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As this work is not destined to be completed according to
the plan originally intended, I shall venture to introduce a few
plants from the more southern parts of the kingdom, in order
to illustrate some genera not hitherto noticed iu Scotland.
One of these forms the subject of the present description; and
though not to my knowledge found even in England to the
northward of the midland counties, yet, as it enters into the
floras of Norway, Sweden and Lapland, there is every reason
to conclude that it inhabits of every part of our island.
The systematic situation of Tulostoma is near Geastrum
and Lycoperdon; and if W a h l e n b e r g be correct in saying
that traces of a volva are sometimes to be observed at the root,
its affinity to Geastrum becomes, as he observes, very near indeed.
From the whole of the suborder Lycoperdinei, it is
distinguished by its regular, marginated orifice.
D e C a n d o l l e has considered T. squarrosum of P e r s
o o n as a variety of T. brumale; but, judging from Mi-
c h e l i ’s representation (t. 97. f. 7.), I am inclined to think it
a well-marked species.
I
Fig. 1. T. brumale. Fig. 2. A section, natural size. Fig. 3. Portion o f the
peridium, with the Jilaments springing from the inner surface. Fig. 4. Filaments
and sporidia ; magnified.