258 NOTES ON. MYCETOZOA. 
developed nl Meera of = same meen enclosing no refuse 
matter ; usually 0:5-0'7 mm. long, 0:1 mm. thick. Capillitium a 
close network of flat eiaiieg. galing or yalle# threads, broad at the 
angles; knots very numerous, angular, bright orange, obscurely 
granular or translucent, 10-20 » diam., often densely confluent in 
oy centre of ag ——- Spores fuliginous-violet, smooth, 
Pl. 808, fig. 1). 
‘Specim en No. 56 in the Ae collection, under the name P. 
man Newliss Head M.C.C., Aug ust, 1879, and No. 68, 
arked P, Carlylei Mass., date ?, are P. jatieaiie um. 
n applying h ydrochlorie acid to the easelliireny of this species 
no sPboseones ake place, and only a few bubbles rise from the 
sporangium-wall, dct the crystalline discs remain unaffected ; 
The acid changes all the coloured parts to deep crimson, then 
red-brown : this colour is persistent in glycerine jelly ; mountings 
not gg prepared lose much of the orange tint both in jelly and 
balsa 
ei pishuks rum calidris, n. sp.—Plasmodium ?, among dead leaves. 
Sporangia subglobose, 0° 5 mm. diam., scattered, snow- -white, rugose, 
stipitate. Sporangium-wall (x 560) colourless, thickened with 
innate, more or less dense clusters of white-lime granules. Stalk 
of translucent "ai eidibe, 1-1-'5 mm. long, 0:1 mm. thick, subulate 
x equal, erect, furrowed, red-brown; not enclosing refuse matter, 
or rarely at the base. Columella none. Capillitium of colourless 
~cersiaere Nae nig few flat expansions at the angles; lime- 
kno size and form, 10-40 » diam. or more. 
ian es uae Shae leg dei smooth, 8-12 fv Bde "308 g. 
On d eaves, Lym e Regis, January, 1890. The capillitium 
varies much in sporangia of the same gathering ; in one the hyaline 
threads may be abundant, and the knots scattered ; in another the 
hyaline threads may be few, with the capillitium sneigie almost 
entirely of intricately branching knots. 
P. calidris is nearly alli = Zi the very varying species P. 
ae and it is with s achesaatic n that I propose to 
; but the straight a. oie free from refuse matter, 
aoa th he ‘bia of the plasmodium being dead leans instead of the 
peer of rotten wood, are characters which appear to mark it 
as distinct. 
The varieties of P. leucopheum are very numerous, exhibiting 
all connecting forms with Tilmadoche nutans, but in no ne of these 
have I met with the characters of P. calidris given 
It is unfortunate that Tilmadoche nutans has bea Bae from 
the genus Physarum, as it would seem to be lemggaad a variety, or 
perhaps more correctly a form of, P. leucoph 
Broome’s collection in the British heat three specimens 
very closely resemble the Lyme Hews gatherings of P. calidris. 
- No. 458, under the name of P. see nenien™ B. & Br., from 
Ceylon, is a sree form, with OR 0-8 mm. diam., and is on 
wood, but appears to be otherwise identical. 
No. 576, mar ked Didymium ?, from Thwaites, Ceylon, is on 
