6 HISTQRY OF THE SCORPIOID CYME. 
one side, pa ri right or the left, of the median aise of the branch 
of a low which bears it. In this case the successive 
Eacihae: geome that they are directed asanaes upwards, 
describe a screw-line ; when placed in : horizontal position, or if 
projected upon a plane Pious iat to the long axis of the branch 
of the first order in the system, this lined is a spiral. Such a br bat 
m is a Schraubel or Bostryz Schimper), a cyme unipare helicoide 
(Bravais), (fig. 1). This case occurs “a frequently than the one 
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Fig. 1. Fig. 2. 
in which the position of the lateral branch to the branch which 
bears it varies at each bra anching ; it does so in such a wa that, 
and then the branch of the fourth order is again to the right of the 
median plane of the branch of the third order, and so on. Such a 
branch system, if projected upon a plane which passes transversely 
through the branch of the first order, forms a zigzag line (fig. 2). 
ence ich i 
callis iad flava, and the individual inflorescences of Hypericum 
peforatun: of the Cicinnus, the inflorescences of the Bora aginacee, 
the Modes species of Helianthemum, of Drosera, and o 
Tesihee ; 
Peay 2 the most recent ae oe of his ‘Lehrbuch’ (1874, 
p. 574), defines helicoid and sg corpioid cymes just as Hofnaister 
does, and he also mentions the same exam ples 
ichler, in Vol. I. of his ‘Blitthendiagramme (1875, p. 84), 
Ws 
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chraubel (cime un nipare helécoids, Bravais) ; Seitenaxen in den 
successiven Gencealinc an immer auf relatiy die niimliche Seite der 
