834 Eu-Floridese, Chondriese, Chondria. 



des in crusta calcarea caespitosse, plexu fibrarum radicalium sti- 

 patse, denso agmine assurgentes, 4-3 cm. longse aut raro ultra, re- 

 centes nunc crassitiem pennaB columbinse sequantes, exsiccatione 

 valde contractai et cartilagineae, inferne plerumque per spatium nu- 

 diusculss, dein ramis 2-4,5 cm. longis plerumque simplicibus ere- 

 cto-patentibus obsita?. Rami basi vix angustiores, versus apicem 

 longe attenuati, juveniles et seniles denudati, adultiores et sticbi- 

 diiferi ramulis per totam longitudinem virgati. Ramuli initio ex 

 foveolis racbidis subtorulosae singuli provenientes, sensim ex eodem 

 puncto tunc subprominulo plures fasciculati, exteriores ssepe in- 

 curvi, plurimi ruguloso-insequales, fiexi aut parum stricti, 2-5 rnm. 

 longi, utrinque attenuati, nunc (adultiores) basi longius apice bre- 

 vius, nunc fere seque attenuati, fertiles. Stichidia utrinque atte- 

 nuata et foveolato-torulosa, juniora fere sessilia et mox supra 

 basin tetrasporangifera, adultiora supra pedicellum magis conspi- 

 cuum lancoidea et basi partis incrassatse tetrasporangiis onusta, 

 novis nunc a pedicello et prsecipue ad basin pullulantibus. Cellula: 

 5, centralem cingentes, in ramis junioribus, intermixtis tenuio- 

 ribus in caulibus minus distinctse adsunt; corticales cellula3 sub- 

 verticaliter elongatse, a superficie visas puncta fere referunt. Quid 

 sit Carpocaulon digitatum Kuetz. Sp. p. 852 (ex Oceano Atlan- 

 tico), Tab. Phyc. XV, t. 42, f. e-f (tetrasporif.) mihi plane non 

 liquet; forsan sistit statum Laurenciai cujusdam. 

 6. Chondria tenuissima (Good. et Woodw.) Ag. Sp. Alg. I, pag. 352 1122 

 (excl. var.), Syst. p. 205, Harv. Ner. Bor. Am. IJ, p. 21, t. XVIII, 

 fig. F, Sond. Alg. trop. Austral. p. 51, Ghondriopsis tenuissima 

 J. Ag. Sp. II, p. 804, Anal. algol. (1890), p. 156, Hauck Meere- 

 salgen pag. 212, fig. 91, Ardiss. Phyc. Medit. I, p. 347, Buffham 

 On anther. of Florid. (1888) p. 262, t. XXII, f. 15 (antheridia), 

 Phillips On the Develop. of Cystoc. in Rhodomel. II (1896) p. 197, 

 t. XIII, f. 810 (fructus), Falkenb. Rhodomelaceen p. 195, Fucus 

 tenuissimus Good. et Woodw. in Linnean Transact. III, p. 215, 

 tab. 19, Turn. Hist. Fuc. tab. 100, Engl. Bot. tab. 1882, Lau- 

 rencia tenuissima Grev. Alg. Brit. pag. 113, J. Ag. Alg. Med. 

 pag. 112, Harv. Phyc. Brit. tab. 198, Alsidium tenuissimum 

 Kuetz. Phyc. gener. tab. 55, I, Sp. pag. 843, Tab. Phyc. XV, 

 tab. 34, Alsidium subtile Kuetz. Sp. pag. 843, Tab. Phyc. XV, 

 t. 35, f. a-c, J. Ag. Sp. II, p. 811, Gigartina tenuissima Lamour. 

 Essai p. 48, Chondriopsis divergens J. Ag. Sp. II, p. 807, Anal. 

 algol. (1890) p. 151, Ardiss. Florid. ital. (Rhodom.), p. 48, t. 18, 



