CHAR# AUSTRALES ET ANTARCTICA, 203 
b. Chare di s picto ipri ad bs verticilli serie duplici. 
a, ecorticata, atis 
B, cor ticate isostiche, wake corticato, seriebus tubulorum cor- 
icis simplici foliorum numero (foliis corticatis). 
To a belongs Ch. denudata, A. Br. from South Africa; to 8, Ch. imperfecta, 
A. Br., from North Africa, and the European Ch. crinita, Wallr. 
y. Cornea ' diplostiche, caule cortieato, seriebus tubulorum cor- 
‘0 
* gymnophylle, foliis ecortica! 
* * nhleophylle, foliis soap articulis superioribus 
nonnunquam nudis. 
To * belongs Ch. Kokeilii, A. Br. and Ch. gymnopAylla, A. Br. from the South of 
Europe; to * * et _ foetida, A. Br. (vulgaris, Auct.), contraria, A. Br., strigosa, A. 
Br., tenuispina, A. Br., papillosa, E quie Auct., Baltica, Fries, Rabenhorstii, 
A. Br., ee Wallr. LiT osa, L.,) an 
LU iche, we aan seriebus tubulorum 
pas triplici foliorum num 
* phleopodes, foliis inde a basi corticatis. 
The European species belonging to this division are Ch. aspera, Willd., galioides, 
De C., connivens, S ., and fragilis, Desv. (vulgaris, L.,) 
* * gymnopodes, foliorum articulo infimo  ecorticato, 
sequentibus corticatis. 
The sera belonging to this division are all exotic, as Ch. gymnopus, A. Br. 
from Egypt, Ch. Commersonii, A. Br., from Isle de France and eben Ch. poly- 
phylla, A. Br., with its varieties from. East India, North and South Ameriea, Ch. 
sejuncta, A. Br., from South Ameri 
It is one of the singularities resulting from the preceding enum 
tion, that all the true Chare of Australia belong to the divisio © Flaite. 
stephane ; while in all other parts of the earth the division of Diplo- 
stephane predominates, a division which seems entirely absent in 
Australia. In this manner the same law appears to be repeated in the 
little family of Characee, that prevails in the great divisions of the vege- 
table and animal kingdom in Australia, namely, the law, according to 
which even the most perfect types, having received the largest extension 
in other parts of the world, and es aa PR in the old, are completely 
wanting, or scarcely represented in Aus 
Freiburg, Grand Duchy of Baden, March, 1849. 
