99 
ENUMERATION OF PHILIPPINE LEGUMINOSAE, 
57. PTEROCARPUS Linn. 
Seed-bearing portion of the pod thickly beset with elongated slender spines. 
1. P. echinatus 
Pod without' spines, glabrous or pubescent. 
Pods usually less than 5 cm in diameter.... 2. P. indicus 
Pods 6 to 8 cm in diameter , 3. P. blancoi 
1. Pterocarpus echinatus Pers. Syn. 2 (1807) 277; Prain Stray Leaves 
from Indian Forests 10, with Ind. Forest. 26 (1900) ; Merr. in Govt. Lab. Publ. 
(Philip.) 17 (1904) 20. 
Echinodiscus echinatus Miq. FI. Ind. Bat. 1 1 (1855) 137. 
Pterocarpus erinaceus F.-Vill. Nov. App. (1880) 68; Yidal Sinopsis Atlas 
(1883) t. JfO, fig. B, non Poir. 
Pterocarpus vidalianus Rolfe in Journ. Linn. Soc. Bot. 21 (1884) 309; Vidal 
Eev. PI. Vase. Filip. (1886) 112; Perk. Frag. FI. Philip. (1904)' 20. 
Pterocarpus Iclemmei Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 198. 
Luzon, Province of Cagayan, For. Bur. 4275, 5249, 7 086 Klemme, For. Bur. 
17127 Curran: Province of Ilocos Norte, For. Bur. 13859 Merritt & Darling: 
Province of Ilocos Sur, For. Bur. 5662 Klemme: Province of Bulaean, For. Bur. 
7207 Curran: Province of Laguna, For. Bur. 8053 Curran & Merritt: Province 
of.Tayabas, Merrill 1016, 2597, 2050, For. Bur. 10747 Curran, Bagger s. n. : 
Province of Camarines, For. Bur. 14334 Aguilar, For. Bur. 10633, 10729 Curran. 
Mindoro, For. Bur. 9895 Merritt. 
Celebes, Selayer. 
In spite of the apparent difference between the fruits of this and the next 
species, the two are so closely allied that I have been unable to find any constant 
characters by which ■ sterile or flowering specimens can be distinguished, and 
accordingly a number of flowering specimens -which doubtless belong in part to 
the present species, are cited below, although probably they for the greater part 
belong to the next, ' which is the more common and widely distributed one in 
the Philippines. The specimens cited above are all with fruit. 
Two specimens in the herbarium of the Bureau of Science show some steps of 
intergradation between P. echinatus and P. i/ndicus; the first (For. Bur. 10425 
Curran, Camarines Province, Luzon), presents the pods with numerous, very 
short spines, less than 1 mm long, on most of the pods, but with other pods 
with no traces of these short spines; the second (For. Bur. 7060 Klemme, Cagayan 
Province, Luzon) presents pods for most part entirely smooth, but 3 or 4 of 
the 15 on the specimen have each from two to five spines in all respects similar 
to those of P. echinatus. 
Pterocarpus Iclemmei is here reduced to P. echinatus, as I am convinced that 
the type of the former is only a specimen of the latter species with very im- 
mature pods. 
Flowering specimens, in part doubtless referable to the above species, but 
probably for the greater part belonging to the following one : 
Luzon, Province of Cagayan, For. Bur. 16956, 17190 Curran, For. Bur. 11289 
Klemme, For. Bur. 18488, 18521, Alvarez: Province of Tayabas, For. Bur. 370 
Bath, Merrill 2592, 1984, 2044, For. Bur. 6067 Kobbe, For. Bur. 6629 Reyes, 
For. Bur. 10293 Curran . Mindoro, Merrill 2231, Whitford 1473, For. Bur. 
3675, 6729 Merritt. Palawan, For. Bur. 3840 Curran, For. Bur. 7 441 Manalo. 
Balabac, Bur. Sci. 391 Mangubat. Samar, For. Bur. 15063 Rosenbluth. Leyte, 
For. Bur. 12632 Rosenbluth. Mindanao, Province of Surigao; Bolster 234: 
Lake Lanao, Mrs. Clemens 288. 
