551 



Order 44. Sepiaiuje. " All these are shrubby or ar- 

 borescent. Leaves opposite, with scarcely any evident 

 stipulas. Flowers disposed in a more or less dense pa- 

 nicle. Calyx four-cleft. Corolla four-cleft, regular. Sta- 

 mens two. Pistil one, with a cloven stigma. Fruit either 

 a drupa, with one, two, or many, seeds, or a capsule." 



No manuscript remark occurs here, nor is there any 

 observation worth copying in the lectures, except that 

 Oka is said by Linnaeus to be scarcely a distinct genus 

 from Phillyrea. 



Order 45. Umbellate. ''The name of this order is 

 derived from the form of its inflorescence, whose stalks 

 all spread from a centre, like the ribs of an umbrella." 



" These plants are either perfectly umbellate or not. 

 The former are required to have a compound umbel, each 

 stalk, or ray, of which ends in a receptacle, producing 

 other stalks bearing flowers, or florets ; the latter have a 

 simple umbel, whose stalks are not subdivided. The lat- 

 ter constitute a separate section in Tournefort's system. 

 They are comprehended by Linnaeus in one natural order 

 with the former." 



" An umbel is properly a receptacle of a compound 

 flower, elongated into stalks; which manifestly appears 

 in Eryngium, whose florets are united into a head, just 

 like the proper compound flowers, — see the 49th order ; 

 nor are they supported by elongated stalks. Hence an 

 umbel may accurately be considered as a compound 

 flower. Those who controvert the opinion of Linnaeus in 

 this point contend, that many umbellate plants, having 

 male and hermaphrodite flowers in the same species, 

 ought to be placed in his class Polygamia. But this is 

 a mistake ; for no other plants ought to find a place in 

 that class, than such as have distinct male, or female, as 

 well as hermaphrodite, flowers, in the same species. This 

 is not the case with the Umbellatce, in which all the flo 

 rets of one universal umbel, that is, the whole umbel it- 

 self, constitutes but one flower, and this flower is never 



