964 
! 
ISOTOMA axillaris. 
Axilflowering Isotoma. 
SYNGENESIA MONOGAMIA. 
Nat. ord. LopertacEx. ‘ 
_ ISOTOMA R. Br.— Corolla hypocrateriformis : tubo sub-integro ; 
limbo 5-partito subregulari. Anther@ connate imberbes; duabus inferioribus 
aristatis. Stigma capitatum. Ovarium biloculare, polyspermum. 
I. awillaris; ‘foliis sessilibus pinnatifidis dentatis, pedunculis axillaribus 
foliis multd longioribus. 
Lobelia senecioides, Hort. ; 
Annua.—Caulis teres, subpubescens. Folia alterna, sessilia, pinnatifida, 
glabriuscula; lobis linearibus subfalcatis acutiusculis, sinubus sepiis 1-den- 
tatis. Flores axillares, solitarii, longé pedunculati. Pedunculi jiliformes, 
glabri, foliis tripld longiores. Calyx glaber: dentibus é latd bast subulatis. 
Corolla hypocrateriformis ; tubo terete, viridescente, expallente, apice tantum 
paululum diviso; limbo 5-partito, subregulari: lactntis amené ceruleis, 
lineari-lanceolatis, patentibus. Filamenta monadelpha. Anthere connate, 
ferée imberbes, inequales: duabus inferioribus minoribus, apice hine processu 
setaceo aristatis. Ovarium glabrum biloculare, placentis centralibus carnosis 
polyspermis. Stigma antheris pauld evectius, capitatum, obscure bilobum. 
A beautiful annual, for which we are obliged to Mr. 
Mackay, of the Belgrave Nursery, Pimlico, by whom it 
was raised from seed received from New Holland, and be- 
lieved to have been collected in the neighbourhood of the 
cow-pastures near Sydney. 
This plant agrees so well with the characters assigned 
by Mr. Brown to his last section of Lobelia, which he calls 
Isotoma, that we do not scruple to refer it thither, not- 
withstanding our unacquaintance with the original species. 
It also appears to us to be one of those deviations from Lo- 
belia which possess character of sufficient importance to 
constitute a division of a higher class than a section. We 
hope to be able shortly to offer some remarks upon the re- 
lative value of the variations which exist in the genus Lo- 
belia, with a view to effect some further generic separations. 
