riueozoosporina), Choi'd;u'iacoin, Cylindrocarpnf--. 419 



siint aiigiista ct elongata, articulis cylin(li-aceo-ol)lon<i;is. diametro 

 Ijhiries longioribus contexta, ut vidctur duplicis t,'cnoris, alia sur- 

 suin cxcresccntia ct ramosa, alia dcorsum tendcntia, tcnuiora et 

 iiiagis cylindracea. Fila infraperipherica quasi zonam propriam in- 

 tra fi-ondeiii pulvinatam efTicicntia sunt articulis brcvioribus ct 

 paulo crassioribus oinnilms siih.riiualibus instructa. moniliformia 

 ct dcnsius dichotoma; cx urUciilo supronio, ab inferioriluis quoad 

 formam et magnitudinem vix distincto, excunt fila peripherica sin- 

 gula aut pauca; ha3c elongata articulis brevibus ad genicula con- 

 tractis monilifoi-inia, ramulis lateraliter et diversa altitudine cgrc- 

 dicntibus ramoso-fasciculata, articulo terminali ab inferioribus vix 

 conspicuo diverso. Intcr ha^c fila, a ramo nunc supcriore nunc in- 

 lcri(H-i\ iit vidotiir, tr;insforinit:i olivcniunt sporangia nuuc subses- 

 sili;i luinc p;i,ucis articulis stcTililius (uon transmutatis) suffulta, 

 Juniora ovato-oblonga, dein magis oblnnga aut rotundato- ovali;i. 

 Iiuiuirendum est, an revera genera Cylindrocarpus et Petrospon- 

 gium cadcm sint. Monente claro J. Agardh in Petrospongio Berhe- 

 lcyi frondes singulffi componuntur plurimis stratis a strato hypo- 

 thallino radiantibus, omnibus intra mucum cohibentem conjunctis, 

 iii Cijlindrocarpo microscopico pluriiu;:c froiules ,juxtaposit;o iiivi- 

 cem liberffi adparent. 



1. Cylindrocarpus Berkeleyi (Grcv.) Crouan in Ann. Sc. N;it.. Rot;xn., gp2 

 III scr., Tom. XV, p. 363, t. 16, f. 12-13, FI. Finist. t. 25 sub 



n. 159, Petrospongium Berkeleyi N;ieg. in Kuetz. T;ib. Phyc. VIII, 

 t. 3, J. Ag. Till Algern. System. IV, p. 45, Leathesia Berheleyi 

 Ihirv. Phyc. Brit. t. 176. J. Ag. Sp. I, p. 51, Kuetz. Sp. p. 543, 

 Johnst. & Croall Brit. Sea Weeds III. p. 119, fig. 1-2, Chmtophora 

 Berheleyi Ch-ev. in Berk. Glean. Brit. Alg. p. 5, t. 1, f. 2, Cha:- 

 tophora plana C. Ag. olim (■?). — Frondibus hemispha^ricis vcl 

 plus minus globoso-depressis, solidis, filamentis ramosis (dichoto- 

 mis) articuhitis, ramis superioribus fastigiatis, moniliformibus, cla- 

 v;itis ; sporangiis obovoidcis, ad basi filorum terminalium evolutis. 

 Ilab. In rupibus inter limites maris in oceano Atlantico ad lit- 

 tora Angliie Hiberniseque (Berkeley, Griffiths, Wyatt, H.^rvey, 

 Dickie) et Gallia3 (Crouan); in sinu Neapolitano (Berthold); an e;> 

 dem in oceano Pacifico ad littora Japoniae? (Okamura). — Pulvinuli 

 carnoso-firmuli olivaceo-brunnei, 2-4,5 cm. cxpansi, 0,5-1 cm. alti. 



2. Cylindrocarpus microscopicus Crouan in Ann. Sc. Nat.. Botan., r,93 

 ser. 111, Tom. XV, p. 359, t. 16, f. 1-11, Fl. Finist. p. 160. — 



