206 THE JOURNAL OF BOTANY 
Mr. T. G. Een. A new Gnaphaloid genus (Artemisiopsis) was cha- 
racterized, and, among others, species of Vernonia, Erlangea, Heli- 
chrysum, Coreopsis, and Senecio 
instances of halonial branches of Lepidophloios which possessed 
nly two rows of tubercles, instead of the more usual quincuncial 
arrangement of the tubere The specimen referred to, of whic 
a longitudinal section lent by Dr. Scott. The occurrence 
of a meristematic tissue apparently in the position of the pericycle 
was referred to, and compar i cambium of Jsoétes. 
hough the phloem elements of the main axis were not well 
preserved, Prof. Weiss stated that the better preserved tissues of 
this region in the lateral tubercles confirmed the view he had taken 
be proceeded with. ‘This will contain the Apocynacee, the Un 
elaboration of which has been delayed till the present in order to 
enumerate and describe as comprehensively as possible the important 
caoutchouc-containing and medicinal plants which the order includes 
in Tropical Africa.” The paper read by Sir W. Thiselton- (then 
Mr. W. T. T.) Dyer before the Linnean Society in 1882 upon these 
plants has not, yet, we believe, been published, although we under- 
stand plates for it were prepared; it will doubtless be incorporated 
length achieved. ef appendix contains the addition of 
the order Mayacea, one representative of —Mayaca Baum 
Giirke—has lately been found in Angola, some new species, 
