1917] HOTSON—BULBIFEROUS FUNGI 273 
Papulospora aurantiaca, n.sp. (figs. 25-38; text figs. 3, 4).— 
Mycelium white at first, becoming yellowish with age, procumbent, 
scanty on most media, densely filled with oil globules, clamp con- 
nections sparingly produced; bulbils pale yellow, becoming orange, 
nearly spherical, frequently aggregated, 100-250 in diameter; 
primordium a spiral of one or two turns. No other mode of repro- 
duction at present known. 
On bark collected by Dr. THAXTER near Port of Spain, Trinidad, W-I. 
Fics. 3, 4.—P. aurantiaca: fig. 3, mature bulbil; fig. 4, several germinating 
bulbils. 
The mycelium of Papulospora aurantiaca is somewhat incon- 
spicuous, the hyphae being small, usually about 2-5-3 .5 u in diam- 
eter, and scanty. On certain media, like cornmeal or bran agar, it 
omes more marked but never profuse on any media tried. 
These included such nutrient material as potato, sugar, bran, 
cornmeal, prune juice, horse dung, various kind of wood, etc. 
The hyphae contain large numbers of oil globules which vary 
considerably in size. When the filaments are crushed these float 
out into the water, a number frequently fusing together and some- _ 
_ times forming large spherical globules 17.5 # or more in diameter. 
Many and varied experiments have been made in the hope of - 
causing the fungus to produce its perfect form, but thus far all oo 
__ efforts have failed. That it is a Basid dily seen by 
Ae presence of os connections in the myelin. a : 
