LISTER I THE HAUNTS OF THE MYCETOZOA. 
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•almost every one may be seen the fiat white sporangia of 
Didymium dubium, a species considered rare elsewhere, but 
perhaps often overlooked. 
I think the most prolific “ leaf ” habitat which I have visited 
was a swampy wood of ash. poplar, and alder in Bedfordshire, 
to which we were led by Mr. James Saunders. This wood 
was supposed locally to have been the original “ Slough of 
Despond ” of John Bunyan, but we thought it better des¬ 
cribed, from our point of view, as “a land flowing with 
milk and honey/’ I remember that, when we first pushed our 
way in through the thicket of reeds surrounding the wood, 
the smell of plasmodium could be perceived distinctly, and 
soon its veins—white, yellow, and orange—were seen spreading 
over the sedges and dead leaves at our feet. One bramble 
bush was so decked with white immature sporangia of Diachaea 
leucopoda that it looked as if clothed with thick hoar-frost. 
Diderma testaceum, with its neat rows of pink sporangia, abounded 
on undergrowth of Bitter-sweet, and on the dead leaves around. 
Leocarpus fragilis formed shining brown clusters on fallen 
twigs, and here we obtained the first British gathering of 
Diachaea subsessilis, a species which had been found till then 
in New England only. I cannot attempt to tell of all the 
treasures afforded by Flitwick Wood that September afternoon, 
but we came home laden with thirty-seven species of Mycetozoa. 
Since that day, the wood has been drained, and that “Slough 
•of Despond ’’ exists no longer. 
Hedge-Clippings. —In hedge-clippings and heaps of garden 
refuse, we have a somewhat similar habitat to that of leaves 
in woodland, but the twigs and deciduous leaves are more mixed 
with decaying herbaceous plants. Here again Didymium 
squamulosum usually abounds, and with it, especially on dead 
herbaceous leaves, may be seen quantities of the small white 
scale-like sporangia of that swiftly-developing species , Didymium 
difforme. On hedge-clippings also the slender buff sporangia 
of Perichaena vermicularis may often be found scattered for 
yards along the roadside, but they are so fragile that with 
the least jar in collecting they become detached from their 
moorings and the delicate tufts of capillitium are lost. On 
the felt of hairs clothing the under surface of dead leaves of 
the Coltsfoot ( Tussilago Far jar a), a sessile form of Didymium 
