32 GENERAL REMAllKS ON THE 



larity in the corolla, as sufficient distinguishing characters, 

 especially as these are accompanied by other differences 

 which appear to me important. In Goodenoviae I have not 

 included Lobelia, which, however, has also an irregular 

 coroha, and althongh it wants the peculiar indusium of the 

 stigma, has in its place a fasciculus or pencil of hair sur- 

 rounding that organ. This structure has been regarded by 

 Jussieu and Richard, in a very learned memoir, more re- 

 cently written on the subject,^ as analogous to the indusium 

 of Goodenoviae, to which they have therefore added Lobelia 

 and derived the name of the order from this, its most 

 extensive and best known genus. To the opinion of these 

 authors I hesitate to accede, chiefly for the following 

 reasons : 



1st. Li Goodenoviae the deeper fissure of the tube of the 

 corolla exists on its iuner or upper side, a circumstance 

 readily determined in those species having single spikes. 

 In Lobelia, on the other hand, the corresponding fissure is 

 on the outer or lower side, a fact, however, which can only 

 be ascertained before the opening of the corolla, the flowers 

 in the greater number of species becoming resupiuate in the 

 expanded state, a circumstance that does not appear to have 

 been before remarked. The relation therefore not only of 

 the corolla but of the calyx and stamina to the axis of 

 inflorescence, is different in these two tribes. 



560] 2ndly. In Goodenoviae the greater part of the tube of 

 the corolla is formed by the cohesion of five laciniae, the 

 distinct inflected margins of which are in most cases visible 

 nearly to its base ; these lacinise are in some cases uncon- 

 nected, as in Diaspasis, and more remarkably still in Cypliia, 

 which is actually pentapetalous. I have observed no such 

 structure in Lobelia. 



3rdly. At the period of bursting of the antherae the 

 stigma in Lobelia is almost completely evolved, and capable 

 of receiving impregnation from the pollen of the same 

 flower ; the function therefore of its surrounding pencil, is 

 similar to that of the hairs which are almost equally obvious 



' Annales du mus. IS,^. 1. 



