collected in Africa by Dr. Krauss. 91 



Frons vix uncialis, crassitie capillari, hyalina ; granula angulata, 



coccinea, in fronde hyalina seriatim digesta ; ad Port Natal, ste- 



rilis. 

 222*. Bryopsis setacea, Hg. Pilis setaceis, subramosis, apice plu- 



mosis. 

 Fila tenacia, nitida, 2 — 3-pollicaria, setacea, simplicia vel rarius 



ramulo laterali instructa, apice ramentis brevibus, simplicissimis, 



lanceolato-pinnata. Color obscure viridis, chartse arete adhseret. 

 Bryops. BalbisiancE proxima. Hab. ad Port Natal Point, Africse me- 



ridionalis, scopulis littoralibus insidens. 

 Caulerpa filiformis, Hg. Frondibus planis, linearibus, subdichotomis, 



integerrimis. 

 Surculus cylindricus, filiformis, stramineus, infeme emittens radices 



librosas, fasciculatas ; frons spithampea, adscendens, basi cylin- 



drica, annulato-rugosa, deinde plana, linearis, integerrima, sub- 



dichotoma, lineam lata ; color gramineus, substantia membra- 



nacea. 

 Synon. AmphiboUs filiformis, Sch. 

 Var. /3. Fronde latiore ligulata. 

 Var. y. Fronde breviore palmata. Forsan distincta species CflM/e/y^a 



palmata nominanda. 

 Ad Cape LaguUas, Africse meridionalis, in arena repens. 

 Alsidium ericoides, Hg. Fronde tereti, continua, filiformi, raraosa ; 



ramentis brevibus, subarticulatis, subulatis, dense imbricatis ves- 



tita. 

 Radix callus exiguus, frons spithamaea, teres, ramosa, pyramidata, 



ramenta obtusiuscula, zonis obscurioribus notata. 

 Hab. ad Port Natal. Sub Rhodomela ericoides in collectione 



signata. 

 Sphcerococcus (Chondrus) scutellatiis, Hg. Fronde compressa, dicho- 



toma, segmentis linearibus ; capsulis sphsericis in margine disco- 



que ramulonim sessilibus, scutellatis. 

 Habitus Sphteroc. crispi var. linearis ; frons cartUaginea, bipoUi- 



caris, vix lineam lata, segmentis superioribus cuneatis, obtusis ; 



color exsiccati atro-purpureus. 

 Sphcerococcus (Gigartina) nodifertis, Hg. Fronde cartilaginea, tereti, 



subdichotoma, segmentis irregulariter dentatis, obtusis, denti- 



bus apice capsuliferis. 

 Color purpureus, frons crassiuscula. 

 Ad Port Natal, spec, manca. 



Sphcerococcus (Geliditun) aculeatus, Hg. Fronde cartilagineo-cornea, 

 ramosa, verticillato-aculeata. 

 Radix callus exiguus, frons cartilagineo-cornea, 4 — 6-pollicaris, 

 infeme teretiuscula, nuda, mox bi- vel trichotoma, lineam crassa, 

 compressa, vel tri- aut quadrangularis, aculeata ; aculei oppositi, 

 terni aut quatemi verticillati, lineam longi, basi dilatati, subu- 



* The numbers prefixed to tlie species refer to the numbers in Dr. 

 Krauss's Fasciculi of Natal Specimens. A series of tlic species here described 

 has been forwarded to the Herbarium of the Botanical Society of liondon, 

 where they may be consulted on application. 



