Ser. MELANOSPEiiMEiE. Fam. Fucacea. 



Plate CXXXIX. 



CYSTOPHYLLUM MURICATUM, /. J^. 



Gen. Char. Root scutate. Frond pinnate or dichotomous, dendroid^ with 

 a distinct stem, branches, and ramuliform leaves. Vesicles sohtary or 

 seriated, formed in the substance of the leaf, below its summit. Re- 

 ce]}tacles pod-like, torulose or moniliform, formed from the terminal 

 leaves. Scajihidia polygamous. Spores obovoid. — Cystophyllum 

 [J. Ag.), from KvaTi<i, a bladder, and (f)vX\ov, a leaf. 



Radix scutata. Frons pinnatim v. dichotome raniosa, dendroidea, caiile propria, 

 ramls foliisfiue ranmllformibus donuta. Vesicidce soUtarice v. seriatcB in folio 

 infra apicem inflatcB. Receptacida siliqticBformia, torulosa v. moniUformia, 

 apice foliolorum evoluta. ScapJddia polygama. Sporce obovoidece. 



Cystophyllum muricatum ; stem short, muricate, multifid ; subradical 

 leaves broadly linear, entire, midribbed; fronds very long, slender, 

 filiform, rough with gland-like ciha, pinnately much branched; branches 

 spreading every way, irregularly inserted ; pinnate or bi-tripinnate ; 

 vesicles solitary or 2-3 together, separated by filiform portions of the 

 leaf-ramulus, oVal; receptacles cylindrical-fusiform, subracemose. 



C. muricatum ; caule brevi muricato midti-ramoso ; foliis subradicalibus lato- 

 linearibus integris costatis ; frondibus longissimis fiUformibus glanduloso- 

 nmrictdatis pinnato-ramosissimis ; ramis undique egredientibns vagis 'pinnatis 

 bipinnatisve ; vesiculis solitariis v. scepe ternis sejunctis ovalibiis ; receptaculis 

 cylindraceo-fusiformibus subraceniods. 



Cystophyllum muricatum, /. Ag. Sp. Alg. v. 1. p. 231. Harv. Alg. Austr. 

 Exsic. n. 32. 



SiROPHYSALls muricata, Kidz. Fhyc. Gen. p. 368; Sp. Alg. p. 602. 



Cystoseira muricata, Ag. Sp. v. 1. p. 66 ; Syst. p. 285. 



Cystoseira trinodis, Ag. Ic. t. 12 {nee Sp. Alg.). Sond. Preiss. v. 2. p. 159. 



Fucus muricatus. Turn. Hisl. t. 112. 



Hab. Western Australia, Preiss. King George's Sound to Port Jackson, 

 in various places, }F. H. H. Port Phihp, Dr. Mueller. 



Geogr. Distr. Indian Ocean. West, south, and east coasts of New Holland, 

 generally in bays or harbours. 



Descr. Stem 1-3 inches long, 1-2 lines in diameter, densely muricated, bearing 

 many lateral or terminal branches; some of them short, producing a few 

 simple, linear, flat, midribbed leaves ; others long, heaxing fronds. Fronds 



