42* 



Bab. Ad oras Eiiropae atlanticas nsque ad Norvegiam. 

 Ad insulas Falkland. 

 10, Pnnetorla lanceolate *. 



Phylliti$ lanceolate Kutz. 



ffab.. Marc mediterraneum* 



Subtribus II # Scytosiptaotieae *♦ 

 Char, ess, Dicliues. — Thalaroia a?i ipsa origine nuda; 

 asei monospori. — Thallus caulescens fistulosus vel cavns. 

 Fulcrum radical e nudum. 



Gen. IV. fBejto&lpHon Agardh (Dispos. Algar. Snec. 



1811). 



Char* Thallns canlesc*ns stipitatns vel sessilts, simplex 

 vel ramosns^ teres- vel compressns, fistitlosns vel eavus', con^ 

 tiunus, membranaceus. Fulcrum radicate digcoidenm, plerum- 

 qtie minrifsim, nudum. Tricbophyses rarissimae* — Structura 

 celluloso- fibrosa , arcta. Stratum corticate e cellulis mi nut is 

 $u bparalleJipipedis holococcodeis couilatum. Stratum medul- 

 lare e celfulis amplis angulato^rotimdatis inanibus mono- — 

 tetrastromaticis et c- fibris filainentosis interioribns panda la- 

 xlssiuiis ramosis anastomosantibus ienuissimis cylindricis arti- 

 culatis hyalinis composition. 



Thalamia definita, punctiformia vel sorifonnla, pleram- 

 que minuta, nnda, per omnem tballum inordinate spars a, ex 

 aseis simplicibns, ovato-pyriformibns, basi angnstatis^ mono- 

 sporis, plus minume radiantibus, parapbysibus simplicibus 

 clavatis articnlatis unmixtis, composite. — Gonopbyses nullae. 



Oedogoiiia in diversis iudividuis (nee in thalamiiferis) ofc* 

 venientia, solitaria vel irregnlariter approximates per omaem 

 thallnm inordinate spars a. 



%». Asperococcus Lamoor. (in Annal, dn Mus. XX. 

 1813). Encoelium Agardh (Spec, Algaivl. 1. 1821> Sl<- 



