476 ^he Philippine Journal of Science 



about 4 mm long, the tube 1 mm. Achenes 3 to 3.5 mm long, 

 somewhat compressed, glabrous, longitudinally about 9-ribbed, 

 slightly narrowed upward. Pappus nearly white, 2.5 mm long, 

 rather copious. Torus glabrous. 



Luzon, Tayabas Province, Dingalan, Bur. Sci. 26586 Ramos 

 & Edano, August 24, 1916, on rocks along the seashore. 



A characteristic species, among the Philippine forms most 

 closely allied to Lactuca dentata C. B. Rob., but entirely different 

 from that species. It is readily recognizable by its heteromor- 

 phous entire leaves. The specimens were originally identified 

 as Lactuca stolonifera (A. Gray) Maxim., but a comparison made 

 by Mr. S. F. Blake with Gray's type shows it to be very dif- 

 ferent from that species. 



