Eu-Florideae, Lophothaliese. 1007 



Chamaethamnion schizandrum Falkenb. loc. cit. (C. schizandra), 1669 

 Rhodomelaceen (l!)Ol) p. 579, t. 14, f. 0-17, Polysiphonia nigrita 

 Sond. in Hotan. Zeitung 1845, pag. 53 (quoad stichidia aggregata, 

 lanceolata, tetrasporangia biseriata foventia). — Characteres generis. 

 Hab. ad frondes Polysiphon iaj nigritse Sond. ex littore 

 occidentali Novaa Hollandise (Harvey, Sonder). — Csespituli per- 

 pusilli, ad 5 millim. longi, rigiduli ; frondes cystocarpiferae ac an- 

 theridiferae superne simplices, tetrasporangiferse parce ramulosa?. 

 Cellulae pericentrales 5-7, segmento ultimo (inferiori) nionosiphonio. 



Subfamilia VII. LOPHOTHALIEjE Schmitz et Falkenb. 



Lophothaliece Schmitz et Falkenb. [1897] in Engl. et Prantl Natiirl. Pflanzen- 

 fam. p. 445. 



Frons pleruinque teres, radialiter constructa, tota erecta aut deor- 

 sum decumbens, lateraliter (spirali aut disticho ordine) ramosa, sae- 

 pius pilis monosiphoniis coloratis persistentibus praedita, structuram 

 parenchymaticam prsebens. Cellulaa pericentrales 4-8, haud transverse 

 divisae, nndae hyphisve corticatse. Tetrasporangia in stichidiis nidu- 

 lantia, in quoque segmento nunc singula aut bina, nunc quaternatim 

 verticillata. 



Conspectus generum 



I. Rami quoquoversum (spirali ordine) egredientes. 



.4) Tetrasporangia in quoque articulo singula secus lineam longitudinalem spi- 

 ralem disposita. 



Brongniartella Bory. — Ramelli tetrasporangiferi pedicello polysiphonio fulti. 



Cellulse pericentrales 5 aut 8 (rarissime 4) l ). 

 Lophocladia Schmitz. — Stichidia pedicello monosiphonio fulta, Cellulse peri- 

 centrales 4. 



]}) Tetrasporangia in quoque articulo fertili bina opposita aut quaterna ver- 

 ticillata. 



^) Quatuor siphones pericentrales reperiuntur, fide auctorum, in Brongniar- 

 tella Fereduyte (J. Ag.) Schmitz et in Br. disticha Falkenb., pro quibus esset for- 

 san conveniens subgenus Thaumafelke nomine a cl. Falkenberg institutum servare. 

 Harum duarum specierum specimina originalia non vidi. 



