480 Pliroozoosporinfe, Encirliaccfe, Litliosiphon. 



Ilah. ad rrondeni Alarui' csculcntcc pr. «Kilkee» HibernLie 

 (T. Johnson). — An eadem species ac Lithosiphon Laminarim, 

 ut icon pro Bangia La?ninar/cc ab ill. Lyngbye exhibita docet. 



LITHOSIPHON Ilarv. [1810] Manual p. 43 (Etyra. lithos lapis et si- 

 phon tubus). Kjellm. Handbok I, p. (i2, Engl. Prantl Natiirl. Pfian^ 

 zenfam. 86. Lief. p. 201, Dc Toni Syst. Uebers. Fucoid. 1891, 

 p. 180, Chlorosiphon Kuetz. [1843] Phyc. gener. p. 301 (ex parte?), 

 Asperococcus subgen. Chlorosiphon J. Ag. Sp. I, p. 78. — Frons 

 filiformis, versus basin gradatim attenuata, disco radicali affixa. e 

 parenchymate subhomogeneo contexta; pili sparsi; sporangia uni- 

 locularia solitaria rotundato-elliptica ; sporangia plurilocularia soli- 

 taria, 4-8-locellata, vix (luoad formam a ceteris cellulis vegotati- 

 vis diversa, e celluhe superficialis singulfe transformatione gene- 

 rata. frondi immersa. apice libera: paraphyses absentes.. 



1. Lithosiphon pusiilus ;Carm.) Harv. Phyc. Brit. tab. 270, Man. p. 43, 

 Johnsl. & Croall Brit. Sea Weeds HI, p. 103, f. 1-6, Kjellm. Hand- 

 bok I, p. G2, Asperococcus? pusillus Carm. in Hook. Br. FI. H, 

 p. 277, Harv. Manual p. 35, J. Ag. Sp. I. p. 78, Chlorosiphon pu- 

 sillus Harv. Syst. List Phyc. Brit. p. X, Kuetz. Sp. p. 484, Chorda 

 Filir/n var. trichodes Lyngb. Hydrophyt. Dan. pag. 79, t. 18?, 

 Pittictaria pnsilla Crouan FI. Finist. p. 167. — Frondibus sub- 

 singnlis dense gregariis, simplicibus, liliformibus, ffiqualibus, fila- 

 mentis hyalinis verticillatis. 



Ilal). ad algas majores iraprimis ad Cliordam Filum in 

 oceano Atlantico ad oras Anglias (H.^uvey, Berkeley, Dickie) et 

 Gallia^ (Crou.^.n, Lenorm.vxd), in sinu Codano ; ad oras Scandinaviaj 

 (K.jellm.vn). — l''rondes 4-12 cm. longie, crassitie setse, strictre aut 

 incurvie, plantam in qua crescunt densissime obvallantes, sed ut 

 plurimum singuhe, nec cajspitose provenientes, radiculis minutis- 

 simis in piantara iin;i iiicrescunt introductis adfixaj. Prima infantia 

 frons lilo artieulato. nriiculis Iatioril)US quain longioribus, constarc 

 videtur; subdividuntur vero articuli et frons cellulosa oritur. Fila- 

 menta tenuissima hyalina, longe articulata, quasi ex apice apiculi 

 simplicis provenientia, totam frondem investiunt; in inferiore parte 

 et in planta juniore sunt fere in fronde verticillata et articulatura 

 adspectum frondi tribuunt. Cellula> frondis rotundata!, seriebus lon- 

 gitudinalibus secus longas spiras dispositiE. Sporangia plurilocula- 

 ria 4-8-loceIIata; sporangia unilocularia subglobosa. J. Ag. 1. c. 



