310 THE JOURNAL OF BOTANY 
508.—Fig. 4. Merceyopsis minuta (Mussoorie, 1895; leg. Duthie). 
Fig. 5.—M. angustifolia. 5a, a i leaves x 20. ae upper, 5c basal cells, 
x 200. 5d, capsule x 20. 5e, exothecium nee 
Fig. 6.—M. hymenostylioides. 6a, leaf x b, “upper cells x 200. 
Fig. 7.—M. sikkimensis (Bryoth. E. ees 1609), Ta, leaf x 20. 7b, upper 
cells x 200. 
Fig. 8.—M. ieee 8a, ert x 20. 8b, upper cells x 200. 8c, part of 
leaf i 2 transverse section capsule x 20. 82, rib of capsule x 200. 
.9.—M. eaten. 9a, “teat a 20. 9b, upper celia ie 200. 9c, nerve 
seston x 200. 
10.—Hymenostylium Shephearde. 10a, leaf x 20. 10b, upper, 10c, 
basal Lol 
ad Sow. ‘annotinum. lla, leaf x 20. 110, upper cells x 200. Ile, 
ois < s 
i Fig. 1 Pinger crenulatus (leg. Sedgwick, no. 60). 12a, leaf x 20. 
120, me a pre 200. 
Caanglovie Sedgwickii (leg. Sedgwick, no. 56). 13a, leaf x 12. 
13b, ne ‘calls x 150. 13c, supra-basal cells x 150. 
COLLODERMA, A NEW GENUS OF MYCETOZOA. 
By G. Lister, F.L.S. 
Tue late Christian Lippert has described and figured, under 
the name of Didymiwm oculatwm,* a curious species ere to 
the Mycetozoa that appeared in the winter of 1892-3 on old fir- 
wood kept moist in a cultivating chamber. This wood he had 
yim a few months previously from near Hallstatt, in Upper 
ustri 
The following is a free translation of his panto — 
DIpYMIUM 
depressed, ? to 1 mm. diam., seated on a thick bro 
at the sporangium-walls in very slender forked and dati 
free ends. Capillitiam threads hyaline at the base, brown above. 
Columella none. Spores spherical, violet-brown, spinulose, 12 to 
13 p diam. 
The spo po were at first dir white, then yell d finall 
dark brown or violet-black. 1 Ribs <r 
Lippert further set “the spores appear to be held together 
by a mucilaginous mass.” 
Thanks to the preci es f Prof. von Héhnel, I have seen 
glycerine preparations of Lippert’s specimen. They show several 
“ Ueber zwei ne ue Myxom yceten, ” Verhandl. der 
Band xiv p. 72, Tafel iv. (1894), k. k. zool. bot. Gesellsch, 
