254 THE FLORA. 
Orpen LXXXIX. LABIATA. Labiate Plants. 
Herbs with square stems, and opposite, aromatic leaves ; 
flowers axillary, in verticils, sometimes as if in spikes or heads; 
corolla labiate (rarely regular), the upper lip 2-cleft or entire, overlapping 
in the bud the lower 3-cleft lip; stamens 4, didynamous, or 2; 
ovary deeply 4-lobed, forming in fruit 4 hard nuts or achenia, 
Fig.580. Monarda didyma, 1. An anther enlarged. 2. Flower of Hemp Nettle (@aleop- 
sis). 3. One of its stamens much enlarged. 4. The calyx opened, showing the 4 achenia. 
5. Flower of Sage (Salvia). 6. Flower of Ocimum basilicum, 7. Flower of Nepeta Glechoma. 
8. A pair of the anthers forming a cross. 9. Flower of Physostegia Virginica seen from beneatn. 
Fig. 590. One of its stamens. 1. Its ovaries with the rudimentary filament. 2 Flower of Teu- 
orium Canadense. 8. Flower of Catnep (Nepeta Cataria). 4. One of its anthers. 5. Dittany 
(Gunila Mariana). 6, A calyx and style. 
