250 A Mouor/rajy/i of the Myxogastres. 



whitish ; columella subglobose, white or pale yellow ; capillitium 

 sparse, delicate, whitish or slightly coloured ; spores irregular, 

 angular, blackish in the mass, -OOOSo' — -0005' long. 



Didymium angulatum, Peck, 31st Report, State Mus., p. 41 ; 

 Sacc, Syll., 1312. 



Fallen leaves. Adirondack Mountains. Aug. 



I have no knowledge of the present species except from the 

 above description from Peck. 



Didymium Paraguayense, Speg. 



Sporangia at first globose or elHptico-elongated, '5 — 1 x "5 mm., 

 sessile, rarely shortly substipitate, deep violet, siDringing from 

 a brown, mucedinous, very thin hypothallus, then hemispherical 

 or reniform, 1 — 2 mm. long by -8 — 1 mm. high, sessile, sub- 

 repens, wall white, thick, cracked or breaking up in flakes; 

 mass of spores ftdvous or ;pale huff; threads of capillitium very 

 thin, hyaline, not evanescent; spores globose, inrfcctly smooth, 

 pale olive brown, or tobacco-colour, 7 — 8 ju, diameter. Granules 

 of lime very numerous, minute, hyaline, globose, or irregularly 

 angular. 



Didymium Paraguaycnse, Spegazzini, Fung. Guarauit., n. 320. 



On fallen leaves and decayed wood. Guarapi. 



Didymium daedaleum, B. and Br. 



Sporangia connate, simcous, forming a dacdalioid mass, reddish- 

 brown inclining to orange like the stem, sprinkled with white 

 meal; stem connate, as if composed of a bundle of little flat 

 membranes ; capillitium white, vei^y variable in undth, being in 

 jjarts broad, fiat, membranous; spores violet-black, globose, 

 smooth. 



Didymium dacdalcuvi, B. and Br., Ann. Nat. Hist., n. 885, 

 p. 336 (1850); Cooke, Hdbk., n. 1131; Cooke, Myx. Brit., 

 p. 35 ; Sacc, Syll., vii., 1, n. 1313. 



In a cucumber frame. Britain. 



There is no specimen of the present species in the Berkeley 

 Herbarium, hence I am unable to add anything to the above 

 somewhat imperfect description. 



