4 HISTORY OF THE SCORPIOID CYME. 
dans raga — oases a lieu, sont, en général, avant we 
développeme oulées e du cdté extérieur ; c'est ce qu 
observ ie rosera, Naont ‘a cimes ont les flours upilatraes, 
dans ied Silenés dits en épi, dans les branches des cimes des 
d celles des Kchium, et autres Borraginées. Je a 
his views on this subject, is contained in the ‘Flora’ for 1885: 
from page 189 I literally translate the following passage :—* If 
only one of the two branches (of a dichasium) be developed, two 
in 
erent s of unilateral branching arise, accordingly as the 
developed branch is the homodromous o antidromous 0 
When t omodromous branch is developed, the ot is 
always continued towards the same side, it. assumes a screw- 
like form, and has therefore been termed a Schraubel (Bostryx) : 
when the antidromous branch is developed, a system of alternating 
branches is produced, a Wickel Citi to which the inflorescence 
belongs, which is known as the cyma scorpioides.” The lecture was 
illustrated by a sheet of diagrams of the different forms of branching, 
which was distributed to the audience. Unfortunately I have not 
e gives are the following: of the Ciena, Alsine media, 
a Setidus, Tribulus, Siok of the Bostryx, Nerium, 
Hyperi 
In “188 87 the brothers Bravais published i in — ‘Annales des 
Sciences Naturelles’ an essay on the symmetr f inflorescences, 
ich 
distinction of two kinds of unilateral cymes just as Schimper had, 
but their terminology is different. Their definitions are as 
follows :— 
‘“* Cime hélicoide: er ov les fleurs successives sont rangées en spirale autour 
* Cime ye en cime ou les fleurs sont r 
e du pseudothalle.” 
And dee further distinguish the helicoi 
aps ledons from those of Monocotyledons. It is not easy to identify 
angées suivant deux séries paralléles 
ravais, inas s they appear to have studied different plants 
We shall see, however, that such an identification has been made. 
Payer follows Bravais in his distinction of two forms of uni- 
lateral cymes : thus, on page ee of his ‘ Elément nts de _Botanique ’ 
cyme 
une inflorescence composée ous série aa 
au bout des autres.” On page 99 he i ot ee La cyme unipare 
—— peut jon étre définie; une inflor 
’ 
c 
s les fleurs sont de génération différente, oppositifoliées, et 
