Ser. Melanospeeme.s:. Earn. Bictyotece. 



Plate XXIX. 



HALISERIS PARDALIS, Harv. 



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

 membranaceous, midribbed. Fructification : spores collected in naked 

 sori, 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 a\?, the sea, 

 and crept?, endive. 



Radix stnposa. From plana, linearis, dichotoma, meu/branacea, costata. Fruct., 

 sporce in soros nudos collecta?, in utraque pagina frondis sessiles. Paranemata 

 in sorts propriis evoluta, articulata, clavata. 



Haliseris pardalis ; stipes short ; frond with rounded axils, the segments 

 very patent, linear, entire, repeatedly forked, somewhat wavy at the 

 margin, obtuse ; lamina delicately membranaceous, nerveless ; sori 

 disposed in recurved lines running obliquely from the midrib to the 



margin. 



r H. pardalis ; stipite brevi ; fronde dichotoma, sinuhus rotundatis, segmentis pa- 

 teutibus linearibus integerriiiiis repetite furcatis subundulatis obtusis ; lamina 

 tenui-membranacea enervi ; soris dispositis in tineas recurvas e costa ad mar- 

 ginem oblique proficiscentibus. 



Haliseris pardalis, Harv. in Trans. R. I. Acad. v. 22. p. 535 ; Harv. Jig. 

 Austr. Exsic. n. 86. 



Hab. Cast ashore from deep water. Fremantle, Western Australia, W. II. H., 

 G. Clifton, Esq. 



Geogr. Distr. As above. 



Descr. Root somewhat tuberous, densely clothed with brown, woolly hairs. Fronds 

 8-12 inches high, many times dichotomous, the principal stem, in old spe- 

 cimens, becoming more or less denuded of lamina, and frequently proliferous. 

 Stipes covered with woolly hairs, short. Segments fiabelliform, 4-6 times 

 forked ; the forks remarkably wide, with rounded axils ; apices very obtuse. 

 Lamina very thin and delicate, reticulated, without lateral veins ; the midrib 

 slender but well marked to the summits. Sori forming deflexed lines pro- 

 ceeding from the midrib to the margin, densely crowded, and giving a mot- 

 tled, pard-like appearance to the fertile frond. Spores with wide perispores. 

 Paranemata not observed. Colour a bright and rather yellowish olive, 

 sometimes inclining to green. Substance soft. The frond in drying adheres 

 to paper. 



A beautiful species of Haliseris, and distinctly characterized 



