

652 CALLITHAMNION. PHLEBOTHAMNION. 



Species dubiae. 



a. Callithamnion fasciculatum. Harv. Man. p. 109. — C. 

 cespitosum; ramis erectis flexuosis plumoso-pinnatis; plumulis 

 elongatis erectis, lineari-obovalis truncatis; pinnis elongatis fle- 

 xuosis, infimis simplicibus adpressis, superioribus erecto-patenti- 

 bus, apice ramulosis; articulis ramorum diametro triplo, pinnula- 

 rum sesquilongioribus subtorulosis. — Ad Yarmouth. 



b. C. crispellum. Ag. Spec. II. p. 183. — C. trichomatibus 

 vix pollicaribus capillaribus intricatis, maxime crispatis et imbri- 

 catis, creberrime et undique ramosis; ramellis divaricatis flexuo- 

 sis, articulis diametro aequalibus striatis. — In mari atlantico et 

 prope Gades ad Algas majores. — An Phlebothamnion? 



c. C. pellucidum. Harv. Alg. tasm. p. 15. — C. trichomati- 

 bus e basi communi lata stuposa ortis, tenuibus, pellucidis, mo- 

 nosiphoniis, roseis, vage subdichotome ramosissimis ; ramis ad 

 quodque geniculum ramulis brevissimis subulatis oppositis vel 

 verticillatis ornatis; articulis diametro sesqui- ad duplo longiori- 

 bus. Long. 5 — 6"* Crassities Ceramii rubri. — Ad Van-Diemens- 

 Land. 



d. Ceramium Lamourouxii. (Duby, Bot. gall. II. p. 970.) — 

 « Amoene roseum minutum valde cespitosum rigidiusculum sub- 

 strictum ramosum, ramis elongatis pinnatis, pinnulis inferioribus 

 simplicibus alternisve elongatis subulatis , pinnulis superioribus 

 abbreviatis in sterilibus simplicibus in fertilibus 2 — 5 fidis, articu- 

 lis superioribus diametro 2 — 4plo, inferioribus multoties Iongiori- 

 bus, conceptaculis pinnulas abbreviatas terminantibus pedicellatis 

 globosis ovato - globosisque. » — Ad Jitora Calvadosii in Fucis 

 majoribus. 



e. Ceramium penicillatum. Bertol. — Moris 1. c. — C. ro- 

 seum dichotomum, ramosissimum pellucidum, geniculis verticil- 

 lato-filamentosis , filamentis terminalibus coadunato-penicillatis; 

 «sporangiis» subpedicellatis turbinatis. — In stagno salso S. An- 

 tioco in Sardinia. 



Species perobscurae et male descriptae. 



Callith. simpliciusculum. Suhr , Regensb. Bot. Zeitg. 1840. 

 p. 293. 



Callith. verticillatum. Suhr I. c. — Ad Caput Bonae Spei. 



•■ ' : ~'i " 

 432. PHLEBOTHAMNION. Kg. Phyc. gener. p. 374. 



Trichomata ramosa , axi primario inferne semper corticato. 

 Stratum corticale fibrosum; fibrae radicaeformes , basi ramorum 

 exeuntes paralleliter vel plicatim decurrentes, articulatae. Tetra- 

 chocarpia et cystocarpia ut in Callithamnio. Cf. Kg. 1. c. Tab. 44. I. 



a. Bamellis alternatim pinnatis. 

 1) Ph. tetricum. Kg. 1. c. p. 374. — Ph. trichomatibus dense 

 fasciculalis 2 — 4" longis, fusco-purpureis, rigidis, inferne pennani 



