe rostratum cum 

 rostris 4^ mm. longum (rostris iiliformibus 2 mm. longis) rostris exceptis fusi- 

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

 longre copiosge scabra?. 



HAB. 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. 



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

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

 bitu spathulata 10-12 cm. longa l^cm. lata, laciniis patentissirnis patento- 

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

 Capitula laxe cymoso-racemosa. Involucrurn 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. Achreiiium maturum longe rostratum cum rostris 1 mm. longis 4 

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

 hirsutum ; pappi se-tse alba3 3^ mm. longas scabras. 



HAB. Inter Busegari et Seism, leg. B. HAYATA, Mai. 1917. 



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



