lxxii INTRODUCTION. 



XLIY. Pinguicula family. 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. 



XLV. Holly family. Trees or shrubs, flowers small. Ovary 4- or more 

 celled, with one ovule in each cell. 



XL VI. Jessamine family. Trees or shrubs. Stamens 2, alternating with 

 the 2 ovary-cells, and having no constant relation to the corolla-lobes. 



XL VII. Periwinkle family. Corolla contorted. Stamens isomerous. Ovary 

 of 2 carpels, usually distinct, whilst the styles are united at the top. 



XLVIII. Gentian family. Bitter plants. Corolla contorted. Stamens 

 isomerous. Placentas parietal, rarely meeting in the axis. 



XLIX. Polemonium family. Corolla contorted. Stamens isomerous. Ovary 

 3-celled, with several seeds. 



L. Convolvulus family. Corolla plaited. Stamens isomerous. Ovary 2- or 

 3-celled, with 2 (rarely 1) ovules in each, often separated by an additional false 

 partition. 



LI. Borage family. Stamens isomerous. Ovary 2- or 4-lobed, with one 

 ovule in each lobe. 



LII. Solanum family. Stamens isomerous. Corolla plaited or imbricate. 

 Ovary 2-celled, with several ovules in each cell. 



)8. Corolla irregular. Stamens one less or three less than the lobes. 



LIII. Broomrape family. Leafless parasites. Placentas parietal, or rarely 

 meeting in the axis. 



LIV. Scrophularia family. Ovary 2-celled, with several ovules in each 

 cell. 



LV. Labiate family. Ovary 4-lobed, with one ovule in each lobe. 



LVI. Vervein family. Ovary entire, 2- or 4-celled, with one ovule in 

 each cell. 



*## Anomalous families. 



LVII. Plumbago family. Ovary with one cell and ovule, but several styles. 

 LVIII. Plantain family. Corolla scarious. Stamens isomerous. 



Subclass 4. Monochlamyds. — Perianth really or apparently simple, or 

 none. 



LIX. Paronychia family. Perianth small, often scarious. Ovary with one 

 cell and ovule, but 2 or more styles or style-branches. Leaves usually opposite 

 with scarious stipules. 



LX. Groosefoot family. Perianth small ; stamens opposite to its lobes. 

 Ovary with one cell and ovule, but 2 or more styles, or stigmas. No stipules. 



LXI. Polygonum family. Perianth small. Ovary with one cell and ovule, 

 but 2 or more styles or. stigmas. Stipules sheathing. 



LXII. Daphne family. Stamens inserted in the tube of the perianth, and 

 usually double the number of its lobes. Ovary free, with one pendulous ovule. 

 One style. 



LXIII. Elaeagnus family. Shrubs or trees, with scurfy leaves. Flowers 

 mostly unisexual. Ovary free in the bottom of the perianth-tube, with one 

 erect ovule. 



LXIV. Sandalwood family. Perianth -lobes valvate. Ovary inferior, 1- 

 celled with 2 or 3 pendulous ovules. Styles simple. 



LXV. Aristolochia family. Perianth irregular, or 3-lobed. Stamens 6 or 

 12. Ovary inferior, 3- or 6-celled, with numerous ovules. 



