FLORA, 
NM3. 
Begenshurg. 21. Januar. 1851. 
Inhalt: orıs nar-ABHANDLUNG. Zanardini, Algae novae vol miaus 
eognitae in mari rubro a Pprtiero collectae, — zIrararur. Sonder, Flora 
Hamburgensis. — PERSONAL-NorIzen. Ratzeburg, Hartig. Wichura. Cesati, 
v. Mohl. Grisebach, — anzeicen. Verkauf des Voigt’schen Herbariums, 
Samen-Offerte von Mette in Quedlinburg. 
Algae novae vel minus cognitae in mari rubro a Portiero 
collectae. Auctore J. Zanardini.*) 
1. FPortieria coceinea nov. gen. 
Frons gelatinoso-membranacea anguste lineari-decomposite- pin- 
nata axi, centrali tabuloso-articulato percursa, ex duplici strato cellu- 
larum constituta, Cellulsee interiores sphericz tubum proxime eir- 
cumdantes majores inanes pluribus seriebus peripheriam versus 
magnitudine decrescentibus disposite, superficiales valde tenuiores 
eolorate in series filiformes horizontales conjunetz. Coceidia (P) 
hemispheerica in superficie versus apicem pinnularum insidentia, ver- 
taczformia, sporis minutissimis in glomerulos compacto-thyrsoideos 
aggregatis placenta centrali radiatim subflocculosa affıxis fareta, Te- 
traspors ignotm. 
Obs. Novum genus in memoriam infelicis colleetoris nominanpdum 
esse eredidi, Alga colore et forms elegantia inter pulchras pulcher- 
rima. Primo intuita a Plocamio coccineo non multum abludit, sed 
eito frondis structura et fructificatione satis superque distinguiter. 
2. Laurencia vaga nov. spec. 
L. fronde cartilaginea setacea inferne subdichotoma intricata, 
segmentis vage ramosis, ramis divaricatis inordinate approximatis, 
ramulis ramentaceis spiniformibus patentissimis ereberrime sparsis 
ad apicem tantum attenuatis majoribus minoribusque intermixtis. 
:*) Quum de algis in mari rubro a Gallico Portier nuper collectis disserte- 
‚x „Sionem magis absolutam iconibusque illustratam in Iucem edere aucterie it 
“ nimum sit, interen phrases diagnoseas nonnullarum specierum nexarım vel 
wine‘ cognitarım hic primum praemittuntur. . 
Flora 1851. 3, 8 
