268 BOTANICAL GAZETTE [OCTOBER 
The substrata were put in moist chambers, and as the bulbils 
appeared they were picked out with sterilized dissecting needles 
and transferred to tubes containing nutrient material. 
Description of species 
Bulbils are in all cases to be regarded as imperfect conditions 
of higher fungi. As has already been indicated, some have been 
definitely connected with perfect conditions belonging to widely 
separated genera of both Ascomycetes and Basidiomycetes. Those, 
however, that are to be considered in the present article have thus 
far baffled every effort to induce them to produce any perfect form, 
even after 7 or 8 years of cultural study. Two of these are doubtless 
ares since their mycelia possess clamp connections, 
while sh me evidence that it belongs to the Pyrenomy- 
cetes. It is the aim of the present article to contribute further 
information regarding the occurrence, morphology, and develop- 
ment of bulbils, and also to bring together the described species 
in the form of a key to the genus Papulospora. 
ospora pallidula, n.sp. (figs. 1-16; text fig. 2). —Mycelium 
white, procumbent, scanty on most media; bulbils colorless, becom- 
ing pale yellow when old, somewhat spherical, 70-100 » in diameter, 
sometimes elongated to 1404; primordium of two kinds, one 4 
short lateral branch which divides dichotomously of 3 or 4 orders, | 
occasionally more, and the other a group of intercalary cells. No 
other means of reproduction at present known. 
On trois colearre oi Soe ane ete Gentoo and Claremont, California; 
also on rabbit dung from Ontario. 
The substrata were put into moist chambers and, when the 
bulbils appeared, transfers were made, eventually producing pure 
cultures. ee a 
— ind Sead potas such as ue ae eas : : 
