TO BOTANY. 79 



calyx of these flowers is a nectarium : which is the 

 reason of the base being gibbous. 



COROLLA Called cruciform. Four equal petals. 

 The claws piano-subulate, erect, somewhat longer 

 than the calyx. The limb plane. The laminae wi- 

 dening outwards, obtuse, the sides hardly touching 

 one another. The insertion of the petals is in the 

 same circle with the stamina. 



STAMINA The filaments six and subulate ; of 

 which two that are opposite are of the length of the 

 calyx ; the other four somewhat longer, but not so 

 long as the corolla, the antherae oblong, acuminate, 

 thicker at the base, erect, and with their tops lean- 

 ing outwards. There is a nectariferous glandule, 

 which in the different genera has various appear- 

 ances; it is seated close to the stamina, and par- 

 ticularly to the two shorter ones, to whose base it 

 is fastened ; and these have a light curvature to pre- 

 vent their pressing, upon it, whereby those filaments 

 become shorter than the rest. 



PISTILLUM The germen above the receptacle 

 increasing daily in height. The style either of 

 the length of the longer stamina, or wanting. The 

 stigma obtuse. 



PEBICARPIUM A Siliqua of two valves, often 

 bilocular, opening from the base to the top : the dis- 

 sepiment projecting at the top beyond the valves, 

 the prominent part thereof having before served as 

 a style. 



SEEDS Roundish, inclining downwards, alter- 

 nately plunged lengthways into the dissepiment. 

 The receptacle linear, surrounding the dissepiment, 

 and immersed in the sutures of the pericarpiuin. 

 The orders are two, viz. 



OUDER!. SiLicuLOSAE,comprehendingsuch plants 

 whose pericarpiuin is a silicula. This order contains 

 fourteen genera, distinguished into 1. Those plants 

 in which the Silicula is entire, not notched at the 

 apex, of which there are five, viz. Draba, Lunaria, 



