460 NEW ARRANGEMENT OF 
Horae Physicae Berolenses," has figured the beautiful S. 
Adamsonianum, of which we have no authentic specimens. 
A plant has been recently communicated to us by Dr 
Hooker, brought home by Captain Parry in his second 
Expedition, and which is no way different from the Kamt- 
schatka one : Dr Hooker at the same time mentioned that 
he considered this identical with the S. paradoocum of 
Brown. It appears a good species, intermediate between 
*S'. tenue and mnioides. We can scarcely presume to judge 
of *S'. arcticum, propinquum^ and exsertum, of Brown, 
in the Appendix to Parry's first Voyage, as we have not 
specimens ; but we cannot resist the suggestion that they 
may be different states of that polymorphous species *S'. 
mnioides, — nor do we even venture thus far, without having 
examined very many varieties of what we consider S. miii- 
aides, presented to us by Mr Edwards, and other gentle- 
men who accompanied Captain Parry on his second voy- 
age. 
After subtracting from the twenty-two species, described 
by Bridel, those which are mere varieties, and some spe- 
cies belonging to other genera, and adding to the remainder, 
*S'. octoblepharum (Hook.), S, WormsJcioIdii (Hornem.), 
S. longicoUum (Dicks.), and S. Adams onianum (Hornsch.), 
we shall count sixteen well-established species 
• Of those we reject, S. Wulfenianum is Orthotrichum Ludwigii 
(ScHW^Gft.) — S. Froelichianum we place under Dissodon (excluding, of course, 
Gt/mnostomum Griffithianum^ confounded with it by Bridel and Swartz).— 
S. lingulatum is our Disaodon splachnoides,—S. serratum and Jiagellare are 
varieties of S. tenue.-—S. Brewerianum, a variety of jS'. mnioides.— -S. seta- 
ce«n», certainly only a variety of S. angustatum. — S. ovatum and gracile^ 
varieties of S. sphcBricum — S. pusillum^ according to Pallisoi's Herbarium, 
is S. vasculosum.-—S. Turnerianum does not differ from. S. ampullaceum. — 
As to S. Juressif we have not seen it, and know not what to make of it. 
