MONOGRAPHIE DES OSCILLARIÉES. 



331 



II. PoRPHYROSIPHON, Kutzillg 



Tabulœ phycolog., II, p. 7, tab. 27, fig. I, 1850-1852. 



Scytonema, Lyngbya spec. 



Fila simplicia. Vaginae purpureae aut persicinae. Tricho- 

 mata intra vaginam solitaria ; cellula apicalis haud capitata. 



I. P. JXotarisii Kùtzing 



Tabulœ phycolog., H, p. 7, tab. 27, fig. I, 1850-1852; e specirn. authent. in 

 herb. Thuret ! — Gomont, Essai de classification des Nostocacées homocystées in 

 Morot, Journal de Botanique, IV, p. 353. 



Scytonema Notarisii Meneghini in Kûtzing, Species Algar., p. 307, 1849. — 

 Rabenhorst, Flora eur. Algar., II, p. 251. 



Scytonema Perrottetii Montagne, Sylloge, p. 466, 1856; e specim. authent. in 

 herb. Montagne! 



Scytonema sanguineum Cesati in Rabenhorst, Algen, n° 533!, 1856. 



Scytonema peguanum Martens, List of Algse collect. by Kurz in Burma, in Pro- 

 ceedings of Asiatic Society of Bengal, p. 462, 1871; Rabenhorst, Algen, n° 2341 ! 



Scytonema fuscum Zellerin Kurz, Algœ collect. in Arracan, m. Journal of Asiatic 

 Society of Bengal, XLII, pars II, p. 182, 1873; Rabenhorst, Algen, n° 2342! 



Scytonema varium Martens in Rabenhorst, Algen, n° 2340!, 1873. 



Lyngbya Perrottetii Rornet, in Bornet et Thuret, Notes algologiques, fasc. II r 

 p. 149 et 154, 1880; e specim. authent. in herb. Thuret! 



Scytonema K^rnbachii Hennings, Algse novo-guineenses in Engler Botan. Jahr 

 bûch., Bnd., XV, Heft I, Beiblatt, p. 8, 1892; e specim. ab auct. misso ! 



Planche XII, fig. 1 et 2. 



Stratum expansum, tomentosum, fusco-purpureum. Fila 

 varie curvaia et dense intricala. Vaginae purpureae, saepe 

 apice hyalinae , nonnunquam stratis discoloribus , internis 

 coloratis, externis hyalinis, formatai, firmae, de mu m cras- 

 sissimae et valde lamellosae, apice acuminatae et fîbrillosae, 

 chlorozincico iodurato caerulescentes. Triehomaia aerugi- 

 nosa, vulgo ad genicula constricta, 8 p ad 19 ^ crassa; 

 articuli diametro trichomatis subaequilongi vel eo ad triplo 

 breviores, 4,5 (/. ad 12 p longi, protoplasmate granuloso 

 farcli; cellula apicalis atlenuato-obtusa (v. s.). 



Hab. terram nudam, prata et truncos arborum Iialiae 

 septentrionalis prope lacum Verbanum (de Notaris in herb. 

 Thuret!) et Vercellas (Cesati in Rabenhorst, Algen !), lndiae 

 (Bélanger in herbier Bory!, Kurz in Rabenhorst, Algen!), 

 insulse Ceylan (Ferguson in herb. Thuret !), Abyssiniae 



