Bostrychia. RhodomelEjE. 851 



milibiis cinctos, extimis minimis corticem constituentibus. Color re- 

 centis purpurascens, exsiccatione stepe in sordide ilavum aut virescen- 

 tem abiens. Substantia firma cartilaginea. 



Species vuigaris et nullis dubiis vexata. Fructus a Gmelinio ei 

 tributi sine dubio alieni. Specimina hujus ad Novam Zelandiam et 

 N. Hollandiam lecta memoravit Turner- recentiori «vo in liis plagis 

 inventam esse ignoro. Neque Harvey ex oceano australi specimen 

 vidit (cfr. Ner. Austr. I. c). 



Species inquircndce. 



?>. Br. Ramellosum (Sond. mscr.) "phyeomate spithanifeo teretius- 

 eulo vage ramoso, ramis elongatis subfastigiatis, ramellis 

 alterne pinnatis undique patentibus unicellularibus. — ■ Ad 

 Oras Mexicanas.'' Kilts. Sp. p. 842. 



4. Br. LiNDENBERGii (Eiltz. Pki/c. p. 434) ''phycomate distiche et 



vage ramoso, ramis sursum complanatis plumoso-quadripin- 

 natis jugamento primario parum dilatato, pinnis pectinatis, 

 pinnulisque subukitis. Thamn. disticha Limlenh.; Sph. tri- 

 angulatus var. bifarius Mart. Bras. p. 36? Angola.'^ — Kiltz. 

 Sp. p. 842. 



5. Br. Hypnoides (Kiitz. mscr.) "phycomate teretiusculo 2^ — ^3 pol- 



licari pennam passerinam-merulinam crasso ramosissimo, ra- 

 mis ramulisque undique et spiraliter obsessis, ramellis den- 

 sis tri-multifurcatis, apicibus patentibus spinescentibus. Co- 

 lor obscure purpurascens. Cuba." Kiifz. S^j. p. 842. 



CXXXIV. BoSTRYCHIA 3Iont. Cuha p. 39. Ft. ChU. VIII. 

 p. 305. SjjU. p. 418. Hooli. ct Harv. in Lond. Journ. IV. p. 

 268. Harv. Ncr. Austr. p. 68 ct Ner. Bor. Amer. II p. 54. 

 Kiltz. Sp. Alg. p. 839. Helicothamnion Kutz. Bhjc. gcncr. 

 p. 433. Helicothamnion etBostrychia Kiltz.inBot. Zeit.lSil 

 p. 3. Stictosiphonia Hool: ct Harv. in Crypt. Antarct. p. 

 177. Rhodomelaj sp. C. Ag. ct Anct. Alsidii Sp. J. Ag. 

 Synih. 



Frons violaceo-livida, compressa aut filiformis, distiche aut quo- 



quoversum ramosa, apice stepe incurva polysiphonia, eellulis 



nempe 4 — 11 circa centralem in orbem dispositis subseque 



longis contexta, siphonibus nudis articulata aut eortice cel- 



IV. ^ 57 



