732 
359 . Weissia. 14. MUSCI. 
PL cell, f oh 
14. Weissia Calcar ea. Limestone weiss * 
Stem scarcely any ; leaves broad at bottom, linear, blunt, 
thick, main rib very broad ; capsule topshape ; lid beaked. 
Weissia cakarea, Hedw. S. Muse. 66. 
Bryum calcareum, Dickson Crypt. 2, 3. 
Grimmia calcarea, Turner M. Hib. 25. 
On chalk ; perennial ; spring and summer. 
Resembles very strongly polytrichum aloides, but is 
smaller. 
15. Weissia recurvata . Bent-hack weiss. 
Stem scarcely any ; leaves awlshape ; capsule broad, 
ovate ; pedicells bent ; lid beaked. 
Grimmia recurvata, Hedw. S. Muse. 75 ; Engl. Dot. 1489. 
Bryum recurvatum, Dickson Crypt. 2, 7. 
Bryum setaceum, JYulfin Jacq. Misc. 2, 96. 
On sandstone-rocks. 
1 6. Weissia pusilla. Dwarf weiss . 
Stem scarcely any ; leaves awlshape ; capsule ovate ; pe- 
dicells upright ; lid beaked. 
Bryum paludosum, Lin. S. P. 1584. 
Grimmia pusilla, Roth Germ. 3, 147 ; Engl. Bot. 2551. 
Weissia pusilla, Hedw. S. Muse. 64. 
Afzelia pusilla, Ehrh. Crypt. 183. 
On limestone-rocks. 
17. Weissia verticillaia. Whirled weiss. 
Stem branched ; leaves broad, awlshape, nearly flat, ra- 
ther weak; capsules ovate; lid beaked. 
Bryum trijfchoides brevifolium, angustis cauliculis, capsulis erectis 
parvis et minus aduncis, Dillen. in Raii Syn. 98, 36. 
Bryum verticillatum, Lin. S. P. 1585. 
Bryum fasciculatum, Dickson Crypt. 3, 3. 
Weissia verticillata, Schwecgr. Supp. 20. 
Grimmia verticillata. Turner M. Hib. 31 ; Engl. Bot. 1258. 
In alpine rivulets, on limestone. 
Stem frequently encrusted at bottom with carbonate of 
lime. 
18. Weissia acuta . Pointed weiss. 
Stem branched ; leaves awlshape, bristlelike, nearly one- 
rowed, stiffj grooved ; capsule topshape ; lid beaked. 
