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'fecta sequiplana multoties repetit« mazximis didymis, inerdinatim et 
confertim dispositis, strato gelatinoso obvolutis, eompositus, cyslk 
phorus. Cystides spheerico-ellipticae, amplissime, e cellula protogenia 
phzenococcodea composite. — Sp: 1. Th. deusta (Coccochloris densta 
Menegh.). . 
18. Bichatia Turp. Thallus e cellulis protegeniis eryptocecee- 
deis, primitus spheericis demum vesiculeformibus, themnogenesi com- 
posita heterogenea zequiplana multiplicatis, inordinatim et confertim 
dispositis, strato gelatinoso obvolutis, compositus, — Spec. 143 
— 198. 
“19. Hassallia n. gen. Thallus e cellulis protogeniis eryptococ- 
eodeis spheerico-ellipticis, themnogenesi simpliei homogenea appen- 
dieulari, multiplicatis, inordinatim et confertim dispositis, strato ge- 
latinoso obvolutis, compositus. — Spec. 199-203. 
20. Palmogloea Kütz.: Thallus e cellulis protogehiis cellulas 
chromatogenias phanococcodeas liberas foventibus, vesiceformibas, 
‚inordinatim et laxe dispositis, strato gelatinose obvolutis, compositus, 
— Spec, 204—210. 
Trib. IV. Hydrurese Menegh. 
Thallus e cellulis matricibus numerosis liberis, in series lineares 
ordinatim dispositis, strato gelineo homogeneo obvolutis, compositus. 
Subitrib. 1. Hydrococceae. 
Thallus globosus. 
21. Actinococcus Kütz. Thallus gelatinosus, globosus, nudus- 
(id est pridermide destitutus), e cellulis protogeniis phaenococcodeis 
spherricis, themnogenesi simplici homogenea z»yuiplana hinc inde 
multiplicatis, laxe excentrice et radiatim ordinatis, strato gelatineso 
obvolutis, compositus. — Spee. 211. 
22. Entophysalis Kütz. 'Thallus cartilagineus, durus, globoso- . 
granulatus, peridermide obductus, e cellulis protogenlis erassis, ellip- 
ticis, cellulas secundarias homogeneas eryptococcodeas paucas spha- 
ricas foventibus, aretissime adpressis, subradiatim erdinatis, strate 
gelatinoso tenui obvolutis, compositus. — Spec. 212. 
23. Hudrococcus Kütz. Thallus cartilagineo-gelatinosus, darius- 
eulus, globoso-vesicafermis, peridermide ohduetus, e cellulis proto- 
geniis eryptoceceodeis sphaericis, arcte adpressis, seriatim ordinatis, 
strato gelatinoso obvolutis, compositus. — Spec. 215—216. 
Subtrib. 2. Euhydrureae. 
Thallus elongatus filifofuis. . 
2. Hyarurus Agardh. Thallus gelatinosns, elongatus, filifor- 
mis, ramosus, ramulis subulatis, peridermide tenuissima obdäctus, e 
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