Ixxvill INTRODUCTION. 
XLVII. Lentibulaces, Corolla very irregular, Stamens fewer than 
the lobes and alternate with them, | | 
** Placentas parietal, or in the axial angle of the cells. 
a. Corolla regular, or nearly so, | { 
XLVIII. Oleacez. Trees or shrubs. Stamens 2, alternating with the 
2 ovary-cells, and having no constant relation to the corolla-lobés, 
XLIX.: Apocynacee. Corolla contorted. ‘Stamens isomerous. Ovary 
of two carpels, usually distinct, whilst the styles are united at the top. 
L. Gentianacee. Bitter plants. Corolla contorted. Stamens isome- 
rous. Placentas parietal, rarely meeting in the axis, : 
LI. Polemoniaceze. Corolla contorted. Stamens isomerous, Ovary 
3-celled, with several seeds. | | 
LIT. Convolvulacez. Corolla plaited. Stamens isomerous, Ovary 2- 
or 3-celled, with 2 (rarely 1) ovule in each, often separated by an additional 
false partition. 
LIII. Boraginee. Stamens isomerous, Ovary 2- or 4-lobed, with one 
ovule in each lobe. 
LIV. Solanacez. Stamens isomerous. Corolla plaited or imbricate. 
Ovary two-celled, with several ovules in each cell. 
B. Corolla irregular. Stamens 1 less or 3 less than the. lobes. 
LV. Orobanchacew. . Leafless parasites. Placentas parietal, or rarely 
meeting in the axis. 
LVI. Scrophularines. Ovary 2-celled, with several ovules in each cell. 
LVII. Labiate. Ovary 4 lobed, with one ovule in each lobe, 
LVIII. Verbenacéze.. Ovary entire, 2- or 4-celled, with:one ovule in 
each cell, ! 
4s Anomalous families. 
LIX. Plumbaginez. Ovary with one cell and ovule, but several styles. 
LX. Plantaginee. Corolla scarious, Stamens isomerous, 
Subclass 4. MonocHLAMyD#.—Perianth really or apparently. simple, 
or none. 
LXI, Illecebracese. Perianth small, rarely double. Ovary with one 
cell and ovule, but 2 or 3 styles or stigmas. Leaves usually opposite, with 
scarious stipules. ; 
LXII. Chenopodiacese. _Perianth small ; stamens opposite to its lobes. 
Ovary with one cell and ovule, but 2 or more styles, or stigmas. No 
stipules. | 
LXIII. Polygonaceee. Perianth small. Ovary with one cell and ovule, 
but 2 or more styles or stigmas. Stipules sheathing. 
LXIV. Thymeleacez. Stamens inserted in the tube of the perianth, and 
usually double the number of its lobes. Ovary free, with one pendulous 
ovule. One style. 
LXV. Eleagnacese. Shrubs or trees, with scurfy leaves. Flowers 
mostly unisexual. Ovary free in the bottom of the perianth-tube, with one 
erect ovule. 
a 
