184 



EMILIA SONCHIFOLIA (L.); DC. in Wight, Oontrib. 24; Schum. & Laut. 

 602. 



Arfak Mts., Angi lakes, in open marsh and on edge of ? lake, 7000'. 

 Fl. 5915. 



Distrib. N.E. New Guinea and adjacent islands. Tropics of both 

 hemispheres. 



LACTUCA PROLIXA S. Moore, sp. nov. 



Caule simplici elato gracili striato, foliis radicalibus caulinis perpaucis 



anguste lineari-oblanceolatis acutis basi in petiolum longissimum extenuatis margine 

 distanter denticulatis membranaceis glabris, capitulis submediocribus in paniculam 

 brevem vel elongatam oligo- vel polycephalam satis laxam digestis pedunculis propriis 

 quam bractea subulata basali plane longioribus teneris, involucri oblongo-campanulati 

 glabri phyllis linearibus acutis ssepe anguste albo-inarginatis additis paucis exterioribus 

 abbreviatis ovato-lanceolatis acutis, fiosculis exsertis, achseniis anguste fusiformibus 

 pluricostatis glabris in rostrum quam se ipsa brevius desinentibus, pappi setis 

 levibus albis. 



Hal. ArFak Mts., Angi lakes, in bracken where burnt, 7000'. Fl. 

 Dec. 5921. 



At most more than a metre high. Single leaf seen 10 cm. long, above 

 the middle 5-6 mm. broud ; petiole almost as long as lamina, swollen at the 

 base. Inflorescence sometimes only 7 cm., at others more than 20 cm. 

 long, 5-15 cm. broad. Bracts few, + 2 mm. long. Capitula 1 cm. long. 

 Involucres 9 by 1-1'5 mm., their outer leaves 1-2 mm. long. Achenes 

 (with the beak 2 mm. long) 6 mm. long ; pappus 5 mm. long. 



A remarkable plant, differing from the widely diffused L. lamc/ata DO. 

 in the tall habit, the narrow leaf on its very long stalk, and the narrower and 

 longer flowering heads. 



