ENUMERATION OF PHILIPPINE LEGUMINOSAE. 
29 
Luzon, Province of Union, Elmer 5689. 
Acacia philippinarum Benth. was based on two specimens, one of which is 
referable to A. rugata {A. concinna) , to which Bentham himself reduced the 
species, and the other is Acacia caesia Willd. 
Apparently not common in the Philippines ; India to southern China and the 
Malay Archipelago. 
4. Acacia caesia (Linn.) Willd. Sp. PI. 4 (1805) 1090; Benth. in Trans. Linn. 
Soc. 30 (1875) 530; Perk. Frag. FI. Philip. (1904) 6; Trimen FI. Ceylon 2 
(1894) 127. 
Mimosa caesia Linn. Sp. PI. (1753) 522. 
Mimosa intsia Linn. 1. e. 
Acacia intsia Willd. 1. c. 1091; Baker in Hook. f. FI. Brit. Ind. 2 (1878) 297; 
F.-Vill. Nov. App. (1880) 74; Vid. Sinopsis Atlas (1883) t. 45, fig. D, Rev. PI. 
Vase. Filip. (1886) 120; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 62. 
Acacia concinna Naves in Blanco FI. Filip, ed. 3, pi. 374, non DC. 
Luzon, Province of Ilocos Sur, For. Bur. 5267 Klemme: Province of Bataan, 
Williams 478, Merrill 3796: Province of Rizal, Bur. Sci. 1431, 4378 Ramos, Merrill 
2812, For. Bur. 3255 Ahern’s collector. 
Native names: Salsalomague (Ilocos Sur); daug, camat-cabay (Bataan); 
daug-manoc, sibog-aso (Rizal). 
Widely distributed in India and Ceylon, extending to Java and Sumatra, but 
not reported from the Malay Peninsula or from southern China. The specific name 
caesia has only page priority over intsia and has been here adopted following 
Bentham and Trimen. Trimen, l. c., states that Acacia intsia can not be distin- 
guished from A. caesia, even as a variety. 
5. Acacia pennata (Linn.) Willd. Sp. PI. 4 (1805) 1090; Benth. in Trans. 
Linn. Soc. 30 (1875) 530; Baker in Hook. f. FI. Brit. Ind. 2 (1878) 297; Trimen 
FI. Ceylon 2 (1894) 127; F.-Vill. Nov. App. (1880) 75; Vidal Phan. Cuming. 
Philip. (1885) 111, Rev. PI. Vase. Filip. (1886) 120; Prain Journ. As. Soc. Beng. 
66 2 (1897) 250, 510. 
Mimosa pennata Linn. Sp. PI. (1753) 522. 
Mimosa tenuifolia Blanco FI. Filip. (1837) 739, ed. 2 (1845) 510, ed. 3, 3: 
141, non Linn. 
Babuyanes Islands, Camiguin, Bur. Sci. 4038 Fenix. Luzon, Province of 
Rizal, For. Bur. 2891 Ahern’s collector, Merrill 1660. 
Native name: Sibog (Rizal). 
Var. arrophula (Don) Baker in Hook. f. FI. Brit. Ind. 2 (1878) 298; Prain 1. c. 
Palawan, Bur. Sci. 897 Foxworthy. 
Var. pluricapitata (Steud.) Baker 1. c.; Prain 1. c. 
Luzon, Province of Tayabas, Elmer' 9340. 
Tropical Asia and Africa to southern China, the Malay Peninsula and 
Archipelago. 
Acacia pennata (L.) Willd, as interpreted by recent botanists, contains several 
rather distinct forms, three of which are found in the Philippines. I am not 
at all sure that the specimens above referred to the species represent the typical 
form. As here interpreted, it is characterized by its small and raised basal 
petiolar gland, with few small glands on the rachis, and its axillary, fascicled or 
solitary heads, which are sometimes arranged in short racemes. The var. 
arrophula is characterized by a large basal petiolar gland, with few small ones on 
the upper part of the rachis, while the var. pluricapitata is distinguished by its 
heads being arranged in ample terminal panicles, small, raised basal petiolar 
gland, and numerous small glands on the rachis, one between every pair of pinnae, 
