Materials for a Flora of the Malayan Peninsula. 



135 



or bisexual. Fruit covered with imbricating 



scales. 



Tufted palms not climbing. 



Flowers very small in dense spikes 

 Flowers large in a tall erect panicle 

 Climbing palms. Polycarpic with axillary 



inflorescence. 

 Spathes cymbiform at first enclosing the 



inflorescence then deciduous. 

 Spathes several 

 Spathe one 



Spathes tubular not covering the inflores- 

 cence persistent. 

 Inflorescence long unisexual. 



Scales of fruit large in spirals 

 Scales of fruit minute very numerous 

 Monocarpic palms. Inflorescence terminal 



stems dying after flowering. 

 Leaflets cuneate erose, spikes dense bracts 1 



flowered 

 Leaflets lanceolate acute. 



Spikes lax, bracts ovate imbricate many 

 flowered ... 



7. BORASSINEAE. Tall erect palms. 

 Leaves fanshaped, spadices interfoliar spathes 

 numerous sheathing. Flowers unisexual males 

 minute, sunk in cavities of the thick spadix, 

 branches females large sessile, surrounded by 

 large coriaceous round bracts. 



18. Zalacca. 



19. Eugeissona. 



20. Dacmonorops. 



21. Ceratolobus. 



22. Calamus. 



23. Plectocomiopsis. 



24. Korthalsia. 



25. Plcctocomia. 



26. Borassus. 



1. AllECEAE. 



1. ARECA, L. 



Large or small palms with solitary or several stems, erect ringed. 

 Leaves pinnate. Panicles infrafoliar branches numerous slender, termi- 

 nal portions male, with a few female flowers at the base of each branch. 

 Male flowers asymmetric very small. Sepals small ovate. Petals 

 lanceolate often oblique ribbed. Stamens 3 or 6. Anthers basifixed. 

 Female flowers much larger. Sepals orbicular ovate. Petals a little 

 longer. Stigmas 3 small. Ovule 1, basal erect. Fruit ovoid oblong 

 or fusiform. Stigmas terminal. Seed ovoid base truncate. Albumen 

 ruminate. 



Species 10, Indo-Malayan and Australian. 



