OESTERAL snTKTEMATlC BACTtJilOUKiT 119 



c. HepfUicoe and Hphagnaceae, 17.93 (Luui^., Bpee i ta frfantamm e<L 1 j 



d. JAr^hene*, 1753 /^Liim6,, Species pUatafimi, ed. 1> 



e. Fungi: {,'re/lirt/dei, VitiUigiiude$ and Ga»ter»myeeiet, 1801 (Penofju, 



Syiwpeia Mfethodica Funi^omm) 



f. /'ttn^' cael^i, 1^521-32 ''Fries, Systema Mjcolog^eam) 



g. Algae, 1753 (Linu^., Species plantanun edL 1) 



KzcfrptioDs: Notiloeaceae hrnnocyiteatf 1^(02-98 (Gomont, Nostoeaeeaehomo- 

 cynUae,; NotUtcaceae heUrocysileae, 1S86 CBoraet and FUUiaolt, 3ro»- 

 loTMce^ie heteroey$teae); De^tmidiaceae, 1S48 (R^fs, British Demudiaeeae) ; 

 Oedogordaeeae, 1900 (Him, Monographie and leonographie der 

 Oedogoniaceen ji 

 h. Myzomycdefi, 1753 'Xinn^., G«iera plantamm, ed. 1) 

 It is agreed to associate genera, the names of whieh appear in the hrst edition 

 of iSpecies Flantamm of Linn^ with the descriptions iihieh he has given in his 

 Genera Plantanun, ed. 5 (1754). 



Comment. A footnote to this sutide iji the Proceednigs of the 

 Bnjfjsels Ckmgrese in 1910 states, "The points of departure for the 

 nomenclature of the following groups: Schizr/myc^ie^ (Bacteria); Schiz- 

 f/jjhycf/ie (excl. Xoiitocaceae); Flagellalae (inch DtrioflageUatae) and 

 Ba/dllarryiceae (Diatomaceae) are reserved for the Congress of 

 London in 1915." This Congress was postponed because of the 

 interruption by the European War. Tliere Ls therefore no authori- 

 tative starting point for Vmcterial nomenclature at the present time. 

 At this Congress in Brussels Vuillemin proposed that 1753 be adopted 

 as the point of departure. Klebahn suggested that the work of F. 

 Cohn C 1870-76, Untersuchungen uber Bakterien) con.«tituted a more 

 suitable point of departure. This was approved bj- Engler. Magnus 

 contended that much work of systematic value had been accomplished 

 before 1870 and proposed that the pubh cations of Ehrenbei^ (certainly 

 a misprint) in 1786 should be the starting point. Vuillemin contended 

 that if a date subsequent to 1753 l>e taken, it might well be 1910. The 

 whole matter was finally deferred to the next Congress as noted above. 



In preparation for this Congress Vuillemin ri913; published a paper 

 in which ho discussed bacterial classification and nomenclature. He 

 concluded that the best thing to do is to determine which generic names 

 are valid, prepare such a list, publish the names as genera conservanda 

 and date all bacterial classification from 1915 when the list was to have 

 IjfifiU adopted by the Congress. A study of Vuillemin's paper despite 

 his criticism of bacteriologists as taxonomists shows that he himself 

 does not formulate tenable bases for differentiation of genera and his 

 reason for choosing certain generic names and abandoning others vi-ill 

 scarcely withstand critical analysis. 



