290 Mr. C. C. Babington on A. PoiTum and A. Ampeloprasum. 



stamen, and the anther-bearing point is only half the length 

 of either the common filament or of the barren points ; but 

 in the latter the segments of the perigone are longer than 

 the common filament, to which the anther-bearing point is 

 equal, but at the same time only one-third of the length of 

 the barren points. 



In Gaudin's Fl. Helv. v. ii. t. 11. the perigone of ^. Ampe- 

 loprasum is figured as longer than the stamens, and thus not 

 at all agreeing with our plant, which more resembles his figure 

 of A, rotundum, t. 10, in which he represents (and at p. 482 

 describes) the stamens as longer than the perigone, differing 

 in this from all other writers who have described A. rotun- 

 dum, quoting Clusius, Hist. v. i. p. 196. (for 190.) for A. to- 

 tundum instead o^ A, Ampeloprasum, to which it is usually, and, 

 as it appears to me, correctly referred, and omitting A, Ampe- 

 loprasum, Wald. and Kit. t. 82. which is generally considered 

 as a good figure of A, roiundum. He has not given a repre- 

 sentation of the root of ^. rotundum, but those of ^. Porrum 

 and Ampeloprasum are pretty characteristic. I am not satisfied 

 with his figures of the fruit. 



\. A. Porrum. 2. A, Ampeloprasum. 



It is remarkable that all the writers to whom I have referred 

 describe the heads of both these species as bearing cap- 

 sules and not bulbs ; for I find that some individuals of the 

 former produce bulbs on the head, amongst the flowers, in 

 cultivation, and that the same is the case with the latter in a 

 wild state in Guernsey. 



I propose the following specific characters for these plants, 

 both of which are distinguished from ^. rotundum by their 

 exserted stamens. 



1. A. Porrum (Linn.). Caule ad medium folioso, foliis planis. 



