Ser. Rhodospermk,15:. Fam. WraiigeliacefR. 



Plate CCXXXIV. 

 WRANGELIA PRINCEPS, Haw. 



Gen. Char, //'o^^r,? filiform, decompound, articulated, one-tubed ; the inter- 

 nodcs naked or coated with minute cellules; the nodes clothed with 

 opposite or whorlcd articulated ranielli. Fructification : 1, cystocarps 

 terminating short branches, invclucrated by the uppermost whorled 

 raraelli, and consisting of tufts of pear-shaped pedicellate spores and 

 slender paranemata ; 2, naked, triangularly parted tetraspores, borne 

 on the sides of the whorled ramelli.— 'Wrangelia (4^.), in honour 

 of Baron v. Wrangel, a Swedish naturalist. 



Trons fiUformh, decomposita, articidata, monosipJwnia, nuda v. cellulis cortlcata, 

 verticdlis ramellornm ad genicida onusta. Friict. : 1, cystocarpia ramos 

 terminantia, ra)iieHls supremis involucrata, fascicuUs numerosis sporariim 

 pyriformiiim pedlcellatarum et paranematibus tenuibus coustantia ; 2, ietra- 

 sporce nudce, triangide dlvisa, ad ramellos sessiles. 



Wrangelia Princeps ; frond elongate, very robust, corticated throughout, 

 gelatinous and soft, decompound-pinnate; pinnse virgate, lanceolate 

 in outline, closely pinnate or bipinnate, the pinnules opposite but very 

 unequal, or by abortion alternate; nodes of the branches, pinnte, and 

 pinnules whorled with byssoid ramelli; ramelli forked or dichoto- 

 mous, cylindrical, their articulations many times longer than broad; 

 apices blunt; cystocarps terminating short pinnules; tetraspores near 

 the base of the ramelli. 



W. Princeps ; fronde elongnta crassa corticata gelatinosa mollissima decomposito- 

 pinnata ; pinnis virgatls iu ambitii lanceolatis crebre pintmlatis bi-piunnla- 

 iisve ; pinnulis oppositis valde inccqualibus v. abortione alternis ; geniculls 

 ramorum, pinnarum, pinnularmnque ramellis byssoideis verticellatis ; rameltis 

 dichotomic, cylindraceis, eoruni articulis diametro mtdtoties longioribus ; api- 

 cibus ohtusis ; cystocarpiis pinnutas coronanlibus ; tetrasporis ad ramellos 

 sessilibiis. 



Wrangelia Princeps, Ilarv. Alg. Austr. Exsic. n. 257. 



Hab. At Port Fairy, Port Philip Heads, and Western Port, Victoria, 

 W. H. H. Garden Island, Western Australia, G. Clifton, n. 23, 

 Aug. 1856. 



Geogr. Distr. Western and sonthern shores of Australia. 



Descr. Root a disc. Frond 12-18 incbes to 2 feet in height, closely deconi- 

 pound-piiniate and feathery. iil,em and main branches 1-2 lines in diameter, 

 somotinies nearly 3 lines, set throughout with lateral, virgate piiniir, 4-8 

 inciies in length, and of a lanceolate outline. Puina 2-4- lines apart, oppo- 



