1196 Rhodomele^. Basya. 



Frondes a stupa radicali sub-bulb.osa csespitose provenientes, 2—3 

 nnciales, simplices, raro in ]iinnas conformes singulas aut plures alter- 

 nas excrescentes, ambitu lineares aut subspathulatpe, a basi articulatec 

 et per totam longitudinem alterne pinnulatge. Pinnulfe ad geniculum 

 quodque secundum distiche exeuntes, inferiores breviores et firmiores 

 sesquilineam circiter longce, superiores (supra medium pinnpej longi- 

 ores 3—4 lineas Ionga% suprema' molliores ocellato-corifluentes, omnes 

 inferne polysiphoiiia^, dichotomo-piniiata', pinnellis secundi aut tertii 

 ordinis .jam monosiphoniis, supra axillas sub-rotundatas convergentes 

 fere fasciculatae, pinnellis terminalibus elongatis a basi longe acumi- 

 natis, leviter curvis. Articuli pinnarum sunt diametro circiter sequa- 

 les, superiores breviores, inferiores paulo longiores, sectione transver- 

 sali siphones 8 circa centralem latiorem monstrantes, corticalibus pau- 

 cis externe tectos" articuli pinnularum polysiphonii sunt diametro 

 breviores-, pinnellarum monosiphonii sunt diametro circiter sesquilon- 

 giores, ultimis tenuioribus 2-pIo longioribus. Stichidia in pinnulis 

 pauca, in pinnellis inferioribus singula, pedicello pluri-articulato fir- 

 miori polysiphonio sullulta, pinnellisque circumcirca stipata, lanceolato- 

 linearia, breviori acumine terminata, in nostris juniora 4-5-plo diame- 

 tro longiora, compactiora, saltem 3-pIici serie sphferosporas monstrantia. 



Utrum frons teretiuscula an leviter compressa sit, e sectione trans- 

 versali non certe eruitur. 



Species distinctissima. ramificationis normafereD. coccineam Bcmu- 

 lans, fronde tota articulata D. callithamnio propinquior, simplicitate 

 D. ocellatam revocans-, inter D. callithamnion et D. coccineam affini- 

 tate fere intermedia. 



18. D. MuELLERi (SoHd. mscr.) fronde a caule incrassato stuposo 

 dichotomo elongata compressa decomposito-pinnata, pinnis 

 superne ecorticatis penicillato-plumosis, ramuiis ad genicu- 

 lum quodque secundum subdistiche exeuntibus densissime 

 dichotomis penicillatis in ramellos patentes monosiphonios 

 solutis, demum stichidia lancoidea racemosa gerentibus, ar- 

 ticulis ramorum diametro longioribus 5 — 7-siphoniis, ramu- 

 lornm 2 — 4-plo longioribus. 



Dasya Muelleri Sond. mscr. Harv. Phyc. Austr. tah. XXXI! Fl. 

 Tasm. p. 303 ! 



Dasya plumigera Harv. Mar. Bot. of West. Austr. n:o 112 ! Austr. 

 Alg. n:o 208 (partim). 



Hab. in oceano australi ad oras Tasmanniee (Harvey!). 



Frondes a caule incrassato, pennam corvinam crasso, hirsuto et 

 stuposo, pluries dichotomo subgeminatim exeuntes, ipsee simplicius- 

 culse at per totam longitudinem, 4 pollicares vidi, dense alterne piii- 

 natee, pinnis ni fallor distiche exeuntibus, inferioribus et superioribus 



