64 MERRILL. 



Luzon, Province of Xueva Vizcaya, Dupax. in agricultural lands near the 

 river, Bur. Svi. 82.'/.'/ Bayuos, May, 1909. 



A species well characterized by its small, trifoliolate leaves, absence of 

 stipules, its long-pedicelled Howers, each pedicel with a pair of elongated, very 

 narrow bracteoles below the middle, and more especiallj- by its narrowly 

 lanceolate, snbeqnal 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. PI. (1753) 710; Baker in Hook. f. 

 Fl. Brit. liid. 2 (1870) 84; Blanco Fl. Filip. (1837) 569, ed. 2 (1845) 397, cd. 

 3, 2: 365; Xaves 1. c. pi. 13V; F.-Vill. Nov. App. (1880) 58; Vog. Nov. Act. 

 Acad. Nat. Cur. 19 (1843) Suppl. 1: 9. 



Luzon, Province of Cagayan, B%n-. Sci. 78S8 Kamos: Province of Ilocos Norte, 

 Bur. Sci. 2315 Mearns: Province of Pampanga, Bolster 39: Province of Rizal, 

 Guerrero 26, For. Bur. 3207, 3277 Ahern's collector, Manotok 53: Province of 

 Tayabas, Gregory .',0, Whitford 7Jt3, For. Bur. 7470 Reyes. Polillo, Bur. Sci. 

 9237 Robinson. Cebu, Lyon s. n. Mindanao, Mearns s. n. 



Native names: Putucan (Tayabas) ; palpatoc (Union) ; patoc-patocan, bulailaua 

 (Rizal) : cafamht, 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. 



Crotalakia lablrnifolia 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 

 e.vtant Philippine material known to me. 



Cbotalabia sericea Retz. ; F.-Vill. 1. c. 57. Probably an erroneous identi- 

 fication for C. retusa Linn. C. sericea Retz. is not represented by any extant 

 Philippine material known to me. 



33. MEDICAGO Linn. 



1. Medicago denticulata Willd. Sp. PI. 3 (1803) 1414; Baker in Hook. f. 

 Fl. Brit. Ind. 2 (1876) 90; Britt. & Br. 111. Fl. Northern U. S. 2 (1897) 272. 

 fig. 206G. 



Luzon, Province of Benguet, Bur. Sci. 2722, 3^73 Mearns. 



A species undoubtedly of recent introduction which may or may not persist : 

 Europe and Asia to China and Japan; naturalized in North America. 



Medicago sativa Linn., alfalfa, has been introduced a number of times by the 

 Philippine Bureau of Agiiculture, and has been cultivated in numerous places from 

 .sea level to an altitude of 2.000 m (Pauai, Province of Beiigiiet. Luzon, Merrill 

 Jf798} . It does not appear to be ad.'ipted to condition-* in thr IMiiiippiiie-; and 

 rapidly dies out. 



Trifolium Linn. l<"our species of Trifoliinn have bi-eii fnutid in llie i'liili|i|)iiies, 

 all apparently of recent introduction, either purposely for cultivation as t'oragf 

 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. T. 

 hybridum Liiui., "Alsike clover" is represented i)y Bur. Sci. 'i3'i'i Mcarus, cultivated 

 at Pauai, Province of Benguet, J.,uzon. T. incdrnaluni Linn., "crimson cIovim." 

 bj' Bur. Svi. S399 McGregor, cultivated at the same place as the preceding. 7'. 



"" ITook. f. Fl. Brit. Ind. 2 (1876) 84. 



