I IQ 
Salmon. — A Monograph of 
teristic of that family. M. Bescherelle informs me that the moss sent 
out in Marie’s Mosses of Madagascar, nr. 269, as maveganensis , 
Besch., is in all probability the same plant as that published under the 
name S. i mayottensis , Besch. 
(7) and (8) S. crispatula (C. Mull.), Paris, and S. Wilhelmii 
(C. Miill.), Paris. — Both these species differ completely in areolation 
from Streptopogon ; they are referred to Calyptopogon by Brotherus ( 3 ). 
(9) mnioides , var. prostrata (Mont.), Jaeger. — I have already 
( 27 ) shown that this plant, the Tor tula prostrata of Montagne, is a 
true Tortula , and that it is perfectly distinct specifically from Schwae- 
grichen’s Barbula mnioides. It has no affinity whatever with the genus 
Streptopogon. 
(10) S. Hooker i, R. Brown. — This agrees in areolation with Barbula 
mnioides , Schwaegr., and must be excluded from Streptopogon. 
Brotherus ( 3 ) has placed it in Calyptopogon . 
I hope to treat fully in another place of most of the plants 
mentioned above, and need therefore only remark here that 
they are all certainly to be excluded from the genus Strepto- 
pogon. 
Removing these ten plants from the genus, we are left with 
seventeen f species ’ to deal with. A critical examination of 
these, however, reveals the fact that a very great multiplication 
of species has taken place. This has been due to imperfect 
or faulty descriptions of the plants ; to the neglect by authors 
of the work of other systematists ; and to the publication of 
a number of species without descriptions. In the following 
treatment of the genus these seventeen names will be found 
distributed among only five species and one variety. The 
reduction has taken place as follows : — 
(1) S. latifolius , Mitt., and £. setiferus , Mitt., are indistinguishable 
from S. Lindigii , Hampe. (2) S. Hildebrandtii , C. Miill., and 
S. Parkeri , Mitt, mss., are indistinguishable from S. Rutenbergii , 
C. Miill., and this seems worthy of only varietal rank under S. erythro- 
dontus (Tayl.), Wils. (3) S. rigidus , Mitt., S. Schenckii ', C. Miill., 
6’. Calymperes, C. Miill., S. Calymperopsis, C. Miill., and S. C aly ri- 
per oides, C. Mull., are specifically indistinguishable from Calymperes 
Lindigii , Hampe (S. Hampeanus , Besch.). (4) S. bolivianus, C. 
Miill., is identical with S. erythrodontus (Tayl.), Wils. 
