Ser. MELANOSPEEMEiE, Pam. Licti/otea. 



Plate CLXXX. 



HALISERIS MUELLERI, Sond. 



Gen. Char. Root coated with woolly hairs. Frond flat, linear, dichotomous, 

 membranaceous, midribbed. Fructification : spores collected in naked 

 sort, disposed in lines at each side of the midrib, and rising from 

 both surfaces of the frond. Paranemata separate from the sporiferous 

 sori, articulate, club-shaped. — Haliseris [Targ.), from aX?, the sea, 

 and aepa, endive. 



Radix stuposa. Frons plana, Imearis, dichotoma, meinbranacea, costata. Fruct., 

 sporcB in soros nudes collectce., in utraque pagina frondis sessiles. Paranemata 

 in soi'is propriis evoluta, articidata, clavnta. 



Haliseris Muelleri ; stipes elongate, terete ; frond dichotomous, with 

 rounded axils ; segments spreading, coriaceo-membranaceous, broadly 

 linear, very entire, repeatedly forked ; membrane nerveless ; sori very 

 large, forming a continuous cloud-like patch, covering the whole sur- 

 face. 



H. Muelleri; stipite longiusculo terete stuposo; fronde dichotoma, shmhus rotun- 

 datis, laciniis patentibus coriaceo-membranaceis lato-linearibus integerrimis 

 repetite firrcatis ; lamina enervi ; soris maximis paginam fere totam frondis oc- 

 cupantibus. 



Haliseris Muelleri, So7id. in Linn. v. 25. p. 665. Harv. Alg. Austr. Exsic. 

 n. 87. Fl. Tasm. v. 2. p. 290. 



Haliseris polypodioides, Harv. in Loud. Journ. v. 6.jo. 415 {excl. syn.). 



Hab. Fremantle, King George's Sound, and Cape Riche, Western Aus- 

 tralia, W. H. H. Coasts of southern Australia and Victoria, Dr. 

 Mueller, W. H. H., etc. Port Jackson, New South Wales, W. H. H. 

 Tasmania, R. Gumi, etc. 



Geogr. Distr. Very common on the western and southern coasts of New Hol- 

 land and in Tasmania. Eare on the east coast. 



Descr. Root conical, densely coated with entangled woolly fibres. Stipes vari- 

 able in length, in old fronds 2-3 inches long, simple or branched, covered 

 with woolly hairs, which also clothe the midrib in the lower half of the frond. 

 Frond 6 to 18 or 24 inches long, very much divided, either regularly dicho- 

 tomous ; or partly dichotomous, partly alternately branched by a suppression 

 of one of the forks, all the divisions patent, sometimes divaricate, with 

 wide sinuses between the lobes. The segments are an inch or somewhat 

 less in breadth, linear, flat, and quite entire at the edge, simple or forked, 

 long or short, either very blunt or subacute. The midrib is strongly marked 

 throughout, but there are no lateral veins or veinlets. The sori (of anthe- 



