143 



presents soine analogy with the Tubiflorae, as is shown in the Moringacase'^ 



and Bignoniaceas (Dalzell). Thns, the relation of the series is found to be 



not only with the Ranales and the Parietales, bufc also wifch the several ofcher 



series, from the Centrospermaa all the way up to the Tubifloree. The natural 



position of the series is, therefore, necessarily dynamic. 



Tlien, come the Sarraceniales'', to which Engleu refers a^ follows : — 



Eine Parallelreihe der Rhoea/Jales habe ich in den Sarraceniales geschaffen. Die 

 Sirracehvireaj hat man in enge Verbindung mit den Nympha;acea: und die Papaveracece 

 bringen wollen, und es ist anch ganz gewiss, dass niese FamiKen in der Anordntmg 

 der Bliitentcile mancherlei tJbereinslimmtmg zeigen. Per spirocyHische Eaii der 

 Blilten von Sarracenla erinnert stark an ^'ymphaiit ; aber die Placentation der Snrra- 

 cenacea; ist verschieden von der der ^ympha; irea; und der Fapiver^tcea;; die vorherr- 

 schend centralwinltelst;tndigen Placenten der itarraceria'es sind es auch, welehe diese 

 Keihe von den Pihoeaddles unterscheiden. 



But, the real relations of this series to other ssries ai'e manifold. Its relations 



to the Ranales, lihoeadales and Arisk)lochiales have already been discussed. 



Moreover, ifc resembles the Rosales, as will be seen in the Droseraceae"'^ and 



Saxifragacege (especially in Parnassla) bofch of which agree in the perigynOus 



insertion and in the ovary in the transitional sfcage. The connecfcion of the 



SaiTaceniales with the Parietales is to be found in the Droseraceae''^ and 



Cisfcaceae or Violacese in the hypogynous inserfcion and in the real parietal 



placenta. Thus, the relations of this series to others are rather extensive. Its 



position in the nafcural sysfcem should, therefore, be dynamic. 



Here, nexfc to the Sarraceniales, Engler puts the Kosales'^^ which in its 



relations to ofcher series is rafcher perplexing. Its relations to the Sanfcalales 



Leifcneriales, Centrospermse, Ranales, Bhoeadales, and Sarraceniales have been 



discussed one affcer anofcher in course. Ifc remains to compare it with other 



series. Its resemblance to the Parietales is mosfc clearly manifesfced in the 



agreemenfc of the Crassulaceae'^^ and EL.tinaceae''^ in their isomerous flowers 



(Brongniart, A. Braun) ; in the agreement of the Saxifragaceae and the 



Euciyphiacese^^ ; of the former family and B^oniaceae''^ in the somewhafc 



1) Nat. Pfl.-fam. III.— 2, p. 243. 2) Enqleb, A. — Erl iuterangen, 1. c. p. 365. 



3) Nat. Pfl.-fam. IIL— 2, p. 267. 4) Nat. Pfl.-fam. IIL— 2, p. 267. 



5) Ekgleb, A. — Erlauterungen, 1. c. p. 365. 6) Nat. Pfl.-fam. IIL— 2, a, p. 28. 



7) 1. c. in.-6, p. 280. 8) 1. c. nr.-6, p. 131. 



9) 1. c. in.— 6, a, p. 13L 



