THE FLORA OF MOUNT PULOG. 
327 
2. D. sanguinalis (Linn.) Scop. FI- Carn. ed. 2, 1 (1772) 52. 
In the pine region, altitude about 1,500 m, G. M. Z. 16130. 
This is the typical (European) form of the species; exceedingly variable, 
and distributed throughout the .temperate and tropical regions of the world. 
ISACHNE R. Br. 
1. I. myosotis Nees in Hook. Kew Journ. 2 (1850) 98. 
In the upper pine region, Merrill 6538. 
Widely distributed in the Philippines at 1 medium altitudes; endemic. 
2. I. beneckei Hack, in Oesterr. Bot. Zeitschr. 51 (1901) 459. 
In the mossy forest, G. M. Z. 16181. 
Known in the Philippines only from high altitudes in the Benguet-Lepanto 
region; Borneo and Java. 
Forma depauperata Hack, ex Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 
350. 
In the upper pine region, Merrill 6501/. 
3. I. pangerangensis Z. & M., var. halconensis Hack, in Philip. Journ. Sci. 
3 (1908) Bot. 167. 
In open grass lands of the summit, G. M. Z. 16182. 
The variety from a similar habitat on Mount Halcon, Mindoro, the species in 
Java. 
4. I. pauciflora Hack, in Govt. Lab. Publ. (Philip.) 35 (1905) 80. 
In the mossy forest, G. M. Z. 16185. 
Known only from the Benguet-Lepanto region. 
5. I. magna (Merr.) Merrill comb. nov. 
Isachne beneckei Hack. var. magna Merr. in Philip. Journ. Sci. ' 1 (1906) 
Suppl. 350. 
In the mossy forest, Merrill 6569, McGregor 8810. 
This form I now consider to be of specific rank; it is represented also by the 
following specimens: District of Lepanto, Mount Data, Merrill 1/5 41: Province 
of Benguet, Pauai, Bur. Sci. 1/21/8, 1/1/83 Mearns; Baguio to Ambulclao, Merrill 
1/312. It is characterized by its large size, frequently exceeding 1 m in height, 
while its panicle is very diffuse, reaching a length of 30 cm, the lower branches 
frequently 20 cm long. Endemic. 
PAN I CUM Linn. 
1. P. crus-galli Linn. Sp. PI. (1753) 56. 
In stream depressions, pine region, C. M. Z. 16129. 
Throughout the Philippines; temperate and tropical regions of the world. 
2. P. palmaefolium Koen. in Naturforseh. 23 (1788) 208. 
In stream depressions, pine region C. M. Z. 16210. 
Throughout the Philippines at low and medium altitudes ; India to tropical 
Africa, China, Japan, and Malaya. 
3. P. villosum Lam. 111. 1 (1791) 173. 
In the pine region below an altitude of 1,500 m, G. M. Z. 16159. 
In the Philippines at medium and high altitudes in northern Luzon, and in 
Mindanao; India to southern China and Formosa. 
SETARIA Beauv. 
1. S. flava (Nees) Kunth Rev. Gram. 1 (1829) 46. 
In the pine region, Merrill 6520, G. M. Z. 16156. 
Widely distributed in the Philippines at low and medium altitudes, exceed- 
ingly variable; Tropics of both hemispheres. 
