DYDINAMIA. 335 



seed. — Corolla monopetalous and irregular, a little 

 inflated at the base, and holding honey, without any 

 particular nectary. Stamens in 2 pairs, incurved, 

 with the style between them, so that the impregnation 

 rarely fails.(137) The plants of this order are mostly 

 aromatic, and none, I believe, poisonous. The calyx 

 is either in 5 nearly equal segments, or 2 lipped. 

 Most of the genera afford excellent essential charac- 

 ters, taken frequently from the corolla, or from some 

 other part. Thus, Perilla has 2 styles, of which it 

 is an unique example in this class. 



Mentha a corolla whose segments are nearly equal, 

 and spreading stamens. Engl. Bot. t. 446 — 8. 



Lavandula the Lavender and TVestringia, Tracts on 

 Natural History, 277, t. 3, have a corolla resupinata^ 

 reversed or laid on its back. 



Teucrium a deeply divided upper lip, allowing the 

 stamens and style to project between its lobes. EngL 

 Bot. t. 680. 



^juga scarcely any upper lip at all, t. 77 and 489. 



Lamium has the mouth toothed on each side, t. 

 768. 



Prunella^ t. 961, has forked filaments ; Cleonia 4 

 stigmas ; Prasium a pulpy coat to its seeds. These 



(137) [Plants of this order, besides their 4 unequal stamens, rin- 

 gcnt corolla and naked seeds ; have their flowers commonly 

 avranged in whorls, their stems square and their leaves opposite. 

 Examples are common, as, the Mints, Germander, B;lm, Catmint, 

 Ground Ivy, &c. They form the natural order Vcrlicillata of 

 Linnaeus, and Labiatx of Jussieu. Some of the genera however 

 depart from the usual mode of inflorescence, as I'richostema and 

 others.] 



