188 THE NORTH AMERICAN SLIME-MOULDS 



depauperate representative of some finer form. Besides the type, yet 

 to be seen in Albany, Dr. Sturgis reports the species from Connecticut 

 and from the Isle of Wight! A small gathering is before me from 

 Colorado. Every sporangium is borne upon a calcareous pedicel, very 

 short indeed, but real. The var. globosa referred to in the English 

 text under D. leucopodia has not appeared so far as reported, on this 

 side the sea, but even such variety could scarcely in the hands of a 

 collector take the place of the form now under consideration. 



Specimens of D. subsessilis from Europe correspond remarkably 

 with those described by Drs. Peck and Sturgis. Mr. Lister would 

 have our species a synonym for Lamproderma fuckelianum cracovense 

 (Rost.) Cel. 



Rare; from Connecticut to Colorado. 



4. DiACH^A BULBiLLOSA (Berk. ^ Br.) List. 



1873. Didymium hulbillosum Berk. & Br., Jour. Linn. Soc, XIV., p. 84. 

 1898. Diachaea hulbillosa Lister, Jour. BoU, XXXVI., p. 165. 

 1911. Diachaea bulhillosa Lister, Mycetozoa, 2nd ed., p. 119. 



Sporangia gregarious, globose, small, iridescent purple, stipitate; 

 stipe conical, white, sometimes brown, half-a-mm., half the total 

 height ; columella clavate, white or brown ; capillitium of purple- 

 brown threads united to form a lax net; spores violet-grey, marked 

 with scattered warts "6-8 in a row across the hemisphere", 7-9 ix. 



Java, Berkeley &' Broome, op. c. Toronto, Canada; cited here by 

 courtesy of Miss Currie who gives the spores 7.8 jx. 



5. DlACH^A THOMASII Rex. 



Plate V., Fig. 6, 6 a. 

 1892. Diachaea thomasii Rex, Proc. PhiL Acad., p. 329. 



Sporangia gregarious, more or less crowded, purple and bronze, 

 iridescent, globose sessile or short stipitate; stipe, when present, very 

 short, thick, tapering rapidly upward, orange; hypothallus orange, 

 prominent venulose, continuous; columella ochre yellow, rough, cylin- 

 dric, tapering upward to one-half the height of the sporangium, ob- 

 tuse; capillitium lax, of slender brown rigid threads, radiating from 

 the columella in every direction, anastomosing to form a loose, large- 



