Ser. Melanosperme/e. Fam. Fiicacea. 



Plate CXXXV. 



HORMOSIRA BANKSII, Dene. 



Gen. Chak. Root discoid. Frond without distinct organs, moniliform, 

 branched; the internodes inflated and fertile. 8pore-caintieH sunk in 

 the periphery of the vesicated internodes, dioecious. Spores linear- 

 pyriform, subsessile. Paranemata simple. — Hormosira {EndL), from 

 6pfio<;, a necklace, and aeipa, a chain. 



Radix discoidea. Frons, organis nullis discret'is, moniliformis, ramosa; inter- 

 nodiis iiijlaio-vesicatis, demumfertilibus. Scaplddia in peripherio vesiculariim 

 immersa, niimerosissima, dioica. Spores Uneari-pyrifoimes, subsessiles. Pa- 

 ranemata simplicia. 



Hormosira Banksii ; vesicated receptacles ovoid or obconical, wingless. 

 Bene. An. So. Nat. ser. 2. xvii. 330. Harv. in Hook. Fl. Tasm. v. 2. 

 p. 285. 

 H. Banksii ; receptaculis ovoideis ohconicisve teretibiis. 



Var. a. Ba7ihm ; frond divaricate, with patent branches and very wide angles ; 

 vesicles cuneate, depressed at the summit, the terminal ovoid. 



Hormosira Banksii, Bne. I.e. Endl. Srd Suppl. p. 30. /. Ag. Sp. Alg. v. 

 1. p. 198. Kiitz. Sp. Alg. p. 586. 



Cystoseira Banksii, Ag. Sp. Alg. v. 1. p. 60 ; Syst. p. 284. 



Fucus Banksii, Turn. Hist. t. 1. 



MoNiLiFORMiA Banksii, Bory, Coq. p. 134. 



Var. /3. Labillardieri ; frond very long, di-trichotomous, with narrower axils ; 

 vesicles ovoid, rounded at each end, the terminal ones sometimes cylindrical. 



Hormosira Billardieri, Mont. D'Urv. Voy. Pol. S/id, p. 62. /. Jg. Sp. Alg. 

 p. 199. Kiitz. Sp. Alg. p. 586. Fl. N. Zeal. v. 2. p. 215. 



MoNiLiFORMiA Labillardieri, Bory, Coq. p. 133. RicJi. Astrolabe, p. 18. 



Fucus monihformis, Labill. N. Holl. t. 262. 



Var. y. Sieberi ; frond short, dichotomous, fastigiate ; vesicles obconic, trun- 

 cate at the upper extremity, and either truncate or tapering at the lower ; 

 terminal ovoid. 



Hormosira Sieberi, Dene. I.e. Endl. Brd Sitppl. I.e. J. Ag. Sp. Alg. v. 1. 

 p. 199. Hook. Fl. N. Zeal. v. 2. p. 215. 



Hormosira obconica, Killz. Sp. Alg. p. 586. 



MoNiLiFORMiA Sieberi, Bory, Coq. p. 134. A. Rich. N. Zeal. v. 2. p. 139. 



