T E 



Dijfepimentum prominent at the apex beyond t!ie 

 Valva., the prominent part having before ferved 

 ■AS ^Stylus. Semina, ronndlfh, nodding, al- 

 ternately and longitudinally funk in the Dif- 

 fepimeniiini ; Receptaculutn linear, furrounding 

 the Dl.JJep'imentum, and lodged in the futures of 

 the Perkarpiu?n. This is really a natural clafs, 

 and has been unlverfally confidered as fuch by 

 fyftematjc botanifts. It is the Cruet formes of 

 Tournefort, and the SU'uulof/e & Siliquofa of 

 Ray, The plants of this clafs are univerfally 

 efteemed antifcorbutic. The effential generi- 

 cal character] ftic is commonly to be found in 

 the fituation of tlte neftariferous gland. The 

 orders are two, viz. Siliculosb, contairalng; 

 thirteen ^r«^r^, viz. Myngrum, Vclla, Anajlaiica., 

 Subularia, Draba, Lepidlum, Thlafpi^ Cochlearia, 

 Iberis, Alyjjum, Clypeola, B'lfcutella) Lunaria ; Si- 

 Llc^uos^, containing it^ genera, viz. Dentaria^ 

 Gardamlne, Sifymbrlum, Eryjimum, Chelranthtfs^ 

 JHefperis, Jrabis, Turritis, BraJJica, SinapiSy KU' 

 phanus, BuniaSy Ifatis, Crarnbe, Ckome. 



TETRAG0NU5 CauUs -^ four- cornered* • 

 See Trigouus, 

 Tetragona Sillquay as in the Sinapis nl^ra. 



TETRAGYNIA [T«<r,r«^j, guatuor, & rv>.j, 

 ?mdier, a woman] one of the orders in the 4th, 



$th» 



