518 
aentis, segmentlis snperiorihus rectis ebtusis emarginatisve, 
sphaerosporis oblongis erueintim divisis in parte frondis su- 
prema aggregatis sorosque oblongos lincaresve effieientihns. 
Prionätis miorocarpa Sond. plant. Müller, 1. c. p. 676, 
an J. Agardh ? 
Wilson’s promontory, Mai 1853. 
Speeimina 2—3-uncialia. Frons compresso - plana, api- 
eem versus subcanalienlata, Tinearis, eirc. )/, lin. lata, dicho- 
tomo - decomposita, ramis fasligiatis patentibus, ultimis angu- 
stioribus obfusis vel obtnsiusculis saepius emarzinatis, Sphae- 
rosporae in apice ramulorum infra stratum superfieiale nidu- 
lantes numerosae, minutae, in sorum oblongum vel Iinearem 
latere plano frondis subelevatum collertae. Sulstantia varli- 
laginea, siccatae cornea. Color purpurascens. 
Stratum frondis interius e filis hyalinis artienlatis ramo- 
sis anastomosantibus, peripherieum e eellulis vertienlibus mi- 
nutis eonslat, . 
Gigartinae fastigiatae J. Ag. simillima, at fronde ma- 
gis compressa tenniore distineta. 
Spyridieae. 
53. Spyridia filamentosa Harv. var.? arbuscula Sand. 
roseo-purpurea, ramis Jateralibns ahbreviatis, ramellis quam 
in formis europaeis rigidioribus, 
Wilson’s promontory, Mai 1853. 
Dumonticae. 
ö4. Champia tasmanica Harv. 
Cape Liptrap, Jun, 1853. 
Rhodymenicac. 
55. Plocamium angustum Hary, Thamnophora ai- 
gusta J. Ag. 
Wilson’s promontery, Jun. 1853. 
