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64 MERRILL. 
Luzon, Province of Nueva Vizeaya, Dupax, in agricultural lands near the 
river, Bur. Sci. 8244 Ramos, May, 1909. 
A species well characterized by its small, trifoliolate leaves, absence of 
stipules, its long-pedicelled flowers, each pedicel with a pair of elongated, very 
narrow bracteoles below the middle, and more especially by its narrowly 
lanceolate, subequal calyx-lobes equal to the corolla in length, which are 
persistent, ultimately quite free, and radiately arranged at the base of the pod. 
15. Crotalaria quinquefolia Linn. Sp. Pl. (1753) 716; Baker in Hook. f. 
Fl. Brit. Ind. 2 (1876) 84; Blanco Fl. Filip. (1837) 569, ed. 2 (1845) 397, ed. 
3, 2: 365; Naves 1. c. pl. 159; F.-Vill. Nov. App. (1880) 58; Vog. Nov. Act. 
Acad. Nat. Cur. 19 (1843) Suppl. 1: 9. 
Luzon, Province of Cagayan, Bur. Sci. 7888 Ramos: Province of Ilocos Norte, 
Bur. Sci. 2315 Mearns: Province of Pampanga, Bolster 39: Province of Rizal, 
Guerrero 26, For. Bur. 3297, 3277 Ahern’s collector, Manotok 53: Province of 
Tayabas, Gregory 40, Whitford 743, For. Bur. 7470 Reyes. Poriri0, Bur. Sci. 
92387 Robinson. CrEBu, Lyon s. n. MINDANAO, Mearns s. n. 
Native names: Putucan (Tayabas) ; palpatoc (Union) ; patoc-patocan, bulailaua 
(Rizal): catanda, susoi, susosusoyan, balatong-aso, ex Blanco. 
Widely distributed in the Philippines at low altitudes, frequent as a rice- 
paddy weed; India to the Malay Peninsula and Archipelago, 
EXCLUDED SPECIES. 
CROTALARIA LABURNIFOLIA Linn.; F.-Vill. Nov. App. (1880) 58. 
This species was first credited to the Philippines by Baker,” possibly on an 
erroneously localized plant of Cuming’s collection. F.-Villar states that he saw 
living specimens in Luzon and Panay. The species is not represented by any 
extant Philippine material known to me. 
CROTALARIA SERICEA Retz.; F.-Vill. 1. ¢. 57. Probably an erroneous identi- 
fication for C. retusa Linn. CO. sericea Retz. is not represented by any extant 
Philippine material known to me. 
33. MEDICAGO Linn. 
1. Medicago denticulata Willd. Sp. Pl. 3 (1803) 1414; Baker in Hook. f. 
Fl. Brit. Ind. 2 (1876) 90; Britt. & Br. Ill. Fl. Northern U. 8. 2 (1897) 272, 
fig. 2066. 
Luzon, Province of Benguet, Bur. Sci. 2722, 3473 Mearns. 
A species undoubtedly of recent introduction which may or may not persist; 
Europe and Asia to China and Japan; naturalized in North America. 
MepIcacGo sativa Linn., alfalfa, has been introduced a number of times by the 
Philippine Bureau of Agriculture, and has been cultivated in numerous places from 
sea level to an altitude of 2,000 m (Pauai, Province of Benguet, Luzon, Merrill 
4798). It does not appear to be adapted to conditions in the Philippines and 
rapidly dies out. 
TRIFOLIUM Linn. Four species of 7'rifolium have been found in the Philippines, 
all apparently of recent introduction, either purposely for cultivation as forage 
plants, or accidentally in hay. All of them have produced flowers at altitudes 
of from 800 to 2,000 m, but it is very doubtful if any of them will persist. 7. 
hybridum Linn., “Alsike clover” is represented by Bur. Sci. 4344 Mearns, eultivated 
at Pauai, Province of Benguet, Luzon. 7. incarnatum Linn., “crimson clover,” 
by Bur. Sci. 8399 McGregor, cultivated at the same place as the preceding. 7. 
% Hook. f. Fl. Brit. Ind. 2 (1876) 84. 
