512 u 
thallus gelatina sphaeriformi inclusus, 17) Aga- 
‚rum, thallas articulatus, fructitic. externa” nulla, 
Conf. corallina, prolifera etc. — ı8) Cerami- 
um, thallus septatus, sporangia adnata intus gru- 
mosa.— 19) Merteusia, thallus septatus, spo- 
vangia adnata, sporas distinctas coutincutia. — 
IL, Tremellaria, (Tremella Linn.) thellus 
gelatinam continens. 
ı) Nostochium, thallus globosus, subglo- 
bosus, informis ; sporidia fosiformia intra gelan- 
tinam,. Ist die Linkia Roth's. 2) Gonyela 
don, thallus eylindraceus, sporidia fustformia in- 
tra gelatinam. Hieher Gonf, fluriatilis, nodulo- 
sa, torulosa et. 3) Granularia nach Roth, 
thallus glohosus, sporidia globosa intra gelstinam. 
Dem Verf, unbekannt. 
ul. Ulva, thallus membranaceus expensus. 
1 Phylloma, thallus integer, fructif. ex- 
terna null. Hieher die meisten Ulven. 2) Tre- 
posa, thallus membranaceus, pertusus, fructifica- 
tio externa nulla. Ulva indica Linn. hieher 
3) Zonaria, thallus membranaceus, zonatus, sp0- 
wangia adnata subglobosa. Hieher Ulva Pavo- 
nia Link. 
IV. Fucus, thallus intus tubulis contortis et 
eompactis gelatinam exhibentibus refertus, 
ı) Codium, thallus pilis gelatinosis tectus 
sporongia aduata, intus crumosa? Fucus tü- 
mentosus L. 2) Chordazia, thallus nudus eylin- 
