50 MERRILL. 



2S. MEZONEURUM Dosf. 



Calvx deeply cleft, with a wide sliort tuhe and a basal disk, the anterior lobe 

 deeply cucuUate (§ Eumezoneurum) . 

 Leaflets opposite, large, ovate, acute or acuminate, about 10 cm long. 



1. M. cucullaiuni 

 Leaflets alternate or subopposito. small, elliptic to elliptic-oblong, broad and 

 rounded at the apex, 1.5 to 3.5 cm long. 

 Leaflets beneath and calyx externally ratlier densely pnbesccTit. 



2. M. pubescens 

 Leaflets and calyx glabrous. 



Leaflets about 1.5 cm long; pods 1-seeded 3. 1/. mindorense 



Leaflets 2.5 to 3.5 cm long; pods 5- to 7-seeded 4» M. latisUiquum 



Calvx shallowly cleft, with a narrow, elongated tube, tlie disk extending above 

 the base, the anterior lobe shallowly hooded. (Leaflets alternate, obovate- 

 oblong, obtuse, 5 to 7 cm long) (§ Tubicalyx) 5. .1/. sumatranum 



1. Mezoneurum cucuiiatum (Roxb.) Wight & Arn. Prodr. (1834) 283; Baker 

 in Hook. f. Fl. Brit. Jnd. 2 (187S) 258; Prain ex King in Journ. As. Soc. Beng. 

 66- (1897) 232. 



Vaesalpinia cucuUaia Koxb. Hort. Beng. (1814) 32, Fl. Ind. 2 (1832) 358. 



Mezoneurum macrophyllum Bl. ex Miq. Fl. Ind. Bat. 1' (1855) 104. 



Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 022, February, 1907. 



India to Yunnan (Henry 12215), south to Cochin-China, the Andaman Islands 

 and Java; not previously reported from the Philippines. 



Mezoneurum macrophyllum Bl., was reduced to M. cuvuUatum W. & A. by 

 Baker, and the description of Bluine's species seems to apply rather closely to the 

 latter. 



2. Mezoneurum pubescens Dcsf. in Mem. Mus. Paris 4 (1818) 245, /. 11; 

 F.-Vill. Nov. App. (1880) 70; Yidal Rev. PI. Vase. Filip. (1886) 114. 



Cacsalpinia ignoia Blanco Fl. Filip. (1837) 330, ed. 2 (1845) 235, ed. 3, 2: 72. 



Mezoneurum hymenocarpum W. & A. Prodr. 1 (1834) 283; Prain in Journ. 

 As. Soc. Beng. 66= (1897) 233, 472 ? 



Luzon, Province of Rizal, For. Bur. IJfU, 3370 Ahern's collector, Dec. Philip. 

 Forest Fl. no. 206 Ahern's collector; near Manila, Marave 69, McGregor 79, Liana 

 229, Merrill. 



Native names: Camal-cahag, dauog (Rizal). 



Timor. 



There is sonic doubt as to the additional range of this species, as Baker records 

 it from Burma, but Prain states that the Burman, Ceylon, and Andaman Island 

 material is Mezoneurum hynienocarpum W. & A., Avhich species has alternate 

 leaflets, much fewer in number than those of M. pubescens Desf. Fragments of 

 three of the above numbers, representing flowers, immature and mature pods, 

 were sent to the Paris Museum for comparison with Desfontaines' type. Doctor 

 Lecomte, who kindly made the comparison, writes as follows: "II resulte de 

 cette 6tude que I'un des ("'chan til Ions envoyes correspond aussi bien que iwssible 

 n .1/. hymenocarpum W. ^•\ A., ct I'autre i\ M. pubescens Desf., type. I, .1/. hyme- 

 nocarpum W. & A., coll. Liana 229, 2, M. pubescens Desf., coll. Ramos Ufll, 

 Marave 69. De la premifere esp^ce nous possedons un (^chantillon envo3<5 par 

 King ab.solument semblable tl celui qui vous nous avez communique. De la 

 deuxi&me nous avons pu faire la comparaison avec le type." After a careful exam- 

 ination of a full series of specimens, however, I am convinced that but a single 

 species is rejiresented l)y ihe material cited above. The specimen collected by 

 Liana, exaniincii b\' Doctor Lcronitf. has \i^y\ tliiii, iitiinaluri' fruit, liut in all 



