44 MEDICAL BOTANY. 
MONOCOTYLEDONEA VEL ENDOGENEA. 
Monocotyledonous or Endogenous plants are such as have but one cotyledon or lobe, attached to the embryo of the 
seed. ‘They grow by additions to the interior, or by interstitial deposit. In this division, the distinction into bark, wood 
and pith, is not found, but the basis of their structure is cellular tissue, in which the vessels are disseminated, or 
arranged in fasciculi. From their interior growth, in contradistinction to that which prevails in the previous division, 
they are termed endogenous. 'Their trunk is usually cylindrical. Leaves disposed to sheath at base, and adherent to 
the stem without articulation, mostly alternate, with parallel veins and transverse connections. Flowers in ternary 
divisions. Calyz and corolla frequently the same. Embryo enclosed in the cotyledon, and bursting through it. 
Not near so large a proportion of the plants appertaining to this division, as of the former, afford articles of the 
Materia Medica. If any characteristic prevails, it is that of succulency. Some nutritive substances, but few edible 
fruits, are afforded by it. ‘The products are diverse, as in the preceding division. 
PALMACEAR. 
LINDLEY. | 
THE PALE TRIBE, 
Patmz.—Jussieu. : 
EssentiaL Cuar.—Flowers hermaphrodite, or frequently polygamous. Perianth six parted, in two series, persist- 
ent, the three outer segments often smaller, the inner sometimes deeply connate. Stamens inserted into the base of 
the perianth, usually definite in number, opposite the segments of the perianth, to which they are equal in number, 
seldom three, sometimes in a few polygamous genera, indefinite in number. Ovary one, three-celled, or deeply three- 
lobed ; the lobes or cells one-seeded, with an erect ovule, rarely one-seeded. Fruit baccate or drupaceous, with fibrous 
flesh. Albumen cartilaginous, and either terminate or furnished with a central or ventral cavity. Embryo lodged in a 
particular cavity of the albumen, usually at a distance from the hylum, dorsal, and indicated by a little nipple, 
taper or pulley-shaped. Plumule included, scarcely visible ; the cotyledonous extremity becoming thickened In germl- 
nation, and either filling up a pre-existing cavity, or one formed by the liquefaction of the albumen in the centre. 
Trunk arborescent, simple, occasionally shrubby, and branched, rough, with the dilated half sheathing bases of the 
leaves, or their scars. Leaves clustered, terminal, very large, pinnate, or flabelliform, plaited in vernation. Spadix ter- 
minal, often branched, enclosed in a one or many-valved spath. Flowers small, with bractlets. rust occasionally 
very large. (R. Brown. Pereira.) ‘ 
SAGUS RUMPHII. 
WILDENOW. 
SAGO PALM. 
Sacus FaRinirera.— Gaertner. 
Sex. Syst.—Moncecia, Hexandria. aie 
_ Gey. Cuar.—Leaves pinnated. Flowers moncecious. Male. Calyx three-toothed. Petals three. Stamens 0-** 
é 
