Ser. Melanospermejs. Fam. Fucacea. 



Plate CLXXXIII. 



CYSTOPHORA GREYILLEI, J.J^. 



Gen. Chau. Booi scutate. Frond pinnately decompound, dendroid, with 

 a distinct stem, branches, and ramuHform leaves. Vesicles stipitate, 

 simple, rarely absent. Receptacles pod-like, torulose or mouiUform, 

 developed in the ramuh. 8caphidm hermaphrodite. Spores obovoid, 

 — Cystophora (/. Ag^, from kvcftl'^, a bladder, and (f)ope(o, to bear. 



Radix scutata. Frons pinnatim decomposita, dendroidea, caule propria, ramis 

 foliisqjie ramuUformibus donata. Vesiculce stipitatce, simplices, raro nidlce. 

 Receptacida siliqiKeformla, torulosa v. nodulosa, apice ramulorum evoluta. 

 Scaphidia hermaphrodita. 



Cystophora Grevillei; stem terete, decompound-pinnate; pinnse disti- 

 chous, furnished at base with alternate, obtuse tubercles (the stumps 

 of fallen pinnules) ; pinnules pinnate, the terminal ones changed into 

 long, ensiform, compressed receptacles ; vesicles spheroidal, about one 

 to each pinna. 



C. Grevillei ; caule tereti decomposito-pinnato ; pinnis disticMs hasi tuberculis 

 obtusis alternis miuutis ; pijinuUs pinnatis, ultimis in receptacida elongata 

 compressa enslfoi'mia abeuntibus ; vesiculis spharicis in pinna subsingulis. 



Cystophora Grevillei, /. Ag. Sp. Alg. v. 1. p. 245. Harv. Alg. Exsic. Austr. 

 n. 11. 



Cystoseira Grevillei, Ag. in Grev. Syn. p. 33. Sond. in Lehm. PI. Preiss. 

 V. 2. p. 160. 



Blossevillea Grevillei, Kictz. Sp. Alg. p. 629. 



Hab. Western Australia, Frazer, Preiss, W. H. H., etc. 



Geogr. Distr, West coast of Australia. 



Descr. Stem several feet long, 1^ Hue in diameter, terete, distichously much 

 branched in alternately pinnate order ; the branches 1-3 feet long, more or 

 less patent or reflexed at their insertion. Pinnce, or secondary branches, a 

 foot or more long, either very patent or erecto-patent at their insertion, 

 once or twice pinnately compound, denuded of rarauli in their lower half, 

 but alternately tuberculated with the stumps of the fallen ramuli ; these 

 tubercles are 1-3 lines apart on the younger, 6-8 lines apart on the older 

 branches. Pi^inules quite simple, subulate, 1-1|- inch long ; the terminal 

 ones transformed into receptacles. Vesicles few, one near the base of each 

 subdivision of the frond, 2-3 hues in diameter, either globose or oval. Re- 

 ceptacles lanceolate, l|-2 inches long, compressed, not torulose, with disti- 

 chous scaphidia, which either bear spores or antheridia. Colour a dark 

 brown-olive, becoming black when dry. Substance coriaceous. 



One of the larger, but not one of the handsomer, of the west- 



