164 Cyolospoi"in;t), Sargassaceas, Cystoseira. 



vesiculis lanceolato-ellipsoideis singulis aut concatenatis, nonnuui- 

 quani immo confluentibus instructi, spinulis subulatis 3-4,5 millim. 

 longis laxius obsiti. Receptacula nunc e vesiculis mutatis nunc e 

 spinis coalescentibus formata, aliquando 3 cm. longitudine supe- 

 rantia et fere flliformia, fere semper spinulis sparsis instructa. 



2. Ramis primai-iis basi in topiin'os liaud vcl vix inei-assatis, 



5. Cystoseira selaginoiJes (Wulf.) Nacc. FI. Ven. VI, p. 96, Valiante 26g 

 Cystos. p. 19, t. 10-11, De Toni & Levi Fl. Alg. Ven. II, p. 37, 

 x\rdiss. Phyc. Medit. II, p. -)3, Fiwus selaginoides Wulf. in Jacq. 

 CoUect. I, p. 356, n. 137, Crypt. aquat. n. 3f^, Halerica selagi- 

 noides Kuetz. Sp. p. 595, Tab. Phyc. X, t. 43, f. I, Cystoseira eri- 

 coides var. selaginoides Ag. Sp. p. 53, Fiicus ericoides var. sela- 

 ginoides Turn. Hist. Fuc. III, p. 135, Cystoseira amentacea var. 

 selaginoides J. Ag. Sp. I, p. 330, Cystoseira amentacea ambigim 

 Erb. Critt. ital. ser. II, n. 474, Halerica vulpina Kuetz. Sp. p. 595, 

 Tab. Phyc. X, t. 43, f. II, Halerica tenuis Kuetz. Phyc. gener. 

 p. 335, Sp. p. 595, Tab. Phyc. X. t. 43, f. II, Cystoseira sedoides 

 Ag. Syst. p. 381, Fucus scdoides Desf. FI. Atlant. II, pag. 433, 

 tab. 360, Halerica sedoides Kuetz. Sp. p. 595, Tab. Phyc. X, t. 41, 

 f. II, Fucus ericoides var. sedoides Turn. Hist. Fuc. III, p. 135, 

 Treptacantha Turneri Kuetz. Sp. p. 594, Tab. Phyc. X, t. 38, 

 f. I?. — Caule trunciformi, nodoso, crasso, elongato, a basi vage 

 ramoso, ramis ordinariis ex apice ranuflorum caulis plurimis aut 

 sparsis, filiformibus, basi incrassatis, inferne nudis, superne ramel- 

 losis, spinulosis, spinulis remotis, patentibus, basi furcatis, supernis 

 fertilibus subdivaricatis in receptacula vix coalescentibus; vesiculis 

 nullis. 



Hah. \n mari Mediterraneo hinc inde (Ardissone) e. gr. ad An- 

 tipolin [Antibes] (Giraudy, Kuetzixg) aliaque loca Gallias (Hb. Za- 

 NARDiNi), circa Gibraltar (Piccone), ad littora Algeriae (Montagne, 

 pESFONTAiNEs, Monard), ItaIi9B (Zanardini, Naccari), Daluiatiae (Me- 

 neghini), Sardinia^ (Piccone, Gennari), Sicili;e (Bertoloni, Balsamo, 

 Meneghini), insularum Gorgonia? (P. Savi), Caprarise et Galit£8 (GE' 

 STRo, D'Albertis, Piccone); ad insulain « Alboran » (D'x\lbertis, 

 Piccone). — Frons ex toto 15-30 cm. alta; caulis ol) nodos tuber- 

 culosve asper, tum erectus et lateraliter rainosus tunc decumbens 

 et in ramos paniculatos abiens. Rami late pyramidati vel in planta 

 oxsiccata circumscriptione fere ovati, l)asi residuis partium dcla- 

 psaruni exasperati, superne pinnatim ramosissimi; Juniores folii- 



