208 THE NORTH AMERICAN SLIME-MOULDS 



10. HEMITRICHIA MONTANA Morgan. 



Sporangia scattered or gregarious, more or less closely, glo- 

 bose, whitish, sessile or very short stipitate ; the peridium 

 opaque, dull white, persistent below ; capillitium deep yellow, 

 the threads abundantly branched, forming a compact network, 

 7 n wide, bearing spirals five or six, uneven and irregular, or 

 anon interrupted, conspicuously spinulose or warted, free tips 

 not lacking, generally inflated ; spore-mass yellow, spores by 

 transmitted light pale, nearly colorless, distinctly warted, 10 p. 



Recognizable by its peculiar pallid, sessile sporangia, as by 

 the internal structure. Perhaps related to Hemiarcyria buck- 

 nalli Mass. Our specimens are from Mr. Morgan, of Ohio, 

 with the statement that they were collected in the San Ber- 

 nardino Mountains, California, by Mr. S. B. Parrish. 



2. Calonema Morgan. 

 1893. Calonema Morgan, Jour. Cin. Soc., p. 33. 



Sporangia sub-globose, crowded or superimposed, irregular, 

 sessile ; hypothallus none ; capillitium of slender tubules, arising 

 from the sporangium base, branched, marked with branching 

 veins in an irregular reticulation, and terminating in free ex- 

 tremities. Spores yellow. 



i. CALONEMA AUREUM Morgan. 



PLATE XIII., Figs. 2, 2 a, 2b, 2c. 

 1893. Caloiiema aureuin Morgan, I.e. 



Sporangia crowded or heaped in scattered clusters ; peridium 

 thin, golden yellow, adorned with intricate radiating veinlets; 

 capillitium of threads more or less branched, attached below, 

 free above, the surface to the very tips venulose, interrupted 

 with rings or fragmentary spirals, the apices bulbous and ob- 

 tusely conical ; spore-mass yellow, spores by transmitted light 

 bright yellow, covered by a network of interlocking plates, as 

 in T.favoginea, globose, 14-16 /^. 



