500 REVISION OF THE GENUS SYMBLEPHARIS. 
fact, already been done, by including Holomitrium perichatiale, 
Brid., in the genus, for the peristome here is similar in arrange- 
ment to that of the New Guinea moss. H. perichetiale is 
evidently in other respects closely related to Brotherus’s plant. 
To the list of Excluded Species, given above, should now, there- 
fore, be added S. obliqua, Broth. MS. in Herb. Kew — Holomi- 
E. S. S.] 
trium obliquum, Salmon. 
"th June, 1898. 
EXPLANATION OF THE PLATES. 
PLATE 25. 
Fig. 1. S. helicophylla, Mont. ; mouth of capsule, with wet connivent peristome. 
x 52. 
2. Four teeth of same, united in pairs. x 150. 
3. S. helicophylla, Mont., var. tenuis. Nat. size. 
4. Ditto; capsule. x 25, reduced to half size. 
wet connivent peristome. X 52. 
portion of peristome. Xx 150. 
» spores. X 255. 
» leaf. X 25. 
10,11. , apex of two leaves. X 150. 
12,13,14. ,, — areolation of leaf at a, b, & c. X 255. 
15. ,, trans. sect. of leaf-base. x 400. 
16. , » upper part of leaf. x 400. 
17. S. helicophylla, Mont., var. microtheca; capsule. X 25, reduced {0 
half size. 
18. Ditto; mouth of capsule. x 52. 
19. ,  twoteeth of peristome. X 150. 
20. ,, spores X 255. 
21. ,, leaf. x 25. 
22,283. ,, apex of two leaves. x 150. 
PraTE 26. 
Fig. 24. S. helicophylla, Mont., var. macrospora; capsule. X 25, reduced 
to half size. 
26. Ditto; spores. x 255. 
28. S. Chrismari, ©. Müll.; areolation of upper part of leaf. X 255. 
29. S. fragilis, Mitt.; trans. sect. of leaf-base. x 400. 
30. Ditto; trans. sect. of upper part of leaf. x 400. 
31. S. socotrana, Mitt. ; trans. sect. of leaf-base. 400. 
32. Ditto; trans. sect. of upper part of leaf. x 400. 
33. S. Lindigii, Hampe ; portion of peristome. x 150. 
