XI. 
IABLTATS. 
Ir commonly happens that one of the first inquiries which the 
student seeks to have answered, after an interest is excited in 
fungi, is—Where, anil under what circumstances, are they to be 
found? The inexpcrienced, indeed, require some guide, or much 
labour will be expended and patience lost in secking microscopic 
forms in just such placcs as they are least likely toinhabit. Nor 
is it wholly unprofitable or uninteresting for others, who do not 
claim to be students, to summarize the habitats of these organ- 
isms, and learn how much the circumstances of their immediate 
surrounding elements influence production. Yor reasons which 
will at once be recognized by the mycologist, the most satis- 
factory method of study will be somewhat that of the natural 
groups into which fungi are divided. 
Acaricint.—There is such a close affinity between all the 
genera ‘of this group that it will be a manifest advantage to take 
together all those fleshy pileate fungi, the fruit of which is 
borne on folded plates or gills. It must be premised of this 
group that, for the majority, shade, a moderate amount of mois- 
ture, and steady warmth, but not too great heat, are required. 
A stroll through a wood in autumn will afford good evidence of 
the predilection of Agaricint, as well as sore smaller groups, for 
such spots. A larger proportion will be found in woods, where 
shade is afforded, than on open heaths or pastures. These 
wood-loving forms will consist, again, of those which appear 
on the soil, and those which are found on rotten stumps and 
decaying trees. Many of those which grow on trees have a 
