22 



DIAGNOSIS ; DISTRIBUTION. 



Table Y.— Comp 



>f the system of Mr, Maximow 



th that now proposed, 



System of Mr. Maximowicz. 



Present system. 



Tribe 



J # — LONGIROSTRES. 



1. Siphonanthse. 



2. Longirostres verticillatee . 



Tribe II.— RhyncholophjB. 



Tribe III.— YbRT1CILLAT,E. 



Tribe IV.— Bidentatje 



Tribe V.— Anodontve. 



Th 



dh 



tribe LONGIROSTRES of the first column is almost the exact equivalent of the 



even in its subdivisions, for the section Siphonanthse consists 



of tl 



name 

 of Mr. Maximowicz' sub-tribe of the same name along with tho 



of the major portion 



few opposite or whorled-leaved species that have circinnate beaks 



» 



wh 



the section 



Ort 



is 



tly equal to the 



new descriptive name is prop 



sed 



in 



d 



ib-tribe Longirostres verticillat^e for which a 

 to indicate that here it is accorded sectional 



rank 



The tribes RHYNCHOLOPHiE and BIDENTAT£3 are here treated as sections belonging 

 to one division, since they occupy the same position as regards each other that the 

 sections Siphonanthje and Orthorrhynch^e mutually occi 

 relation to Anodont;E that the Siphonanth^: and Orthorrhynctle together bear to 

 RHYNcnoLOPaffi. Finally, the tribe ANODONTJE is practically the equivalent of the division 



py 



and togeth 



bear the same 



EROSTRES, the latter, however, including in its 



section Anodont^e not merely th 



Iternate-leaved species that constitute the AN0D0NT.E of Mr. Maximowicz, but the majority 



of the species 



ed in the tribe VERTICILLAT5I. Practically, therefore, the only great 



alterat 



the system now proposed is the suppression of the tribe VERTTCILLAT.E 



The 



reasons for so doing 



h 



been already 



given, 



and the act is 



an extension to 



the rest of the genus of the treatment that Mr. Maximowicz has already shown to be 



necessary 



for the verticillate Longirostres 



The destination of the series that constitute 



the 



tificial tribe VERTICILLATE is as folio 



Myriophyll 



to 



RhYNCHOLOPHjE 



Pfotyrrhynchce, Superbce, 

 Caucasicce to § Anodont^: 



and 



Lyratce to 



Bidentat^q ; Cheilanthifolioe , Verticilhtce 



i 



and 











r 



CHAPTER IV.— GEOGRAPHICAL DISTRIBUTION 



The genus is restricted to the N 



Flora, and its species are 



almost 



tirely 



confined to the areas inhabited by its Arctic-Alpine secondary Flora, although a few are 

 extended in, or even confined to, the areas marked by the Northern Temperate-intermediate 



