. The classification of flowering plants. Plants. imbricate scales (fig. 124). Mauritia is a large tro})ical South American Fan-palm, with a pillar-like stem and a thick leaf-crown with large axillary inflorescences. Raphia and a few allied genera are tropical African Feather-palms ; the West African Wine-palm {R. vinifera) being represented by several varieties in tropical America. The section Calameae is Indo-Malayan, and includes erect or bushy palms like Metroxylon {Sagus) (which is monocarpic), and the climbing Rattans with the thorny leaves often continued into flagella {Cala- Daemonorop
. The classification of flowering plants. Plants. imbricate scales (fig. 124). Mauritia is a large tro})ical South American Fan-palm, with a pillar-like stem and a thick leaf-crown with large axillary inflorescences. Raphia and a few allied genera are tropical African Feather-palms ; the West African Wine-palm {R. vinifera) being represented by several varieties in tropical America. The section Calameae is Indo-Malayan, and includes erect or bushy palms like Metroxylon {Sagus) (which is monocarpic), and the climbing Rattans with the thorny leaves often continued into flagella {Cala- Daemonorops (fig. 123), Korthalsia). Tribe 5. Areciiieae. The largest tribe. Feather- palms, generally paripinnate, with diclinous flowers. The ovary is trilocular with three ovules, or unilocular with one (fig. 125, B). The fruit is a juicy or fibrous-fleshy berry, generally one-seeded. Very widely distributed through the tropics. A great number are tropical Asiatic, extending through Australia to New Zealand. Other distinct groups of genera occm- in the warmer parts of America, a few only in Africa. Caryota is an important Asiatic genus, also Arenga, Areca (fig. 125) and its allies. Chamaedorea, Euterpe, Oreodoxa (Royal palm), Iriartea, and Ceroxylon, are characteristic Xew World genera. Tribe 6. Cocohieae. Tropical Ameri- can, extending to southern Mexico and the West Indies in the north, South Brazil and Chili in the south. The leaves are paripinnate (fig. 126), the flowers monoecious. The three united carj^els form generally a one-seeded drupe with three germ-pores, two of which are blind and represent the barren carpels. Fig. 124. Fruit of Metroxylon Bumphii, whole and in median section ; e, embryo ; ep, epicarp ; me, fibrous me- socarp ; s, seed. ^ nat. Fig. 125. Areca Catechu. A. Male flower, X 4. B. Longitudinal section through the unilocular ovary, with a single anatropous ovule, much en- larged. C. Fruit in longitudinal sec- tion ; e, embryo; p, pericarp ; s, seed, shew
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
