677 



varicaiis , extrorsam pectinatis bipectinatisve (parte nnda rachim 

 spectaute), divisionibas ultimis rectangnlatim divaricatis , snbalatia, 

 subacutis, articulis ramulorum diametro sesqai longioribos; tetraapo^ 

 ris tripartitis, sessilibus, ad ramnlos ultimas singulis pluribusve, 

 Goldkiiste, Californien. 



Calliihamnion squarrulosum Harv. ; fronde setacea, disticha; 

 canle percurrente ramisque majoribus basin versus venoso , ubique 

 evidenter articulato, rautis lateralibus, flexnosis, alternis, inferne nu- 

 ^is aut ramulis paacis, squarrosis, supra medium alternatim decom- 

 positis; ramis secundariis inaequilongis, patentissimis , laxe obsitis 

 famulis alternis, simplicibus, bifidis aut pinnulatis, divaricatis, obtu- 

 sis; articulis diametro 5 — 5p!o longioribus , cellularum parietibus 

 crassis, endochromio angusto. — Goldkiiste, Californien. 



Calliihamnion Vieiziae Hooper.; frondibus capillaribus, basin 

 versus pellucide articulatis, inferne a caule percurrente, distiche pin- 

 nato venosis; ramis alternis, simplicibus, in quolibet uodo pinnulis 

 brevibus , alternis, subsimplicibus aut pinnato dichotomis obsitis; 

 saepe ramulorum fasciculo denso terminatis; rachidibus ilexuosis; 



articulis caulis 6— Splo , rachidum 3 — 4pIo, ramulorum 8— lOplo dia- 

 inetro longioribus; apicibns subattennatis, obtusis vel subacutis; tetra- 

 sporis ellipticis, tripartitis, in ramulis snmmis solitariis. — Greenport. 

 CallUhamnion Americanum Harv.; filis elongatis, capillaribus, 

 soMnde alternatim decompositis; arete et dense aut snbdistanter 

 ramosis, plumosis, ramulis in quovi nodo geminatis, oppositis v. se- 

 candis; caulis articulis inferioribus diametro 8 — lOplo, ramulorum 

 ^— 6pIo longioribus ; tetrasporis ellipticis, cruciatis, sessilibus; fa- 

 ^elHs in ramis superiorlbus geminis. (Tab. XXXVI. A.) — Prinz 

 Eduard's Insel; Halifax; Boston; Lynn; Portsmouth; New Bedford; 



New York- Bay. 



Wurdemannia (nov. gen. incertae sedis an Gelidiac. ?) Frons 

 ^liformis, teres, irregulariter ramosa, e tribus stratis composita: me- 

 t^ullare e cellulis nomerosis, exiguis, cylindricis, seriatis, in fila sub- 

 P^fallela, dense fasciculata, longitudinalia dispositis; medium e cel- 

 ^qUb oblongis, longitudinalibus, peripheriam versus sensim breviori- 

 I^us; periphericum e cellulis minutis, verticalibus, uniserialibus. Con- 

 t'^ptacula (ignota,) Tetrasporae oblongae, zonatae, cellulis periphe- 

 ^'cis apicis ramornm incrassatae immersis. 



•«^. setacea Harv.; fronde capiUari, dense cespitosa, leviter ra- 

 osa, snbdichotoma; ramis simplicibus, nudis, divaricatis, apicibna 

 Musig. tetrasporis zonatis, apicibus incrassatis, clavatis, aut ramulis 

 *^ftvati8, apicalibas, racemosis inelosia. ~ Westkuste, hiiafig« 



