844 



MANUAL OF DETERMINATIVE BACTERIOLOGY 



Appendix: The following genus was formerly placed near Thiopedia. Winograd- 

 sky, ]\ligula, E. F. Smith and others disregard this genus. A record is included here 

 because of its historic interest. 



Genus A. Lampropedia Schroeter. 



(Schroeter, in Cohn, Kryptog. Flora v. Schlesien, 3, 1, 1886, 151.) From Greek 

 lampros, bright and pedion, plane. 



Trevisan (I generi e le specie delle Batteriacee, 1889, 28) and DeToni and Trevisan 

 (in Saccardo, Sylloge Fungorum, 8, 1889, 1048) list as synonyms: Erythroconis Oer- 

 sted, Xaturhistorisk Tidsskrift, 2, 1840, 555; in part, Pcdiococcus Lindner, Inaug. 

 Diss., Berlin, 1887, 97; T/i/opcd/a Winogradsky, Schwefelbacterien, Leipzig, 1888, 85. 



Cells united into tetrads, forming Hat, tubular masses, contain sulfur globules 

 and bacteriochlorophyll and yellow and red carotenoids. 



The type species is Lampropedia hyalina (Ehrenberg) Schroeter. 



1. Lampropedia hyalina (Ehrenberg) 

 Schroeter. (Guiiiuni hyaliauin Ehren- 

 berg, Abhandl. d. Berl. Akad., 1830; 

 Merisinopedia hyalina Kutzing, Species 

 Algarum, 1849; Sarcina hyalina Winter, 

 in Rabenhorst, Kryptogamen-Flora, 2 

 Aufl., 1, 1884, 51; Schroeter, in Cohn, 

 Kryptogram. Flora v. Schlesien, 3, U 

 1886, 151; Pediococcus hyalinus Trevisan, 

 I generi e le specie delle Batteriacee, 

 1889, 28; Micrococcus hyalinus Migula, 

 Syst. d. Bakt., 3, 1900, 195.) From 

 swamp water and decomposing materials 

 from sugar rehncries. 



2. Lampropedia reitenbachii (Caspary) 

 DeToni and Trevisan. (Merismopediatn 

 reitenbachii Caspary, Schriften d. phy- 

 sik. okon. Gesellsch. zu Konigsberg, 15, 

 1874, 104; Sarcina reitenbachii Winter, 

 in Rabenhorst, Kryptogamen-Flora, 2 

 Aufl., 1, 1884, 50; Pediococcus reichen- 

 bachii (sic) Trevisan, I generi e le specie 

 delle Batteriacee, 1889, 28; DeToni and 



Trevisan, in Saccardo, Sylloge Fungo- 

 rum, 8, 1889, 1048.) Found on rotting 

 water-plants. 



3. Lanipropcdia violacca (Breb.) De- 

 Toni and Trevisan. (A'jinenellum viola- 

 ceum Breb., quoted from DeToni and 

 Trevisan, in Saccardo, Sylloge Fungo- 

 rum, 8, 1889, 1049; Merismopediaviolacea 

 Kutzing, Species Algarum, 1849, 472; 

 Pcdiococcus violaceus Trevisan, I generi 

 e le specie delle Batteriacee, 1889, 28; 

 DeToni and Trevisan, loc. cit., 1048.) 

 From stagnant water. Common. 



4. Lampropedia ochracea (Metten- 

 heimer) DeToni and Trevisan. {Meris- 

 mopedia ochracea Mettenheimer, Ab- 

 handl. d. Senkemberg. naturforsch. 

 Gesellsch. in Frankf., 2, 1856-58, 41; 

 DeToni and Trevisan, in Saccardo, 

 Sylloge Fungorum, 8, 1889, 1049.) From 

 the yellowish slime from a well at Frank- 

 furt . 



Genus IIL Thiocapsa Winogradsky. 



(Schwefelbacterien, Leipzig, 1888, 84.) From Greek theion, sulfur and Latin 

 capsa, container, capsule. 



Cells spherical, occurring in families of irregularly arranged individuals held 

 together in a common slime capsule. The aggregates are spread out flat on the sub- 

 strate. Motility not observed. As the colony grows, the capsule bursts, and the 

 cells are spread apart. General morphology and development thus appears similar 

 to that in the genus Aphanocapsa among the blue-green algae. Contain bacterio- 

 chlorophyll and carotenoid pigments; capable of photosynthesis in the presence of 

 hydrogen sulfide. Under such conditions sulfur is stored in the form of globules in 



