Ptilota. CERAMIE.t. 03 



corlioalos in fila coiUiiUKiiitiir oloii^'ala ct ailiciilata, iii divcrsis 

 speciebiis paiiciora ct fero milla aiit ciim iclato pliiiima; iiitorme- 

 dinm qiioqiie piovenit stratiiin, cclliilis niajorihiis lotiiiicIato-anjTii- 

 latis conslitiitum, ciijus inter collulas, (ila eloiiQata (iecurrunt. Cel- 

 luloe liae majfn.ne in nonnullis speciel»ns (Pt. plumosa) totam internara 

 rroiulem fere occupant et a\om ipsiiin uiHliipir; cin;;uiil; iii aliis 

 celluUe niacna^ strali intermcdii fere nnlla' (aut cum a'tat;e niinori- 

 Lus iinplet;e?) et a\is filis olon{;atis clensissimis cin<;i(ur; in spe- 

 ciebus cleiise pinnutis, aiticuli a\iles pinnaruin, una cuin arliculo 

 tixili ipsius jiioamenti, in sectiono transversjili conspiciuntur, (piare 

 in plano axili colluke luagn» 3 — o in conspectura veniunt, lilis in- 

 viceni separat;e. 



ravcll;i3 in pinnula transformata sompcr, ni fallor, torminales, 

 nunc, pinniila transformafa brevissiiua, in pinnula superioris oidinis 

 laterales apparent {VI formosissiiua); involucro in Pt. elegante lere 

 nullo aut pinnellis paucis parum iiicurvis forraato, in plurimis regulari, 

 pinnellis circiter 5 — 7 aiubientibus incurvis, simplicibus integerrimis 

 aut serratis, aut ipsis pinnalificlis conslante. Nuclei 2-pliiresve in- 

 tra involucrum; singuli intra sacculuiu byalinura gommiclia rotun- 

 dato-angulata pluriiua foventes. SpIioGrospor.-e in pinnulis plus mi- 

 nus transforiualis, nempe abbreviatis monosipboniis et articulatis, 

 simplicibus aut decomposilis, evolutK; in simplicibus subsolilari;e 

 ex articulo terminali, in decompositis plurimae ex articulo pinnaruiu 

 solitario aut tcrminali forraatoe; splia3rospor;ie vero in Iiis nunc 

 pauciores disticIuT, nunc evolutione ramellorum pinnulam undique 

 ambientiuiu ot demum fertilium densissime aggregatoe; singula) in- 

 tra perisporium spba^ricum nucleum triangule quadri-divisum fo- 

 ventes. 



Genus cximle naturale jam in Synopsi Algarum Scandinavi;Te 

 al> Agardbio constitutum et a posteris oinnibus receptuin; quale 

 autem tunc liinitalum, spociera unicam lieterogeneara includens. 

 Siibr (Beitr. zur AJgenkund. Flora 1836, /. p. 29) oiunium pri- 

 mus diversitatem fructificalionis in diversis speciebus indicavit, et 

 in duas sectiones genus dividendum monstravit, Iias vero sectiones 

 non rite limitavit. Kutzing in Pliycologia dein genus (|Uod(lara 

 Carpobl(q)liaiis instituit, ciii formas Pt. naccid;c Auct, adnumera- 

 vit, ipsain vero plantam typicain rurneri l'lilota3 speciem exislima- 

 vit. IIoc in Speciebtis Algarum emondavit, scd boc loco ipsuin PtiloUo 

 genus in genera 3 dissolvit, qiuc structuraj diirerentiis diversa pra3- 

 dicavit. Structura3 diirerentias adessc non neganduiu cst; omnes 



