^ 



173 



+. 



»• 



\ 



laaceolcita, rarius oblonga, substipitata, mari;ine dentibus subulatls, 1 lin- 

 lon£;is, iipice intcrdum Lispinulosis ciliata. Color roseo-purpureus. Sphae- 

 rospoi^ae sphiimcae, triangulatim qiiadridivisae, in cellulis magnis, sub strato 

 penpherico sitis vel in interioribus nidulantes. Favellidia desunt An vera 



alymenia? 



3. Halynienia auf^frali.^? Sojid. froiKle cartilagineo- 



nienibranacea dichotoma inferne cylindraeea, ramis com- 

 pressis costatis iiltimis margiiic ciliato-deiitatis. 

 Ginannia australis Sond. 1. c- 



* Ad Novae HoIIandiae orain occidentalem- Herb. Preiss. No. 2556. 



Tri- vel quaJripollicaiis. Radix scutata. Frons inferne teres, lineam 

 fere crassa, mox dichotome divisa, rarais basi teretibiis, sensim in ramulos 

 compresso-planos, ^4 W"- latos^, dichotomos vel sparse ramosos abeuntes. 

 JRamuli costa media protninente instructi snnt, margine bine inde ramellos 

 breves, dentiformes vel ciUlformes, subulatos, erectos, subincurvos eniittentes. 

 Colo7' roseo-coccineiis vel dilute ruber. Stthstantia exsiccatae cartilaginea. 

 Structura interna: stratum periphericura <e cellulis luinimis borizontalibus 

 constans, fila numerosissiraa, subramosa, intricata, inarticulata includens. 

 Cellulae epidermidis hexagonae. Fructus ignoti. 



Substantia cardlaginea et fronde costata differt a Ginannia quacuni 

 ollni conjunxeram. 



DICRANEMA Sond. in Mohl et Schleclitend. 



bot. Zeit. 1845. pag. 56. 



•- 



Frons cartilaginea filiforniis dichotoma e cellularum stratis 

 tribus diversis formata; cellulae medullares elongatae filiformes 

 liyalinae, intermediae parenchymaticae subhexagonae granulis 

 miniitissimis repletae? .corticales minutae horizontales- Fructi- 

 ficatio duplex in ramulis intumescentibus inclusa , 1) sporae 

 numerosissimae subpyrifornies in glomerulum oblongum conge- 

 stae, 2) sphaerosporae (in distincta specie) oblongae demum 

 zonatini quadridivisae. 



Algae marinae Australasiacae , purpurasccntes. 



1. ]>icraiieiiia filirorme Sond. fronde elongata, raniis 

 erectis- Sond. I. c. 



Ad litus occidentale Novae HoIIandiae. Herb. Preiss. No. 2557. 



Frons caespitosa, pedalis, erecta, teres, fdiformis, inferne seuiilineam 

 crassa, apicem versus parum tenuior, a basi regulariter dicbotauia, 7'«wii^ 

 apice fastigiatis. angulis acutis, Sjphaerospoi^ae in ramulis tenninalibns 

 demum intumescentibus et cum fronde articulatis, infra stratum corticale, 

 oblongae vel ovatae, nucleum zonatim quadridivisum continent. Favellidia 

 non vidi. Color purpurascens, exsiccatae saepe pallidior. 



2, Dicraneiua Orevillei Sond. fronde pasilla, ramis 



divaricatis. Sond. 1. c. 



Gracilaria pumila Grev, in Edinb. Journ. nat Sc Voh 3. 



pag. 338. c. icone. 



Gigartina pumila Grev. in litt. 1844. 



Ad Novae HoHandiae litos occidentale, ramis CavUniae ? antarcticae insidens. 

 Herb. Preiss. No. 2558, 



