518 
‚ Teib, IX, Leptomiteae Ag. (System. Algar. p. XXI.) 
Trib. X.. Oscillariese Bory (in Dict. class. d’bist. nat. I. p. 593.) 
Trib. XI. Leptothricese Ktz. (Phycol. gener. p. 197.) , 
Trib. XII. Limnochlideae Ktz. (Phycol. gener. p. 203.) 
Trib. XIII. Nostoceae Trevis. (Att. IV. Riun. Ital. p. 335.) 
- Suhtrib, I. Anabaeneae* . 
Thallus indeterminalus, peridermide destitulus, e filis strato gelineo 
gelalinoso obvolulis composilus. 
- .. 2. Hormospora Bröbiss., 2. Nodularia Mertens, 3. Spermo- 
sira Ktz., 4. Anabsena Bory 1821, Sphaerozyga Ag. 1827, Belonia 
Csrmich., Monormia Berkel!, Trichormus Allman, CÜylindro- 
spermum Ktz., Belonnema Trevis. 
‘Subtrib. II, Eunostoceae.* 
. Thailus determinatus, peridermide obductus, e filis strato gelineo 
 gelatinoso obvolulis composilus. 
5. Nostoe Vauch., 6. Hormesiphon Ktz. 
Trib, XIV. Scytonemeae Ktz. (Phycol. gener. p. 213.) 
Trib. XV. ZLyngbyeae Duby (Botan. gall. HI. p. 986. 
- (Paraspermes Ktz. Phyeol. gener. p. 179.) 
Trib. XVI. Rioularieae Harv. (in Hooker's Brit. Flor. I. P. I. p. 391.) 
Subtrib. I. Mastichothriceae Ktz. (Phycol. gener. p. 231.) 
Subtrib. I. Zurivulariese* . 
(Rivulariee Ktz. (Phycol. gener. p. 235.) 
‚Divisio IE. -Confervinse Ktz. (Phycol. german. p. 156.) 
_ (Arthrotballe Trevis. Ast. IV. Riun. Ital. p. 335.) 
Trib. XVII. Bangieae Daby (Botan. gall, II. p. 985.) 
1. Gloeotila Ktz., 2. Alloegonium Ktz., 3. Hormidium Ktz., 4. 
Goniotrichum Ktz., Ceramicola Oerstedt, 5. Schizogonium Ktz., 
Pereursaria Bory, 6. Schizomeris-Ktz., 7. Bangia Lyngb., 8: 
Porphyrostromium.* (1) 
Trib. XVII, DUlothriceae Ktz. (Phycol. gener. p. 251.) 
Trib. XIX. Conferveae Bory, Ktz. (Phycol. gener. p. 253.) 
Frib. XX. Chlorotylieae.* P 
1. Chlorotylium Ktz. j 
Trib. XXI, Zygnemeae Reichenb., Duby (Botan. gall. 1. p. 975.) 
Trib. XXU. Hydrodietyeae Menegh. (in Spongia Com. di med. 
Sem. IV. p. 334 ) 
Subordo IV. Hymenothallae Trevis. (Att. IV. Riun. Ital. p. 335.) 
(Dermatoblastee Ktz. Phyeol. gener. p. 294.)* 
Trib. XXIII. UlveaeReichenb., Trev. (Prosp. della Fl. Eugan. p.50.) 
(1) Porphyrostromium Boryi,* (Porphyra Boryi Montagn., Bangia repens 
Zanard.) Thallus filaris teres, sensim superiori parte demum laminaris mo- 
nostromaticus .lineari-lanceolato -spathulatus: simplex: e cellulis protogeniis te- 
nuissimis (subinconspicuis), uniseriatis, cellulam chromatogeniam eryptococeodeam 
primitus eylindraceam demum themnogenesi perfecta aequiplana multoties repe- 
tita multiplicatam (cellulis themnn»genetis in stratum simpiex ordinatis) foventi- 
bus, compositus: peridermide gelinea crassa obduetus: purpureus: parasiticus. 
Multiplicatio per cellulas ehromatogenias. — Bangia differt thallo (semper) 
filari cylindraceo, cellulis themnogenetis in strafa transversalia parallella ampbi- 
geneta ordinatis. 
