124 ENUMERATION OF PHILIPPINE PLANTS 1923 
over thickets in ravines, altitude 1,300 to 1,600 m. India to Japan south- 
ward to Malaya. 
Local name: Kangigit (Ig.). 
POLYGONUM PLEBEIUM R. Br. Prodr. (1810) 420; F.-Vill. Novis. App. 
(1880) 172; Vidal Phan. Cuming. Philip.’ (1885) 137, Rev. Pl. 
Vase. Filip. (1886) 217. 7 
Polygonum roxburghii Meisn. var. spathulatum Meisn. in DC. Prodr. 
14 (1857) 98. 
Luzon (Cagayan, Isabela, Benguet), Cuming 1289, B. S. 7811, 7866 
Ramos, Elmer 5968, Merrill Phil. Pl. 825. In open places along streams 
at low altitudes, ascending to 1,400 m in Benguet. Tropical and subtrop- 
ical Asia, Africa, and Australia. 
POLYGONUM POSUMBU Ham. in D. Don Prodr. Fl. Nepal. (1823) 71; 
Meisn. in DC. Prodr. 14 (1857) 105; Merr. & Rolfe in Philip. Journ. 
Sci. 3 (1908) Bot. 98; Merr. op. cit. 5 (1910) Bot. 346. 
Luzon (Benguet, Bontoc), Mindanao (Davao), Merrill 6575, 4805, Phil. 
Pl. 7681, Williams 1450, Elmer 5776. In open wet places, along trails, 
etc., altitude 1,400 to 1,800 m. India to Japan southward to Java. 
Local names: Karosros (Bag.); tugtugilang (Bon.). 
POLYGONUM PRAETERMISSUM Hook. f. Fl. Brit. Ind. 5 (1886) 47; 
Merr. & Rolfe in Philip. Journ. Sci. 3 (1908) Bot. 98. 
Luzon (Benguet), Merrill 4521, 7749, 7705, Phil. Pl. 1718. In open 
swamps, along small streams, etc., altitude 1,400 to 2,000 m. India to 
China; also in Tasmania. 
POLYGONUM PUNCTATUM Ham. in D. Don. Prodr. Fl. Nepal. (1825) 
72; Merr. in Philip. Journ. Sci. 5 (1910) Bot. 346. 
Polygonum punctatum Ham. var. alatum Ham. in D. Don Prodr. FI. 
Nepal. (1825) 72. 
Polygonum alatum Ham. ex Spreng Syst. Veg. Cur. Post. (1827) 154; 
Hook. f. Fl. Brit. Ind. 5 (1886) 39; Merr. & Rolfe in Philip. Journ. 
Sci. 3 (1908) Bot. 97. 
Polygonum nepalense Meisn. Monogr. (1826) 128; DC. Prodr. 14 
(1857) 128. 
Luzon (Bontoc, Benguet), Merrill 9681, Phil. Pl. 717, Williams 1147, 
Elmer 6603, Loher 5207. In open damp places, on hills, etc., altitude 1,300 
to 1,800 m. Southern Asia to Japan, southward to Java and New Guinea. 
POLYGONUM ROETTLERI Roth Nov. Pl. Sp. (1821) 205. 
Polygonum flaccidum Meisn. in DC. Prodr. 14* (1857) 107; Gage 
in Journ. As. Soc. Beng. 75+ (1912) 21; F.-Vill. Novis. App. 
(1880) 172. 
Luzon (Cagayan), F. B. 11609 Curran. In swampy places at low al- 
titudes. India to China, Formosa, and Malaya. 
POLYGONUM TOMENTOSUM Willd. Sp. Pl. 2 (1799) 447; Meisn, in DC. 
Prodr. 14 (1857) 124; F.-Vill. Novis. App. (1880) 172; Vidal Phan. 
Cuming. Philip. (1885) 137, Rev. Pl. Vasc. Filip. (1886) 218; 
Merr. Fl. Manila (1912) 187, Sp. Blancoanae (1918) 136. 
