NOTES ON PHILIPPINE BOTANY. 
97 
cm long, most of them, however, varying from 1 to 2.5 cm in length, 
the axillary spines nearly straight, 5 to 7 mm long. 
Luzon, Province of Benguet, Tilad, Loher 1928, distributed as A. racemosus. 
The genus is new to the Philippines, the species extending from Japan and 
Korea to Formosa and southern China. 
CARY OPHYLLACE2E. 
ARENARI A Linn. 
Arenaria serpyllifolia Linn. Sp. PI. (1753) 423; DC. Prodr. 1 (1824) 411; 
Edgw. in Hook. f. FI. Brit. Ind. 1 (1874) 239; Forbes & Hemsl. in Journ. Linn. 
Soc. Bot. 23 (1886) 70. 
Luzon, Province of Benguet, Loo, Loher 1621. 
A widely distributed species in temperate and subtemperate regions, the first 
representative of the genus to be found in the Philippines, apparently indigenous. 
S AGIN A Linn. 
Sagina procumbens Linn. Sp. PL (1753) 128; Edgw. in Plook. f. FI. Brit. 
Ind. 1 (1874) 242. 
Luzon, Province of Benguet, Loher 1622. 
Widely distributed in the north and south temperate zones, in Asia southward 
to western Tibet and Sikkim; the first representative of the genus to be found 
in the Philippines. 
P OL YG O N A CE M . 
POLYGONUM Linn. 
Polygonum alatum Hamilt. in D. Don Prodr. FI. Nepal. (1823) 72; Hook, 
f. FI. Brit. Ind. 5 (1886) 39; Forbes & Hemsl. in Journ. Linn. Soc. Bot. 26 
(1891) 340. 
Polygonum nepalense Meisn. in DC. Prodr. 14 (1856) 128. 
Luzon, Province of Benguet, Loher 5201 . 
Afghanistan to Ceylon, China, Japan and the Malay Archipelago; new to the 
Philippines. 
Polygonum glabrum Willd. Sp. PI. 2 (1799) 447; Meisn. in DC. Prodr. 14 
(1856) 114; Hook. f. FI. Brit. Ind. 5 (1886) 34; Forbes & Hemsl. in Journ. 
Linn. Soc. Bot. 26 (1891) 340. 
Luzon, Province of Benguet, Elmer 5910 ; Loher 1/591/. 
Tropical and subtropical regions of Asia, Africa and America; new to the 
Philippines. 
Polygonum Hydropiper Linn. Sp. PI. (1753) 361; Meisn. in DC. Prodr. 14 
(1856) 109; Hook. f. FI. Brit. Ind. 5 (1886) 39; Forbes & Hemsl. in Journ. 
Linn. Soc. Bot. 26 (1891) 340; Walp. in Nov. Act. Nat. Cur. 19 (1843) Suppl. 
1: 407. 
Luzon, Meyen in Herb. Berol.; Province of Benguet, Kabayan, Merrill 1/1(28, 
October, 1905. 
Western Europe and northern Africa to China, Japan, and Java, also in North 
America. 
Walpers’ identification of Meyen’s specimen appears to be correct, it having 
been examined in the Berlin Herbarium in January, 1908, but the specimen 
collected by Meyen in Luzon, and reported by Walpers 1. c. as Polygonum 
Persicaria Linn., is not that species, but P. barbatum Linn. 
