519 
56. Pi. costatum Hook. et, Ham. Thamnophora co- 
stata J. Ag, 
Wilson’s promantory, Jun. 1853, 
Dictyopsis Sond. nov. gen. 
Frons rosea, membranacea, plana, e cuneata basi linea- 
ris vel lanccolata, indivisa vel lacerato -subdichtoma , margine 
ramentis ciliaeformibus, ramosis fimhriata, stratis duobus eon- 
süiteta: interiore cellulis magnis subrotundo -angulatis biseria- 
 fis, exteriore seu superficiali eellulis minntis, endochromate 
colorato faretis, singula serie dispositis contexto. Superhicies 
oculis armatis spectata, cellulas endochroma continentes osten- 
dit ita dispositas, ut efligiem retieuli foraminulis orbienlatis 
exhibeat. Foraminula ipsa in nniversum aeqnalia simulgue 
vacua, passim tamen cellularım radiatarım seriebus suhelausa. 
Cystocarpia minnta fimbriis adnata, elausa, glomerulum ob- 
longum gemmwidiorum suhangulatorum includentia. 
57. D. fiinbriata Sond. 
Wilson’s promontory, in alyis majoribus parasitica, Mai 
1853, 
Frons I— 2-pollicaris, 1—1'/z lin. lata, enervis, ad- 
ulta et siecata venulis alternis e nervo obsoleto medium oc- 
cupante ortis praedita. Fimbriae marginales subulatae vel 
sessiles. Substantia membranacea, madefactae subearnosa. 
Effigiem snperficiei mieroscopio suhjeetae texinris retieu- 
latis qualibus Brabautia floret haud incommode comparareris. 
Hypneaccae. 
. Hypnea musciformis Lamourx. Fucus muscifor- 
as Turn. 1. 127. 
Wilson’s promontory, Mai 1853. 
59. M. cyatoclonioiden Sond. elata virgato - ramosissima 
teres, ramis elongalis, ramulis tenuibns apiee saepe circinatis 
