90 



Leptothrix tiburtina Co/m (in Leonh. Jahrb. 1864. p. 590.). L. 

 trichomatibus l Jaoo iU crassis, tenuissime moniliformibus, dense et crispe 

 contortis, stratum coeruleo - aerugineum lapidescens componentibus inter 

 Hypheothricem Naegelii in superficie Lapidis tiburtini (Travertin) recens 

 ad cataractas Anienis (Italiae) depositi. 



Subfamilia III. Oseillarieae. 



Trichomata (individua) sparsa, singula vel numerosissima in stratum 

 (subcaespitosum) indefinitum mucosum associata et saepissime radiantia, 

 plerumque laete colorata et plurimum odore nauseoso atque motu triplici 

 praedita, articulata, muco matricali vel vagina aperta inclusa. Articuli 

 brevicylindracei, fronte disciformes, plerumque punctis vel nodulis peri- 

 phericis ornati. 



De motu proprio conf. Fischer, Beitrage zur Kenntniss der No- 

 stochaceen p. 16. Nageli , Ortsbewegung der Pflanzenzelle in Beitriig. 

 zur wissenschaftl. Botanik. 2tes Heft. 1860. p. 88. 



HLHLIL Spirillillil Link. (1834): Trichomata articulata 

 spiraiia, motu proprio spirali praedita, in muco matricali achromatico 

 plus minus liquido nidulantia. Propagatio adhuc ignota. — Conf. 

 Fig. nostr. 22. 



Articuli specierum subtilissimarum saepius difficillime conspicui. 



De motu proprio conf. Ferd. Cohn in Nov. Act. Acad. Car. Leop. 

 Vol. XXIII. A. Braun in v. Mohl et v. Schlechtendal bot. Zeit. 

 1852. p. 395. Reinicke in s. Beitragen zur neuern Mikrosk. II. 

 p. 1—56. 



a. Trichomata crassiora, distincte articulata. 



Sp. Jenneri (Hassall) Ktz. (Tabul. I. T. 37. F. XI. Kabenh. 

 Alg. N. 159, 728 et 1150. Wartm. X. 37. Cohn in Nov. Act. XXIV. 

 1. T. XV. F. 12—14. Spirillum Jenneri Hassall Freshw. Alg. p. 277. 

 X. 1. T. LXXV. F. 5. Arthrospira Jenneri Stiz. in Hedwigia I. p. 32. 

 T. V.). Sp. trichomatibus plus minus elongatis , distincte articulatis, 

 anfractibus laxis, distantia '/im- '/w'" = 0,0008— 0,00093", articulis 

 diametro subaequaiibus ( '/r> brevioribus) , cytioplasmate pallide vel in- 

 tense et laete aerugineo - viridi. v. v. 



Diam. l lm*rJ/sn 4 " = 0,0003—0,00032". '/^oo'" in descriptione 

 Kiitzingiano, '/450 — , / : f7 ° / " a - c ^- Suringar indicatur. 



b. vaginata, filis subdistincte vaginatis. 



c. subrecta, forma anfractibus valdc extensis. 



