THE FLORA OF MOUNT HALCON. 
309 
PLUCHEA Cass. 
Pluchea scabrida DC. Prodr. 5 (1836) 453. 
In an old clearing at 300 m. alt. (No. 5565) . 
Luzon to Mindanao. Endemic in the Philippines. 
DICHROCEPHALA DC. 
Dichrocephala latifolia DC. Prodr. 5 (1836) 372. 
In an old clearing at 300 m. alt. (No. 5584). 
Previously known in the Philippines only from Luzon. 
Tropical Africa, to China and Japan. 
LAGENOPHORA Cass. 
Lagenophora billardieri Cass. Diet. Sc. Nat. 25 (1826) 111. 
In forests at 2,000 m. alt. (No. 4442 Merritt) June, 1906. 
Previously known in the Philippines only from the mountains of northern 
and central Luzon. 
British India to Japan, Malaya and northern Australia. 
SENECIO Linn. 
Senecio mindoroensis Elm. Leaflets Philip. Bot. 1 (1906) 155. 
In an old clearing at 300 m. alt. (No. 5570) ; also collected by Merritt (No. 
4402) in June, 1906, at 1,500 m. alt., the latter specimens not typical. 
Luzon to Mindanao. Endemic in the Philippines. 
BIDENS Linn. 
Bidens pilosa Linn. Sp. PI. ed. 2 (1763) 832. 
In an old clearing at 300 m. alt. (No. 5566). 
Widely distributed in the Philippines. 
Temperate and tropical regions of the World. 
A1NSLIAEA DC. 
Ainsliaea reflexa Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 242. 
In mossy ridge forests at 2,400 m. alt. (No. 5781). 
Previously known only from the mountains of Luzon. 
LACTUCA Linn. 
Lactuca thunbergiana (A. Gray) Maxim, in Bull. Acad. Petersb. 19 (1874) 
530. 
In crevices of bowlders and ledges along the Alag River 100 to 300 m. alt. (No. 
6143). 
From northern Luzon to southern Mindanao, but usually at much greater 
altitudes. 
Japan, southern China and Formosa. 
CREPIS Linn. 
Crepis japonica (DC.) Benth. FI. Hongk. (1861) 194. 
In an old clearing at 300 m. alt. (No. 5583). 
Japan, southern China and India through Malaya to northern Australia. 
Widely distributed in the Philippines. 
