32 Structure and Classification of Micro-organisms 



TABLE II. 



X. Eumycetes (ev good, MW"?TOS fungus). The true fungi: plants without chlorophyl. 

 Class i. Phycomycetes (<t>vKos seaweed), alga-like fungi. 

 Order i. Zygomycetes. 



Sub-order Mucorineae. 

 Family Mucoraceae. 

 Genus Mucor. 

 Order 2. Oomycetes. 



Class 2. Hemiascomycetes. 

 Order i. Hemiascales. 



Family Saccharomycetaceae. 

 Genus Saccharomyces . 

 " Blastomyces (?). 



Class 3. Euascomycetes. 



Order i. Euascales (contains 45 families). 

 Family Aspergilloceae. 

 Genus Aspergillus. 

 " Penicillium. 



Fungi imperfecti. 

 This is a large supplementary 

 group, of imperfectly known 

 fungi not included in the 

 tabulation. 

 In it we find Oidium. 



Class 4. Laboulbeniomycetes. 

 Order i. Laboulbeniales. 



Class 5. Basidiomycetes. 

 Sub-class Hemibasidii. 



Order i. Hemibasidiales. 



Family Ustilaginaceae (smuts). 

 Sub-class Eubasidii. 



Order i. Protobasidiomycetes. 



Family Uredineineae (rusts). 

 Order 2. Autobasidiomycetes (mushrooms, toad-stools, etc.). 



No entirely satisfactory grouping of the bacteria themselves 

 has yet been achieved, the best characters to be used as 

 the basis of classification being undecided. The best system 

 for their provisional arrangement is probably that of Migula,* 

 or the modification of it suggested by F. D. Chester, f in 

 which the morphology, sporulation, and appendages of the 

 bacteria all enter as important features. 



CLASSIFICATION OF THE BACTERIA. 

 I. ORDER: EUBACTERIA (True Bacteria). 



A. SUB-ORDER: Haplobacteria (Lower Bacteria). 

 I. Family COCCACE;E. Cells globular, becoming slightly elongate 

 before division. Division in one, two, or three directions of 

 space. Formation of endospores very rare. 

 (A) Without flagella. 



1. Streptococcus. Division in one direction of space, producing 



chains like strings of beads. 



2. Micrococcus. Division in two directions of space, so that 



tetrads are often formed. 



3. Sarcina. Division in three directions of space, leading to the 



formation of bale-like packages. 



* "System der Bakterien," Jena, 1897-1900 (vols. I and II appearing 

 at different times). 



f "Preliminary Arrangement of the Species of the Genus Bacterium," 

 "Ninth Annual Report of the Delaware College Agricultural Experi- 

 ment Station," 1897, Newark, Delaware, U. S. A. 



