122 A FLORA OP MANILA 



2. Stemless palms growing in brackish swamps, the fruits in very large, 



' peduncled, globose heads - 2. Nipa 



2. Slender "or stout, erect, unarmed palms. 

 3. Inflorescence borne in the leaf-axils. 



4. Fruit very large, 15 to 30 cm in diameter 6, Cocoa 



4. Fruit small, not exceeding 5 cm in diameter. 



5. Lower leaflets spinescent; flowers in very dense heads,.?. Elaeis 

 5. Leaves very long; flowers on very long pendulous branches of 



the inflorescence , 8. Arenga 



3. Inflorescence borne below the sheaths which are imbricate, cylindric, 

 and enclose the apical portion of the trunk. 

 4. Large stout palms with thick swollen trunks, the inflorescence 



pendulous; fruit less than 1.5 cm long 9. Oreodoxa 



4. Slender palms with cylindric trunks. 



5. Flowers in groups of threes, one female between two males, 



the latter the larger 10. Normanbya 



6. Female flowers at the base of the branches of the inflorescence, 



few, much larger than the males _ 11. Areca 



1. LIVISTONA R. Brown 



Tall palms' with annulate trunks, the leaves fan-like, orbicular, flabel- 

 lately plicate, split to the middle into slender, 2-fid lobes; petioles long, their 

 margins spinous. Inflorescence in the leaf-axils, long-peduncled, loosely 

 and narrowly panicled,. elongated, pendulous in fruit; spathes many, small, 

 tubular, sheathing. Flowers small, perfect. Sepals 3, imbricate. Corolla- 

 lobes 3, valvate. Stamens 6, their fils^ments united in a ring. Ovary 

 'Of 3 nearly free carpels. Fruit a small globose drupe. (In honor of P. 

 Murray, Baron of Livistone.) 



Species about 20, tropical Asia, through Malaya to Australia, 6 or 7 

 in the Philippines. 



1. L. rotundlfolla Mart. Anahao (Tag.). 



A tall palm reaching a height of 16 to 20 m, the trunk straight, smooth, 

 marked with close annular scars. Leaves crowded at the apex, their petioles 

 Jong and armed on the sides with sharp hard teeth. Leaf-blades orbicular, 

 plaited, base cordate, about 1 m in diameter, cleft into numerous 2.6 to 4 

 cm wide segments, those in the middle about 20 cm long, toward the sides 

 longer, all cleft at the apex into 2, lanceolate, acuminate, 3 to 6 cm long 

 lobes. Inflorescence axillary, pendulous, up to 1.6 m long, composed of 

 sheathing partial spathes and spreading branches. Flowers small, sessile, 

 numerous, about 2 mm long. Fruit globose, somewhat fleshy, yellowish, 

 about 1.5 cm in diameter. 



Occasionally cultivated for ornamental purposes; of local occurrence in 

 the Philippines. Celebes; cultivated in other tropical countries. 



Several other species of this genus are cultivated in Manila, but no 

 mature specimens of them have been observed. 



2. CORYPHA Linnaeus 



Tall, stout, unarmed palms, dying after once flowering and fruiting. 

 Leaves very large, fan-like, suborbicular, with many narrow lobes, the 

 petioles long, stout, spiny on the margins. Inflorescence very large, ter- 

 minal, erect, branched. Flowers small, perfect, spicately arranged on 

 .the ultimate branchlets in groups of threes. Calyx cupular, 3-fid. Petals 



