16 J. G. Agardh. 



IL Genera froiidihiis composifis h/sfnicfd, neinpe fjlis ciivd cuticuhnn entni- 

 pe-ntihus serus (■(UÜvs descendentihus, niidis auf rumeUosis, infernc pilus 

 minus sfiiposa. 



f SplKTrosporis friai/ff/iJc dirisin, sporas 4 foventihus. 



Favellis subtermiiuililnis iiivolucratis li. Spongoclonium. 



ff S2>Ji(i-'rosporifi 1//1 uierosas spioras fovri/t/i>i(s: 



(jcmiiiidiis lavcllif siiic ordine eonglobatis . . 15. Lophothamnion. 

 „ „ in fasciculos distiiictos 

 conjunctis 16. Aristothamnion. 



in. SppC'ics, qnrr 'nifer V(il]ilh(tintii(( rccepta', qitodd notas liahitiiuhs ila <di 

 aliis diverser, itt tifpos (iertrrieos jrroprios in iis suspieari Jieetd: parfiJms 

 a.vtein friietißetdionis ir/nofis ijuoad (iffinitates mihi dahier. 



1. Call, kaocatum ,/. An. Epier. p. 27. 



2. Call, australe J. Ar/. Epier. p. 21. 



ITaiir ad Ptcrocladiani liio.idani (|uasi ](arasiHcain di'|ircliriidi; in Spec. 

 Algaruni descriptam viddas. 



IV. Genera, ijaoriin/ Speeies infer Cai/ifliaiiniia oJiin reeeptee, J/odie ad alias 

 famUias revocanda riden far. 



1. ACKOCH^ETIUM. 



2. SpERM(yrnAMNioN. 



3. Lejollsia. 



4. Wrangelia stiiiARKULosA. 



1 Rhodochorton. 



Intor multa (lonora, (pia> Callithaniniis creavit NtTgeli, iioc poi'mansit a 

 plnrimis rocoptiini, ipianii|iiani cliavactcros hodi(> adlnie paruni ('(li^-nitos esse, eon- 

 fitei'i fas est. Piietcr splia'r()s|)(iras cniciatim divisas, (juas jam cliaracterem Ge- 

 neris considei-avit Na'o'eli, nihil liodicduni seimiis de partihus fructificationis. 

 Duas tantum speeies fTlh. Itolliii et lilt. ßorididum) Generi adniimel-avit N«- 

 geli. Creseendi modn ha' tiiiii ahas Callithamniorum formas, tum speeies, qu;p 

 forsan oninino alieiia' sunt, tatigunt. lliiir Genus ne(]ue quoad eharacteres, 

 neque quoad limites, hodie(hun ita eognitmn, ut de proxima aftinitate et liniiti- 

 biis certius statuere lieeat. 



