78 COMPOSITE. 



having always yellow flowers. 



11. Lactuca flavissima HAY ATA sp. nov. (Fig. 31-3). Herba 20-50 

 cm. lata glabra. Folia raclicalia vel caulina lanceolata 12 cm. longa 1 cm. lata 

 apice acuminata basi attenuata tenuiter membranacea margine Integra vel re- 

 mote serrulata giaberrima subsessilia. Capitula laxe cymoso-paniculata. In- 

 volucrum anguste campanulatum 7-8 mm. longuni basi bracteolis ovatis 1 mm. 

 longis 5 instruction, bracteis involucri linearibus 7 mm. longis 2 mm. latis apice 

 obtusis glabris. Achsenium maturum longe rostratrum cum rostris 2 mm. longis 

 6 mm. longuni fusiforme basi obtusum 10-costatum ad costam plus minus 

 scabro-hirsutum ; pappi seta? alba? scabne 5-6 mm. longcB. 



HAB. Taihoku. 



L. versicolor HAYATA (non Scn.-Bip.) Gen Ind. p. 40. 



Near L. versicolor ; but differs from it in having always yellow-flowers. 



Crepis 



Key to species. 



1. Leaves lyrate or sinuate ............................................................ 2. 



Leaves entire or denticulate ......................... . ................................ 3. 



2. Leaves lyrate with adpressed short hairs, stem 8-10 cm. tall ............... 



..................................................................... 1 . C. formosana. 



Leaves serrulate or lyrate towards the base glabrous or nearly so, stem 

 20-50 cm. tall ................... > ................................... 2. C. japonica. 



3. Leaves entire, achenes perfectly smooth ...................... 3. C. koshunensis. 



Leaves obscurely denticulate or subentire, achenes minutely rnuricate ....... 



........................................................................... 4. C. integra. 



Lactuca longirostra HAYATA sp. nov. (Fig. 31-4). Herba basi lignosa 20-30 cm. longa 

 glabra. Folia radicalia lineari-spathulata 8 cm. longa 1 cm. lata apice obtusissima rotundata basi 

 longe attenuata membranacea margine integerrima; caulina basi sessilia subamplexicaulia minora. 

 Capitula pauce laxe cymosa. Involucrum anguste campanulatum 6-7 mm. longuni basi bracteolis 

 7-8 instructum, bracteolis ovatis acutis IJrnm. longis, bracteis involucri 74- mm, longis 2mm. latis 

 apice obtusissimis. Flores ignoti. Achsenium maturum fusiforme longe rostratum, (rostris 2mm. 

 longis), cum rostris 4mm. longum 10-costatum glabrum pappi set,T albse copiosae 3mm. longse 

 seabne. 



HAB. Bonin : Chichijima, Komagari, leg. H. IlATToiir. 



Xear Lactuca lanceolata (= Crepis inteyra) in the lanceolate leaves; but distinctly diflers from 

 it in the very long-beaked achenes. 



