COMPOSITE. 61 



Achrenium longe cuneiforme 7 mm. longum 1 mm. latuin valdc complanatum 

 dorso mcdio 1 -carinatum ad margines et carinas retrorse setulosum ; pappi setse 

 2 validissimse 4J mm. longse acut?e trigonse ad angulos retrorse setulosa?. 



HAB. Slrichisei/an, leg. Y. SHIMADA, Sept. 1916. 



Near B. tr! partita, but differs from it in the simple, not lobed, leaves. 



2. Bidens tripartita LINN.; HEMSL. Ind. Fl. Sin. I. p. 436. 

 HAB.. Shichiseizan, leg. T. SOMA, Mart. 1916. 



New to the flora of Formosa. 



3. Bidens bipinnata LINN.; HAYATA I.e. p. 37. 



4. Bidens pilosa LINN.; HAYATA I.e. p. 37. 



Syncdrella G^ERTN. 



Synedrella nodiflora G-EUTN.; HOFFMANN, in Nat. Pfl-fam. IV. 5, p. 212. 

 HAB. Ako ; Nanki, leg. T. SOMA, Aug. 1915. 

 New to the flora of Formosa ; perhaps introduced. 



Tayetes LINN. 

 Tagetes patiila LINN.; HAYATA I.e. p. 41. 



ChrysantJiemwHi LINN. 



Key to species. 



1. Leaves silky white or brown beneath 1. C. Morii. 



Leaves not silky beneath 2. 



2. Leaves with petioles 7 cm. long 2. C. arisanensis. 



Leaves with petioles 1-2 cm. long 3. C. indicum. 



1. Chrysanthemum Morii HAYATA sp. nov. Perennis 40-50 cm. longa. 



Caulis gracilis sericeo-hirsutus. Folia ad apicem caulis approximating, vel remote 

 disposita in ambitu obovata piimatifida vel lacerata vel pinnatiloba, lobis 

 linearibus vel triangularibus acutis, supra subglabra subtus adj>resse-sericeo- 

 argenteo-tomentosa basi cuneata, petiolis 5 mm. longis vel nullis. Capitula 

 solitaria terminalia semigloboso-campanulata cum floribus marginalibus 3 cm. 

 in diametro, bracteis involucri 3-4 seriatim dispositis, exterioribus linearibus 

 6 mm. longis obtusis extus dense sericeo-tomentosis intus glabris, interioribus 

 scariosis tenuibus linearibus hyalinis 1 cm. longis 2 nun. latis apice obtusis 



