BY E. HAVILAND. 183 



anthers crested by a tuft of stiff short hairs. The second of eight 

 species, having only the two lower anthers so crested. This second 

 section he again divides into two. The first sub-division, con- 

 taining five hermaphrodite species; the second, three species, 

 which are more or less unisexual ; although, in reality, they have 

 both stamens and pistils ; one or the other, however, being 

 abortive. As an instance, he specially refers to L. dioica (a 

 Northern Queensland species), the male flowers of which have the 

 female organs perfect, so far only, as the stigma is concerned, but 

 the ovary is short, and the ovules are abortive ; the stamens and 

 anthers, or male organs, are, however, perfect in every respect ; 

 producing perfect, fertile pollen, while the female flowers of the 

 same species, have the female organs, ovary, style and stigma 

 perfect ; but the stamens, or male organs, although present, are 

 rudimentary only, producing no pollen. This species, therefore, 

 as well as the two others in this sub division. L. purpurascens and 

 L pratioides, are, although possessing in each flower, to a certain 

 degree, both male and female organs, virtually unisexual. 



The genus is placed by Bentham in the order Campanulaceae, 

 but by most other botanists in a separate order, Lobeliacese ; 

 leaving Canipanulacese for those plants having regularly-shaped 

 corollas. 



As my notes from which I write this paper, have been made 

 from the examination of several species, excepting, however, for the 

 present, those that are unisexual, I give the generic description 

 only : not the specific characters of any individual member of the 

 genus 



Lobelia. 



" Calyx tube hemispherical, turbinate, ovoid or rarely linear ; 

 limb of five lobes, open or reduplicate, valvate in the bud. Corolla 

 slit open on the upper side to the base ; five lobed, the two upper 

 lobes usually shorter, more deeply separated and erect or curved 

 upwards, forming a more or less distinct upper lip. Stamens 

 inserted at the base of the corolla, sometimes very shortly adnate 

 to it ; the filaments often united above the middle ; the anthers 



