‘CRYPTOGAMIA. 353 
abundance of spherules of a milky colour, supported upon 
edicles. ee 
Under the highest magnifier, these substances appear 
to consist of a very pellucid and tender pedicle, supporting a 
nearly opake globule, filled with a granulated mass. f. 13. 
When ‘the leafits and leaf are quite unfolded, all these 
substances disappear, whilst those on the under surface 
gradually enlarge, and ripen their seed. (Hedwig.) 
ASPLE’NIUM Trichomanes. Whilst this springs out 
of the ground, and is yet rolled inwards, the leafits are 
very minute and fleshy. On their under surface, when 
highly. magnified, crescent-shaped membranes may be 
perceived covermg the minute grains, which afterwards 
become capsules. f.14. At the same time, but chiefly 
towards the middle nerve of the leafit, white shining glo-., 
bules are found. These put into a drop of water, and 
viewed with the highest magnifier, will be seen to consist 
of a thick and very transparent foot-stalk, supporting a 
globule filled with a granulated mass. f. 1. 
It is unnecessary to be particular respecting the 
AspLenium Scolopendrium, Aspv. Ruta-muraria, Poty- 
popium F. Mas. Potyrop. Phegopteris, Potypop. 
Dryoplestt all which I have He Hh in.a recent state, 
and in all which I have found similar organs, at the time 
the leaves first, put forth. nea A ei 
The membranaceous scaly productions upon the stalks, 
so plentiful in some species, have probably been the cover- 
ings of the now expanded parts, during the winter seasons. 
_ There can be no doubt as to the uses of the other parts 
described above. None of these are found in the full 
grown plant. It is well known that whilst perennial 
plants ripen their seeds, the formation of new fructifications 
is going on... It is shewn, that the Eavisera perform | 
their impregnations before they spring up. When the 
~ curled-up leaves of the Ferns begin to unfold, the Capsules 
are generally swollen; this a agodarg obvious in the 
1S i bai oe up early in 
the spring, and ripen their capsules in July. 
ly Pacet caie ee dhe in these chiles are real 
horizontally into two hemispheres, which are surrour 
by an elastic ring. (Hedwig.) eee 
Vox, I. AA 
