476 The 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. 
