Ser. lluouosPEUME-K. Fam. Cermriiacea. 



Plate CCVI. A. 



CEPvAMIUM MINIATUM, Su/n-. 



Gen. Char. Frond filiform, clicliotomous or subpinnate, articulate; the 

 articulations partly or wholly coated with small, irregularly placed (not 

 seriated), coloured, polygonal cellules. Fructification: 1, sessile /a?;e^^^, 

 subtended by 2-4 iuvolucral ramuli ; 2, triangularly divided tetra- 

 sjjores, formed of some of the cortical cellules, more or less project- 

 ing from the surface. — Ceramium [Ljjngh!), from Kepajxtov, a pitcher ; 

 because the fruit is not pitcher-shaped. 

 Frons filiformis, dicJiotoma aut phmatlm ramosa, ariiculata ; articidis plus 

 minus celluUs mimdis polyhedris coloratis vagis (nee seriatis) corticata. Fruct.: 

 1, favellfe sessiles, ramulis 2-4 involucratce ; 3, tetraspora: morphosi cellu- 

 larmii corticaUumformat(S,plus miims extra stratum corticate prominenteSy tri- 

 angule divisa. 



Ceramium miniatum ; a primary creeping filament throws up minute, 

 scattered, erect fronds; fronds compressed, distichously sub-bipinnate ; 

 pinnse dichotomo-fastigiate, the terminal segments very short, tooth- 

 like ; articulations shorter than their diameter, rosy, all but the ulti- 

 mate ones with naked interspaces; tetraspores prominent, seriated 

 along the margin of the segments at each side. 



C. miniatum ; filo primario repente frondes minutas (semiiinciales) sparsas 

 erectas emittente ; fronde compressa distiche sub-bipinnata, piunis dic/iotomo- 

 fastigiatis ; segmentis terminaltbus hrevisshnis dentiformibus ; articulis diame- 

 tro brevioribus medio roseis, omnibus nisi supremis interstitiis nudis ; tetra- 

 sporis secus marginem segmentormn utriu(iue longitudinaliter seriatis. 



Ceramium miniatum, SuJtr. J. Ag. Sp. Alg. v. 2. p. 135. Harv. in Trans. 

 R. I.Acad. V. 22. p. 557. JIarv. Alg. Austr. Exsic. n. 466. 



Hab. Parasitic on Melanosperms. Fremantle, G. Clifton. On Dictyota 

 Kirnthii, at Rottnest Island, W. Australia. On Ecldonia radiata, at 

 Kiama, N. S. Wales, W. 11. IL 



Geogb. Distr. Coast of Peru, Suhr. West and east coasts of Australia. 



Descr. Primary filaments prostrate on the surface of other Al£^a>, subsimple, 

 creeping by means of small discs, and throwing up numerous, scattered, erect 

 fronds. Fronds about i— :} inch long, oblong, with a slightly llcxuous 

 rachis, distichously sub-bipimiate. Piinia alternate, more or less coiuj)ouud, 

 the upper ones dicliotomous, the lower Habelliform, all fastigiatc. Articu- 

 lations coated with cellules round tbe joints, pellucid in the middle, each 

 with a longitudinal sacculus or bag of endochrome; joints of the ramuli very 

 short, with a narrow band. Apices slightly hooked inwards. Fuvellce \\\ 

 pairs, oval, subterminal, subtended by 3-4 short ramuli. Tetraspores very 

 prominent, globose, arranged along opposite margins of the ramuli, in longi- 

 tudinal rows. Colour a bright purple. Substance soft, but not gelatinous. 

 in drying, the frond adheres to paper. 



