provided with a longitudinal short and minute prominence at the darkish 



dorsal part of the apex, becoming lanceolate and increasing in size after 

 flowering, measuring about 8 mm in length and radiately patent in 

 fructescence, but withered soon after and strongly deflexed to expose the 

 white bare receptacle on the flying away of the achenia. Florets 20-35 

 in each head, spreading in blossom. Corolla small, yellow but often tinged 

 with orange towards the tip externally ; ligule ligulate-oblong, thin, mem- 

 branaceous, 5 mm long, truncate and 5-dentate at the end; tubular part 

 slender, glabrous, 2} mm long. Anther darkish, manifestly obtuse-ovate 

 at the tip, narrowly and acutely sagittate at the base, nearly equal in 

 length to the filiform glabrous filament ; valves very thinly membranaceous. 

 Ovary minute, broadly oblong-obovate, constricted into a short neck below 

 the pappus, sub-lamellate-ribbed, glabrous, § mm long; style filiform, 

 slender, blackish, and scabrous above, arms slender, divergent, recurved out- 

 wards, blackish, scabrous on the dorsal surface and finely papillose on the 

 ventral surface. Pappus copious, longer than the tubular part of the 

 corolla and also than the body of the achenium, silky white, very delicate, 

 finely scabrous, about 4 mm long, nearly equal in length, simple, horizontally 

 patent in fruit and collectively forming a small transparent ball. Ache- 



nium cinnamon-coloured, fusiform, longitudinally 10-lamellate-ribbed, very 

 finely muricatc at the edges of the ribs, prolonged above into a setiform 

 beak slightly shorter than the body, 4-5 mm long including the beak. 

 Seed somewhat compressed, narrow. 



Lactuca sp. Matsumura Catal. Pi. Herb. Coll. Sc. Imp. Univ. Tokyo, 

 1886, p. 113. 



Nona. Jap. No-nigana (Z. Matsumura loc. cit.). " 



Bab. Prov. Mubashi : Toda-hara (Z. Matsumura ! May 3, 1880, herb. 

 Sc. Coll. Imp. Univ. Tokyo), Setagaya (T. Mahino ! May 6, 1894), Nobi- 

 fcbme (T. MaMnol May 13, 1894), Shimura (T. MaMnol May 22, 1898), 

 Koiwa-mura (T. MaMnol May 29, 1898); Prov. Shimosa: Mama (Herb.! 

 Be. Coll. Imp. Univ. Tokyo, May 9, 1880); Prov. Hartma : Near Maiko 

 (T. MaMnol May 1893) ; Prov. Tosa : Ochi-mura (T. Male ino ! May 1885), 

 Katadzirmura (T. MaMnol June 1892); Tadzikawa (T. MaMnol May 7, 

 L893), Ryoseki (T. MaMnol May 11, 1893); Prov. Sanuki: Western 

 part (T. MaMnol March 31, 1889); Prov. Iyo: Matsuyama (T. Nagasawal 

 April 13, 1890). 



Tliis species specifically distinct from L. versicolor Rchultz-Bip., princi- 

 pally in the form of the leaves, size of the flower, aspect of the 



