246 



aq. dulc. exsicc, fasc. VI, 289 = Phormidium uncinatum nob. 

 Oscillatoria tenuis, var. sordida Desmazières, Pl. cryptog. de France^ série II, 

 no 539, 1858 = P liormidium subfuscum Kutzing cum Phormidio 

 uncinato nob, mixtum. 



— tennis^ var. sordi'ia de Notaris in E^^bario crittogam. itaL, n° 1334, 



1868 == Phormidium favosum nob. 



— tigrina Kutzing, Phycologia gertnan., p. 157, 1845; Tabidœ phycolog., 



I, p. 26, tab. 38, fig. IV ; Species A/gar., p. 237 = Bacteriacea. 



— tinctoria Crouan, Floride du Finistère, p. 113, 1867 = Phormidium 



tinctorium Kutzing. 



— torta Agardh, Algarum Décades, II, p. 22, 1813; Synopsis Alg. 



Scandin. p. 109 = Conferva contorta Agardh. 



— uncinata kgQ.vàh, Aufziihlung, etc. in Flora, X, p. 631, 1827. — Kutzing, 



Actien ; Algarum aq. dulc. Décades, XIII, n» 121 ; Tabulai phycolog., 

 I, p. 29, tab. 41, fig. V = Phormidium uncinatum nob. 



— uncinata, forma olivascens Hantzch in Rabenhorst, Algen, n» 925, 



1860 = Phormidium uticinatum nob. 



— uncinata, p rufa Kiitzing Algarum aq. dulc. Décades, XIIT, n» 122, 



1838 = Phormidium uncinatum nob. 



— urbica Bory, Dict. class. d'hist. nat., XII, p. 464, 1827 = Pho7'midium 



autumnale nob. (pro parte) , Phormidium subfuscum Kutzing (pro 

 parte), Phormidium uncinatum nob. (pro parte). 



— vaginata Vaucher, Histoire des Cojiferves d'eau douce, p. 200, pl. XV, 



fig. 13, 1803 = Microcoleus vaginatus nob. 



— vei'satilis Kutzing, Phycologia gemer., p. 184, 1843; Phycologio german., 



p. 157; Species Algar., p. 238; Tabulœ phycolog., I, p. 27, tab. 38, 

 fig. VI = Bacteriacea. 



— viridis Rabenhorst, Algen, n" 120, 1851 = Phormidium uncinatum 



nob. 



— Wrangelii Agardh, Algarum Décades, II, p. 28, 1813; Synopsis Algar. 



Scandin., p. 112 = Desmonema Wrangelii, Bornet et Flahault. 



— zostericola, Vahl Flora da7iica, pl. 1599, 1818. — Lyngbye, Tentamen 



Hydrophytologiœ danicse, p. 94, pl. 27, C = Calothrix confervicola 

 Agardh. 



XIV. — Arthrospira Stizenberger 



Spirulina und Arthrospira, in Hedwigia, I, p. 32, 1852. 

 Spirillum, Spirulina, Arthrospira spec. 



Trichomala cylindracea, evaginata, in spiram eximie re- 

 gularem plus minusve laxam contorta , apice a^.qualia aut 

 atienuata ; cellula apicalis superne rotundata ; calyptra 

 nulla. 



Planlae hydrophilse aut halophilae, nunquam terrestres. 



Specierum conspectus. 



Trichomala seruginea, in spiram laxam, diametro 9 (ji ad 15 

 œquantem contorta, 5 ad 8 p crassa ; anfractus 21 jjt. ad 31 (x inter 

 se distantes. i. A. Jenneri. 



