284 BOTANICAL GAZETTE [OCTOBER 
in the development of bulbils were drawn with the same magnification, using 
4 mm. objective and no. 12 eyepiece. The text figures are microphotographs 
taken by W. J. WESTERBERG. The plates have all been reduced in repro- 
duction about three-fourths. 
Fics. 1-16.—Papulospora pallidula. 
Fic. 1.—Hypha showing large oil globules. 
Fics. 2-6.—Dichotomously dividing primordium 
Fics. 7, 8.—Primordia more or less irregular in hess dichotomous branch- 
Fic. 9.—Further development of bulbil. 
Fics. ro-12.—-Second mode of forming a bulbil. 
Fic. 13.—Mature bulbil germinating. 
Fic. 14.—Cells of an old t bulbil loosely adhering to each other; some of 
cells germinating. 
Fics. 15, 16.—Terminal primordia. 
Fics. 17-24.—Papulospora byssina. 
ing 
Fic. 24.—Primordia of at least 3 bulbils ad same filament at a, b, and ¢ 
ern s 
25-38.—Papulospora aurantiaca. : 
Pros. 25-32- —Variations in mode of coiling of primordium of bulbil. 
Fics. 33-38. of bulbil. : 
Fic. 39.—Germinating bulbil of  Populespora magnificus. 
_ Fics. 40-47.—Papulospora nigr : 
Fie. 40-—Portion of hypha showing large il globules and clamp comme i 
ee ny Sige, inthe macy Serenata ee Np : 
he ichsec oo of oe with haces pie cells ——* fled 
