1917] HOTSON—BULBIFEROUS FUNGI 275 
the fruiting bodies of Sporodesmium aurantiacum B. and C., already 
mentioned. In their early development the bulbils are usually 
very irregular in outline, owing to the projection of secondary 
branches which become less prominent in the mature form. 
Frequently the bulbils appear as orange or yellowish patches 
scattered over the surface of the culture instead of being distributed 
evenly. This is due to the fact that the primordia are often pro- 
duced in large numbers on a single branch, as shown in figs. 35, 36. 
As these develop, a corresponding number of bulbils are produced, 
which adhere together for a considerable time, superficially 
Fics. 5, 6.—P. nigra: fig. 5, group of ee bulbils; fig. 6, , group of mature 
bulbils, showing general form and variations in size. 
resembling sclerotia. As a rule, these bulbils develop very dooty, ; 
usually taking several months before they mature. Eventually, 
however, as the substratum becomes dried up, the individuals 
Separate into powdery, orange colored masses. The bulbils 
germinate readily in nutrient fluid, several - which are shown i Se 
text fig. 4. 
Papulospora nigra, n.sp. Poe 40-47; Noe ey 5 6) Mycelium Ee : 
white, procumbent, scanty, oil globules and clamp connections 
_ Conspicuous; bulbils colorless at first, becoming dark brow: 
black, nearly spherical, roo-180 in dane at maturity; pri- 
: sims one or more short lateral, peace: which coil up 
