1921] - SPENCER—BRAZIL NUTS 201 
Fic. 6.—Thallus of Actinomyces brasiliensis n. sp. on cornmeal agar; X 2}. 
Fic. 7.—Colony of Bacillus from Brazil nut on cornmeal agar; X2. 
Fic. 8.—Pellioniella macrospora n. sp. in autoclaved rice; tube on right 
20 days old; tube on left 10 days old; Xx. 
Fic. 9.—Brazil nut 30 days after inoculation with Pellioniella macrospora 
n. sp.; nut plug at top marks place of inoculation, and along two edges inner 
seed coat removed to expose blackened endosperm; Xr. 
Fic. 10.—Thallus of Actinomyces brasiliensis n. sp. on Brazil nut agar, sur- 
rounded by transparent area in which proteids have been digested owing to 
secretion of proteolytic enzyme; X13. 
1G. 11.—Thallus of Pellioniella macrospora n. sp. on cornmeal agar: 
three zones: (1) scarcely visible outer zone of white; (2) zone of nearly same 
width that is green in growing thallus; (3) inner black circle; X#. 
1G. 12.—Actinomyces brasiliensis n. sp. on potato plug after 10 days; X1. 
PLATE IX 
Fic. 13.—Paraphyses, immature conidia, and conidiophores of Pellioniella 
macrospora n. Sp.; X500 
Fic. 14. Conidin like cells of hyphae of P. macrospora n. sp. from dis- 
eased tissue of Brazil nut; 500. 
Fic. 15.—Mature, immature, and transitional stages in development of 
conidia of P. macrespore n. SP-j ree 502. 
Fic. 16. idia of P. macrospora n. sp., planted 
in same hanging drop with mature conidia shown in figure 18; X 500. 
1G. 17.—Germination of mature conidia of P. macrospora n. sp.; germ 
tubes from one to two hours longer in emerging than those of immature conidia 
shown in figure 17; 500 
Fic. 18.—Hypha of P. macrospora n. sp., showing most common type of 
cell; 500. 
Fic. 19.—Hypha of P. macrospora n. sp. from near pycnidium; X 500. 
Fic. 20.—Conidia-like cells of hyphae of P. macrospora n. sp., taken from 
culture in autoclaved rice; 500 
1G. 21.—Section of pycnidium of P. macrospora n. sp., enlarged about 
450 diameters. 
Fic. 22.—Hyphae of P. macrospora n. sp., showing two types of cells; 
PLATE X 
Fic. 23.—Conidia of Cephalosporium bertholletianum n. sp.; 
Fic. 24.—Hyphae, conleinece and spore masses ae re water 
drops, C. bertholletianum n. sp.; X 500. 
Fic. 25.—Germinating osnidta of C. bertholletianum n. sp., two hours after 
planting; X 500. 
Fic. 26.—Germinating conidia of C. bertholletianum n. sp., twenty hours 
after planting; X 500. 
