LEGUMINOSAE 221 
acuminate, 8 to~15 em long, subcoriaceous. Panicles in the upper axils, 
rusty-pubescent, many-flowered, 10 to 20 cm long. Flowers yellowish- 
white, fragrant, about 7 mm long. Pods red, 2 to 3 cm long, obovoid, 
somewhat curved and compressed, short-stalked. 
In thickets, Masambong, fl. Feb.-March; widely distributed in the Phil- 
ippines. Endemic. 
65. LEGUMINOSAE ' (BEAN OR NARRA FAMILY) 
Annual or perennial herbs or vines, shrubs, or trees. Leaves usually 
alternate, stipulate, simple, digitate, or pinnate. Flowers in axillary or 
terminal racemes or panicles, sometimes solitary, bracts and bracteoles 
usually present. Flowers regular (Mimosoideae) or irregular, usually 
perfect. Calyx truncate or toothed, sometimes 2-lipped, the lobes some- 
times free or nearly so. Petals usually 5, sometimes reduced to 1 or 3, 
equal (Mimosoideae) or very unequal. Stamens normally 10, fewer in 
some genera, or indefinite in some Mimosoideae; filaments free or variously 
combined. Ovary free, superior, 1- to many-ovuled; style simple; stigma 
capitate, terminal or oblique. Fruit a usually dry or sometimes fleshy pod, 
splitting down one or both sutures or sometimes indehiscent, or separating 
into 1-seeded, indehiscent joints. Seeds usually exalbuminous. 
One of the largest families, consisting of about 500 genera, and 12,000 
species, in all parts of the world, 91 genera and about 290 species in 
the Philippines. 
This vast family is divided into three very natural subfamilies, treated 
by some authorities as distinct families. They are the Mimosoideae, with 
regular flowers, the petals valvate, free or united above the base, the 
stamens definite or indefinite; the Caesalpinioideae, with irregular flowers, 
the petals imbricate, the upper one innermost in bud, sometimes reduced 
to 1 or 3, the stamens definite; and the Papilionatae, with very irregular 
petals, the corolla papilionaceous, that is, butterfly-like, consisting of the 
upper outer petal, the standard, the four others in two opposite pairs 
called the keel and the wings, the stamens definite, their filaments variously 
united. All have in common the characteristic fruit known as a pod or 
legume, which may be dehiscent or indehiscent, dry or fleshy, and 1- to 
many-seeded. 
T Pews Varvaue. Mowers remimiar. f..<  eecra at ceeacse A. Mimosoideae 
1. Petals imbricate; flowers irregular. 
2. Flowers not papilionaceous, the upper petal interior. 
B. Caesalpinioideae 
2. Flowers papilionaceous, the upper petal (standard) exterior. 
C. Papilionatae 
A. MIMOSOIDEAE 
1. Calyx-lobes valvate. 
2. Stamens usually numerous, at least more than twice as many as 
the petals. 

‘For a consideration of the known Philippine species see Merrill, E. D., 
“An Enumeration of Philippine Leguminosae, with Keys to the Genera 
and Species.” Philip. Journ. Sci. 5 (1910) Bot. 1-136. 
