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frondfi immersae, rotundat*, triangule divise. Species
sequei-tes, ad Rbodomeniam antea relatas, oompleotitar:
1. Huth. crjstata; 2. Euth. rostrata; 3, Euth.
Fabriciana; 4. Euth. Baerii (Rhod. Baeri Post, ei Rura.) 5. Euth.?
Juer-gensii; 6. Euth.? Bangii; 7. Euth.? perreptans.
Excursus de Cystoclonieis. Opinionem olim protuli [Alg. Med,
p. 64) favellidiis non semper eandem esse originem. Favellidia
nimirum nonnulla, qualia in Ghondro ex. gr. proveniunt, ita oriri, at
stratum filorum aut cellularum sporas producentium magia magisqae
evolvatur et plexus producatur filorum laxiorum, inter quae, per
cohortes singulas aut plures, cellulae sporigenae nascantur, singula»
singulas sporas generantes, sed omnes cujusvis cohortis in nucleos
singulos aut plures demum conglobatae. Quot itaque sporis constat, tot
cellulis suam originem debet cohors aut nucleus quisque. In
favellidiis autem aliis aliam sporarum originem observare credideram;
singulis nempe cellulis, quarum endochroma in sporas namerosas dilapsam
fuerat, nucleos aut cohortes singulos oriri. Rem ita se habere,
hodie convictus sum, unde hujus generis fructus voce KaUdii designatos
volui, illis termino Fayellidii servato.
Algas diversis his fructibus donatas tribus diversas formare
debere, justi harum rerum aestimatores nobis forsan concedant. Novaai
itaque familiam e membris in systemate dispersis hodie constitoimos,
cui nomen a Kuetzingio datum conservari posse crediderimus. Genera
sequentia huic tribui subjungo:
1. A*nvKUtm (Fjl F/, Scan. mut. UmiL). Frons cellulis hexagono-pris-
maticis versus superficiem minoribus, endochromate granuloso
rapietis, contexta. Kalidia frondi innata, subprominentia, extus
strato nemalbeoioideo tecta, sporas numerosas intra cellulas
praegnantes evolventia. Sphaerosporae in strato Nemathecioideo
evolatae .... . Algae teretiusculae corneae.
Species sunt: Ahnf. plicata (Sph. plicatus Ag.)
Ahnf. concinna (Sph. concinnus var. immersas As.)
22. Ahnf. gigartinoides nov. sp. frondibus caespitosis teretibus
decomposito-furcatis ramentisque simpliciusculis oblusis
subsecun-dis obsitis.
Vid S:t Augustin på Mexicanska stranden af Stilla Oceanen.
2.? Gymnogongrus (Mart. Bros. mut. limit.) Frons cellulis angulatis,
intertextis minoribus anastomosantibus, versus superficiem in
cellulas radiantes abeuntibus constituta. Kalidia.....Sphaeros-
porae in strato Nemathecioideo extra superficiem frondis
prominente evolutae, in articulis filorum natae, radiatim dispositae,
cru-ciatim divisae.
Unica mihi nola species est G. Griffithsiae (Sph. Griffithsiac Ag.)
3. Cystoclomum (Klktz. Phycol. p. 404.)
Originem sporarum multarum intra cellulam singulam
evidentissime vidi. Praeterea in analysi a Kuetzingio data nihil mutandum.
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