272 



35. Hedeoiiia pulegioides L. 



36. Lycopus nibellus ^loeucli. 



37. Mentha piperita L. 



38. Miinulus alatus Soland. 



39. Plantago major L. 



40. Micrampelis lobata (Michx.) Greene. 



41. Lactuca Scariola L. 



42. Lactuca Canadeusis L. 



43. Ambrosia trifida L. 



44. Xanthium strumarium L. 



45. Vernonica sp . 



46. Eupatorium perfoliatum L. 



47. Solidago Canadensis L. 



48. Brigeron Philadelphicus L. 



49. Bidens laevis (L.) B. S. P. 



50. Bidens frondosa L. 



The Germinative Power of the Conidia of Aspergillus 



Oryzj5. 



Mary F. Hiller. 



Former investigations of tlie mould, Aspergillus orj-zae, have resulted 

 in many practical suggestions which have determined this mould to be 

 of interest to the commercial as well as to the scientific public. 



In 1876 Ahlburg, the first investigator of the mould, described the 

 fungus and named it Eurotium oryzae. Colin, in 1883, in his study of 

 moulds as industrial factors, called it Aspergillus oryzae. Biisgen, in 1883, 

 gave the first complete description of this mould, and in 1893 Wehmer 

 attempted a structural study. From this time many investigators were 

 at work in many different laboratories working out the life history of the 

 fungus. It was Takamine, a Japanese chemist, who introduced Asper- 

 gillus oryzae into the laboratories of this countiy. 



The careful experiments of many investigators, among whom are Jor- 

 gensen, Hansen, Klocher, also Atkinson and Hoffman, who have treated 

 it from the industi'ial standpoint, have resulted in suggesting for this 

 mould many interesting properties, such as the claims that the mycelium. 



