ON THE SEEDS OR SPORES OF FUNGI. 183 
Fig. 2 shows the dargest spores I ever observed: they are pro- 
duced by Agaricus mucidus, an Agaric with a top two inches in 
diameter, not uncommon on old beech trees ; its average diameter 
is one two-thousandth of an inch, and it requires 2,000,000 
placed side by side to cover a square inch,—so much for the 
largest spore ! 
On fig. 3 are the spores of Boletus parasiticus, of which the 
common Boletus edulis may be taken as the type. Itis remarkable 
that all Boleti spores are spindle-shaped ; they vary little in 
size, and the majority are brown in colour. 
On fig. 4 are the spores of Agaricus vaginatus, one of the 
commonest of our larger Agarics ; the apiculus shows the point of 
attachment to the parent plant. 
Fig. 5 shows a very uucommon form of spore from Hydnum 
imbricatum ; itis peculiar to the genus Hydaum, of which the 
common Hydnum repandum may be considered the type. 
On figs. 6 and 7 are typical spores of the pink-spored fungi ; 
they are always irregular in shape, resembling nodules of 
_ granite—the form is not caused by compression. Fig. 6 is from 
| Agaricus pascuus, fig. 7 from A. nidorosus. 
On figs. 8, 9, and 10 are spores of the milk-bearing genus 
Lactarius: théy are always more or less curiously papillated, and 
_ vary in colour from white to orange. Fig. 8 is from Lactarius 
blennius, fig. 9 from L. fuliginosus, fig. 10 from L. quietus. 
Fig. 11 is a spore of the Meadow Mushroom, Agaricus cam- 
_ pestris. It is purple-brown in colour. 
Fig. 12 shows a slate-coloured spore of Gomphidius viscidus, a 
_ handsome Agaric with purple gills, not uncommon in the autumn. 
Fig. 13, one of the jet black spores of Coprinus micaceus ; this 
is one of the black-gilled deliquescent fungi. The species in 
_ question is common on rotten stumps in the autumn, and the 
-pileus is clothed with sparkling mica-like granules. 
_ The spores are uniformly enlarged to 1,000 diameters: 
¥ a good idea of the size of all of them may be obtained by con- 
_ siderigg the dimensions of figs, 1 and 2. 
; Wortnineron G. Surrn. 
