404 
FERNS : BRITISH AND FOREIGN. 
the same manner. Upon close examination, however, 
previously formed embryo buds are observable and 
considering, too, its close affinity with the Aspleniums, 
the most proliferous (in the formation of bulbils) of 
all Ferns, this cannot be wondered at. To propagate 
Ferns by the buds produced on their foliage is most 
easy. As soon as the bulbil plants have attained a size 
to be handled conveniently, they should be carefully 
taken off and pricked out in pots filled with mode- 
rately fine soil, and kept covered with a bell-glass till 
thoroughly rooted, when they may be potted off in 
single pots, as required. 
Species with long, slender, hard sannentum, such 
as Gleichenia, do not root readily when separated ; in- 
deed, large plants have been entirely destroyed by too 
free division of their sarmentum; to prevent this, layers 
are resorted to, which is accomplished by fixing pro- 
longing sarmentums over small pots filled with soil, 
which, when well rooted, can be separated with safety, 
and without injuring the specimen plant. Again, in 
regard to the division Eremoibrya, they are not onlv 
remarkable in the sterility of their spores, but also in 
not producing viviparous buds; however, the readiness 
with which small portions of their rhizomes form 
plants, and the already described tenacity of life, seem 
to make them independent or to render less need of 
perfect spores or bulbils. 
In concluding this treatise, I deem it necessary 
to explain, that, in consequence of the woodcuts 
occupying more space than was calculated for, and 
in order to keep the book within a limited size, 
it has become necessary to considerably reduce the 
original manuscript on Cultivation. It is, however. 
