98 Ceramie^. Pidota. 



fore falcata, omnia inlegerrima cellulosa; costa in exsiccata quandoquidem 

 conspicua, nusquam nuda. Sphaprosporarum fila ad suporiorem marginem 

 pinnulse inchoantia, mox circumcirca evoluta et glomendum oblongiim con- 

 stituentia, simili modo ac in proximis sphaBrosporas gerenlia. 



Harveyana descriptio ita Itcne in nostram speciem quadrat, ut de 

 identitate utriusque plantcC nulla nobis restent dubia. Suae. plantae atta- 

 men tribuit folia lanceolata, quum in nostra potius ovato-lanceolala sunt. 



6. Pt. Asplemoides (Turn. Hisl. tab. 62) frondis dccomposito- 



pinnatiie pinnis in raciiide ancipite alata oppositis in.Tqnalibiis, 

 iina indivisa subinconspiciie sorrata, altera pinnafiparlita sa?pe 

 obsolela, repetita, pinncllis a basi jatiore ianceolatis cellulosis, 

 fruc(il)us supra axillas secus marpinem ulrumque seriatis, sphtTe- 

 rosporis in olomerulum rotundatum congeslis, faveilis involu- 

 cratis, involucri ramis pinnatisectis articulatis. 



Fucus Asplenioides Turn. l. c. Esp. Fuc. lab. 147. 

 Ptilota Asplenioides Ag. Sp. Alg. I. p. 387. Sijst. p. 195. 

 lihodocallis Asplenioides Kiilz. sp. Alg. p. 071. 



Ilab. in conchis etc. Oceani arctici ad ostia Lenoe!; in pacifico 

 ad Kamtschatkam (Chamisso! Ilorner! Liitke!) 



Frons pedalis, lineam fere lata, decomposito-pinnata, pinnis revera 

 oppositis, una nempe folio indiviso, alt.era ramo plus minus evoluto con- 

 stitutis; ramo autem srepe obsoleto, folid in rachide alterna et 2—3 lineas 

 distantia adparent. Folia aliquando 3lineas longa ct fere lineam lata, in 

 superiore partc lanceolata, basi attenuata, margine parum conspicue ser- 

 rata, inferiora a basi latiore lanceolato-attenuata, margine obsoletissime 

 crenulato, scnilia patentia, juvenilia incurva. Rami foliis oppositi sae- 

 pissime obsoleti; supra axillas vero proveniunt alii, 2 — 3 seriati, quorum 

 infimus sa;pe accrescit, nunc omnes transformantur et fructiferi eva- 

 dunt. Ramelli fructiferi vero etiam interiore margine fohorum evolvun- 

 tur, unde fruclus supra axillas utroque sinuum margine seriati conspici- 

 luitur. Glomeruli sphaerosporarum fere sphaerici, tilis in pinnula circum- 

 circa evohilis, articulatis monosiphoniis incurvis pectinatim pinnatis con- 

 stituti; sphacrosporis ex terminalibus arliculis filorum transformatis. l-^a- 

 vcllce eodem modo sitcE, intra involucrum plures; rami involucri pinnati- 

 fidi, rachide cellulosa, pinnis articulatis monosiphoniis. Chartae non bene 

 adhaeret. Color in speciminii)us nostris ssepe virescens, nunc pulchre 

 carneo-purpureus. 



7. Pt. t)ENSA (Ag. Sp. Alg. I. p. 387) frondis dccomposito-pinnata? 



|)innis in racliido compressa-ancipite opposilis inac(jualii)us, una 

 indivisa lancoolato-falcata extrorsum serrata, altera composita 

 sfcpe abljreviata repelila, pinnellis incurvis extrorsum divarica- 



