ON THE DISTRIBUTION OF PLANTS. 195 
rof. oe — :—I agree with Dr. Spruce and you in 
considering Tem = Blepharostoma. To the same genus I must 
er Jungermania > onforaiel the description of its colesule I copy 
m my manuscript. 
+ ne infima basi excepta, ubique unistrata, superne sub- 
co or onge ciliato, triangularis, angulo postico 
att ceteris duobus lateralibus obtusioribus, antice subplana, 
que facies antica basim format trianguli (in sect. transversa 
e 
revioribus, minus profunde sectis, lobis minus incurvis, brevioribus 
et ations intus concavis, minus reflexis in marginibus fere 
integris, cellulis fere duplo minoribus, magis incrassatis, rotundo- 
se a sd eo paucioribus et minoribus (Blepharostoma 
<craid Lindb. MSS.).” 
ESCRIPTION oF Prats 275.— Fig. 1. — nat. size. - Leaf and under- 
leaf from upper portion of stem x 24. 3&4. Leaves x 24. 5. Basal leaf x 64. 
9. Portion of leaf x 290. 7. hae and webmitp x 24. 8 & 9. Bracts x - 
10. Bracteole x 24. 11. Perianth x 2. Cross section of perianth x 
13. Portion of mouth of perianth x 64. ‘14. Pistillidium x 85. 15. Valves rel 
capsule x 24. 16. Perigonial leaf x 64. 17. Antheridium x 64. 
ON THE DISTRIBUTION OF PLANTS.* 
By Axet Buyrr. 
Tur distribution of plants is essentially dependent oer climate. 
We find, for instance, on the west coast of Norway many plants 
which are wanting in the inner and eastern parts, and 4 hag last 
have i rm many which are missing on the her And in most 
continental mountain tracts we have a rich arct 
ese groups of species, more or less charnatansie of certain 
climatic conditions, are, however, also more or less dependent on 
the nature of the substratum oor limestone ae friable slates we 
find a flora different from that of the gneiss and granite. In 
restricting our researches to neta we may find many 
jal Address to the Botanical Section of the Association of Scandinavian 
‘Naturalists, Christiania, July, 1886. 
