122 THE AUSTRALIAN NATURALIST. 
A wattle tree covered the shed, and in opening out 
the ground we found a young Cicada crawling up one of 
its roots. When we opened the wasp’s nest from the side, 
so as to see the vertical shaft, we found that it was 814 
inches from the surface to the bottom of the hole. It 
was only the beginning of a nursery, so we took the wasp 
and the spider, and then measured the distance she had 
traversed. It was 43 yards, almost in one direct line, just 
turning once at an angle after she backed through the lat 
tice. We had been watching her for over twenty minutes. 
NOTES ON SOME CURIOUS FORMS OF WANDER- 
ING LICHENS, INCLUDING THE SO-CALLED 
“MANNA” OF THE ISRAELITES. 
By Epwin CHEEL. 
At the July, 1918, meeting of the Linnean Society of 
New South Wales (vide Proc. Linn. Soc., N.S.W., Vol. 
xxxvill. (1913) 396), I exhibited some interesting speci- 
mens of a lichen (Parmeliopsis semiviridis), which have 
a peculiar habit of wandering about from place to place, 
and are also peculiar in that they inroll during dry wea- 
ther, and unfold in damp or rainy weather. In addition 
to the various proceedings of scientific societies in which - 
this species is recorded under various names, I pointed 
out that it was originally collected in Tasmania by Robert 
Brown in 1802-1805, and afterwards on the Murray River 
by Baron von Miller, and at Belltrees, Scone, by Mr. H. 
L. White, and Old Man Point, Canoblas, by Dr. T. Har- 
vey Johnstone. Since the above note was published, I 
have received a fine lot of specimens from near Cooma, 
in this State, collected by Mr. G. Marshall, who sends the 
following interesting particulars concerning it :—‘‘Origin- 
ally it was noticed on portion of the open common graz- 
ing land here, about two miles east of Cooma. It was 
seen there each year, but this year none has been noticed 
on the old area, but it has shifted further east, about 
another mile, on a hilly slope, covering about 100 acres, 
and in fair abundance.’’ A slightly broader form des- 
eribed under the name var. major, has been recorded for 
Spencer’s Gulf, and Mount Elm, collected by Mr. Giles, 
and from Fraser’s Range, 8.A., by Mr. R. Helms, as well 
