132 KEY TO PLANTS. 
descending. Radicle of the embryo in- 
ferior. Leaves opposite or verticillate, 
rarely alternate; in the latter case ovules 
ascending. 78. 
77 (a) Flowers in terminal spikes or heads. 
Anthers 1-celled. Ovary 1-2-celled. 
Europe and extratropical Asia and 
Africa. Selagineae. 
(0) Flowers axillary, solitary or fascicled. 
Anthers usually 2-celled. Ovary 2-10- 
celled. Stamens 4. Australasia, South- 
east Asia, South Africa. Myoporineae. 
78 (a) Ovary entire, very rarely slightly 4-lobed; 
in the latter case ovary incompletely 
septate at first, ovules attached more or 
less laterally, and fruit usually drupace- 
ous. Ovary completely or incompletely 
2- or 4- (very rarely 8- or 1-) celled. 
Verbenaceae. 
(4) Ovary 4-partite, more rarely 4-lobed (in 
the latter case fruit dry), completely 4- 
celled. Ovules erect. Leaves all opposite 
or verticillate. Flowers usually in false 
whorls. Labiatae. 
79 (a) Ovary 4-5-celled, deeply lobed. Ovules 
im each cell 2, superposed. Tropical 
America. Rutaceae. 
