Fliys((ri(m. 295 



Pliysarwm roseum, Berk, and Broome, Fungi of Ceylon, ii., 

 n. 760, in Journ, Linn. Soc, vol. xiv,, p. 84; Rost., Mon. 

 Append., p. 10; Sacc, Syll., vii., 1, n. 1194. 



(Type in Herb. Berk,, Kew.) 



On grass, moss, bark, &c. Ceylon ; Paraguay. 



Gregarious, '2o — 3 mm. high. Closely allied to Pkysarum 

 pulchcrrimiim, of which the present species may eventually 

 prove to be only a varfety. The spores are generally smooth 

 under a jVth objective, but some show a minutely verruculose 

 surface. 



Physarum ornatum, Peck. 



Sporangia depressed or hemispherical, plane or slightly con- 

 cave beneath, greenish-cinereous, dotted with small yellow 

 granules, the empty walls whitish ; stem short, black or Uacldsh- 

 h'Gwn, generally longitudinally wrinkled when diy; columella 

 none ; ca^nllitium with mimerous, yelloiv, hnot-lihe thickenings ; 

 spores globose, smooth, violet-brown in the mass, '0004' — '0005' 

 in diameter ( = about 10 — 11 \x). 



Physarum ornatum, Peck, 31st Report of N. York State Mus., 

 p. 40; Sacc, Syll., vii., 1, n. 1220. 



Decaying wood. Albany, U. S. 



Physarum Petersii, B. and C. 



Gregarious, stipitate, sporangia globose, wall thin, yellow, 

 with a thin sprinkling of minute particles of lime that soon 

 disappears ; stem elongated, slender, subequal or slightly thicker 

 below, expanded at the base into a small, orbicular hypothallus, 

 rcddish-hrovm, longitudinally wrinkled and filled with lime; 

 columella subglobose or shortly cylindrical, whitish ; capillitium 

 rather dense, forming an irregular network, threads thin, with 

 scattered, elliptical, interstitial swellings containing yellow granules 

 of lime, nodes rarely swollen ; spores dirty lilac, smooth, 7 — 8 /m 

 diameter. 



Physarum Petersii, B. and C, Grev., vol. ii., p. GO; Rost., 

 Mon., p. IIG, Append., p. 6 ; Sacc, Syll., vii., 1, 1174. 



