PLUMBAGINACEAE 361 
1. AEGICERAS Gaertner 
Small, erect, glabrous trees. Leaves obovate, coriaceous, entire, the lat- 
eral nerves obscure. Inflorescence a simple or compound, sessile, axillary 
or terminal umbel. Flowers 5-merous, perfect, pedicelled. Calyx-lobes im- 
bricate. Corolla-tube short, the lobes 5. Stamens 5, inserted on the tube. 
Ovary oblong, narrowed into a slender style; ovules many. Fruit cylindric, 
curved, pointed, coriaceous, 1-seeded, at length dehiscing longitudinally, the 
seed similar in shape to the fruit, germinating within the pericarp. (Greek 
“goat” and “horn” from the shape of the fruit.) 
Species 2, tropical seashores, India to Polynesia, both in the Philippines. 
1. A. corniculatum (L.) Blanco (A. majus Gaertn.) Tunduc-tunducan, 
Pilapil (Tag.). 
An erect shrub 1.5 to 6 m high. Leaves obovate, rounded or retuse, 5 
to 10 em long. Flowers numerous, white, nearly 1 cm long, in simple 
terminal umbels, their pedicels 1 to 2 em long. Fruit eylindric, curved, 
sharply pointed, 3 to 5 cm long, about 5 m in diameter, surrounded at the 
base by the persistent calyx. (FI. Filip. pl. 38.) 
Along tidal streams, Pasay, fl. Oct.-Mar.; in similar habitats throughout 
the Philippines. India to China, southward to Australia. 
The one other species of the genus, A. floridum R. & S., is not found in 
our area and is less common in the Philippines than A. corniculatum; it 
differs chiefly in having its flowers in a compound umbel. 
109. PLUMBAGINACEAE (LEADWORT FAMILY) 
Branched herbs or undershrubs with alternate, entire leaves, the flowers 
in terminal, often elongated spikes, the bracts and bracteoles shorter than 
the calyx. Flowers regular, perfect. Calyx inferior, tubular, ribbed, 
covered with stalked glands, the limb 5-fid. Corolla white, blue, or red, 
salver-shaped, the tube long, slender, the lobes spreading. Stamens 5, op- 
posite the corolla-lobes, free. Ovary superior, 1-celled, the style slender, 
with 5 branches; ovule one. Fruit a membranaceous capsule, circumsciss 
near the base. 
Genera 10, species about 300, in all parts of the world, a single introduced 
genus in the Philippines. 
1. PLUMBAGO Linnaeus 
Characters of the Family as given above. (Latin “lead.”) 
Species 10, of wide distribution, 3 in the Philippines, all introduced. 
Flowers blue; corolla-tube 3 to 3.5 em long............................ 1. P. auriculata 
Flowers white or nearly so; corolla-tube 2 cm long............... 2. P. zeylanica 
Flowers red; corolla-tube about 2. 5 cm long.................222..2.22000-200+ 3. P. rosea 
{ 
*1. P. AURICULATA Lam. (P. capensis Thunb.). 
An erect, much branched, shrubby plant 1 m high or less. Leaves oblong- 
obovate, 1.5 to 5 cm long, 0.8 to 2 em wide, thin, obtuse, narrowed below. 
Spikes terminal, about 10 cm long. Calyx greenish, 1 to 1.3 cm long, viscid- 
glandular. Corolla pale-blue, the tube slender, 3 to 3.5 cm long, the limb 
spreading, 3 cm in diameter. (FI. Filip pl. 27.) 
