388 Eu-Florideze,, Sphaerocoecacez. 
III. Gonimoblastus thallo pedicelli ope aut latà basi affixus i. d. 
omnino externus vel tantum cortice modo vario inclusus, 
Rhodomelacea. — Oystocarpia basi latà aut pedicello brevi thallo 
imposita. Gonimoblastus intra cavitatem fructigenam apice pertu- 
sam evolutus; carpospore in apicibus ramorum fertilium singul:, 
rarius catenatz. Tetrasporangia triangule divisa. 
Ceramiacec. — Oystocarpia omnino externa aut cortice inclu- 
sa, nuda aut ramulis propriis plus minus laxe involucrata. (oni- 
moblasti singuli aut szpius gemini, plerumque in plures lobos (go- 
nimolobos) divisi; earpospore fere ex omnibus cellulis czspituli fru- 
ctiferi efformats. 'letrasporangia triangule aut cruciatim divisa. 
Familia I. SPHAISROCOCCACEAS (Dum.) Sehm. 
Sphaocoecacec Schm. [1889] Syst. Uebers. Florid. pag. 8. 
Splwerococcee Dumort, [1822] Comm. Bot. p. 72 (Sphwerococcus), Kuetz. [1843] 
in Linnzea XVII, p. 103, Phye. gener. p. 407 (Bowiesia, Splheerococcus, Tre- 
mautocarpus). 
Spharococcariee Dumort. [1829] Anal. fam. p. 76 partim. 
Splhugrococcoideg J. Ag. [1842] Alg. medit. p. 67, 148, [1851] Sp. II, p. IX, 581, 
[1876] Epier. p. 392. 
Thallus teres aut complanatus, furcatus aut nonnunquam late- 
raliter prolifer, structurà parenchymaticà aut cellulari-filamentosà. 
Cystocarpia prominula, quandoque in ramulis propriis evoluta et hine 
quasi brevi pedicello fulta, plerumque earpostomio instructa. Goni- 
moblastus medio placentze incrassatz:e adnatus, valde ramosus, dense 
congestus et confluens, plerumque hemisphzrico-convexus; carpo- 
spore ad apices ramulorum fertilium singula: aut plures catenatze. 
Tetrasporangia per thalli superficiem disposita, in stratu eorticali 
nidulantia, sparsa aut nonnumquam nematheciose collecta, zonatim 
vel eruciatim divisa. 
Lr 
Conspectus subfamiliarum. 
I. Cystocarpia in ramulis propriis evoluta. 
A4. Cystocarpia in ramulis brevibus. acrogena. Tetrasporangia 
zonatim divisa. 
Phacelocarpea. — Carpostomium rimzform:. Filamenta car- 
posporifera dense congesta. 
Splhirococceem. — QCarpostomium lateraliter apertum. 
