2 
t 
ACE, TO" TIT NER P 
; 
E 
1 
E 
: 
46 PROF. JULIUS MACLEOD ON TEN 
TABLE XX. 
Description of. Mnium rostratum, Schrad. 
A.—Specific limits of variation. 
[Great Britain: Alston to High Force, Dunkeld, Llangadock, 
Whaley Bridge. ] . 
. Length of the leaves: 4:35-8:32 mm. 
2. Breadth of the leaves: 1:80-3:19 mun. 
” ” 
1 
2 
3. ” ” » 
4 
5 
at their base: 0:73-1:24 mm. 
5. Number of cells: 62-97. 
cells: 23-34 u. 
6. Breadth of the border: 69-125 y. 
7. Number of cells of the border: 6-12. 
8. 5 
9 T double marginal teeth: 0. 
Oa 
11. Length of the nerve: nerve always reaching the summit (one leaf doubtful). 
19. Tooth at the summit of the leaves: always existing. 
13. Number of leaves: 12-21. 
14. » 
fruits: 1-4. 
B.—Gradation of the characters. 
teeth on the nerve at the back of the leaves: 0. 
[One patch: Alston to High Force, 9 stems.] 
Intervals : 
Length leaves (mm.) ...... 
Breadth leaves (mm.) 
2.1 -Dase (m). 2:21 
quoa EMISIT S 
Number cells ....... Vis 
Breadth border (u). ....... 
O DOTAS. esie rene 
Marginal teeth .......... 
Double marginal teeth .... 
RIBOD EDEL VG. LAN Le ces i sve 
ono NERVE 5 opos Ces vie 
OON BAITIT a o errors 
l. 
223 
132 
2. 
2:95 
1-80 
075 
29 
55 
89 
9 
0 
0 
TE 
JJ 
3. 
30i 
D 
0-73 
4. 
4:07 
2-04 
0:78 
5. 
4:04 
2:18 
0775 
3l 
59 
88 
8. 
5:59 
2:40 
0:84 
30 
73 
90 
9 
marginal teeth : ? (teeth rather numerous, but partly obsolete). 
