Ser. Rhodosperme^. Earn. Rhodomelacece. 



Plate CLXXIIT. 



DASYA FEREDAY^, Harv. 



Gen. Chae. Frond filiform or compressed, dendroid ; stem and branches 

 coated with small, polygonal cells (rarely articulated, and many-tubed) ; 

 the axis articulate, composed of several radiating cells surrounding 

 a central cavity; ramelli articulated, one-tubed. Fnictifcation : 1, 

 ovate or urceolate cermnidia ; 2, lanceolate stichidia, attached to the 

 ramelli, and containing triangularly-parted tetraspores in transverse 

 rows. — Dasya [Ag.), from 8aav<;, hairy. 



Frons Jiliforwds v. compressa, dendroidea. Caulis ramique majores strata cel- 

 lularum corticati (raro pellucide articulati), ramellls monosip/ioniis ohsessi ; 

 axis articidatus, ex cellidis ply.ribiis radiantibus tuhum ce.ntralem ciugentibus 

 formatus. Fruct. : 1, cei'amidia ovata v. iirceolata ; '2, stichidia lanceolata, 

 ex ramellis enata, tetrasporas transversim ordinatas foventia. 



Dasya Feredaya. ; stem very long, glabrous, opaque, cartilaginous, decom- 

 poundly much branched; lateral branches virgate, slender, directed 

 towards all sides, repeatedly divided alternately; smaller branches 

 either virgate or divided, attenuated, ramelliferous ; ramelli rosy, mo- 

 nosiphonous, patent or squarrose, crowded at the apices, dicliotomo- 

 multitid, with patent axils and attenuated apices ; articulations of the 

 ramelli 4-6 times as long as broad ; stichidia linear, suddenly acumi- 

 nate; ceramidia unknown. 



D. Feredayse ; caule elato glabra opaco cartilagineo decomposite ramosissimo ; 

 ramis lateralibus virgatis graciUbus quaquaversis itermn et iterum alterne 

 divisis, minoribits nunc virgatis simplicibus uunc ramosis atfenuatis ramelUfe- 

 ris ; ramellis roseis monosiphoniis undique insertis patentibus v. squarrosis ad 

 apices densioribus diclwtomo-multifidis axillis patentibus apice attennatis, ar- 

 ticulis ramellorMm diametro 4i-Q-plo longioribus ; stichidiis linearibus apice 

 cuspidatis ; ceramidiis ? 



Dasya Feredayae, Harv. Alg. Austr. Exsic. n. 220. Ha7-v. in Hook. Ft. Tasm. 

 V. 2. p. 303. 



Hab. Georgetown, Tasmania, M7'S. Fereday, W. H. H., Gunn, etc. 



Geogr. Distr. Tasmania. 



Descr. Root a small disc. Stem one, two, or more feet long, a line in diameter 

 below, attenuated upwards, simple or forked or decompound, glabrous and 

 quite opaque, set throughout with lateral branches. Lateral (primary) 

 branches 10-1.2 inches long, opaque like the stem, tapering to the base, and 

 very slender at their insertion, attenuated to the point, repeatc^dly divided 

 alternately. Ultimate branchlets scattered, not pinnately arranged, \-\\ 

 inch long, setaceous, ramelliferous. Ramelli inserted on all sides, 1-1^ lines 



