340 SPYRIDIE/K. Spyridia. 



f rue til capsulari distinctissimum. Gemmidia singula singulis sacculis 

 inclusa; plurirna vero in niicleum aggregata; ct nuclei plures circa 

 placentam dispositi et pericarpio tecti. 



Specios liiijus generis ulterius investigand;t>, iitruin distinctre 

 conjungantur an barum plures distjnguantur. A Kulzingio species 

 pluriinoe propositoe, cliaracteribus a longitudine articulorum, ramellis 

 densioribus aut sparsioribus etc. potissiraum petitis, me judice hand 

 constantibus. Unaquocque species raraellis plurimis aut fere nullis 

 obvonit; articuli, pro longitudine ramelloruiu eorumque tenuitato 

 aut crassitie, longitudine variant. Apices juveniles acuti, demum 

 obtusiores. 



In diversis speciebus ramollorum genicula aut omnino ecor- 

 licata sed demum quasi fasciala, aut strato corticali evidentiori 

 obducta. In illis spbtcrospora evolutione celluke peculiaris juxta 

 geniculum format* mihi adparuertint; in bis spbwrosporas morpliosi 

 cellularum corticalium ortas credideriui. His ductus difforentiis, 

 genera duo Spyridiac et Bindenc olim formavi, qua; (fructu capsu- 

 lari Bindera ignoto) subgenera potius bodie existimo. Alia irisuper 

 adest differentia caulis, qui in nonnullis tubulosus et articulatiiSj in aliis 

 solidescens. Sed hxc differentia in sectiones priores liaud quadrat. 



I. SPYRIDIA, frondium ramellis ecorlicatis, demum fasciatis; 

 f'ertillbus sparsis, sphterosporas ad genicula singulas 



aut paucas gerentibus. 

 \. Frons quoquoversum rarnosa. 



\. SP. FILAMEMOSA (Wulf. Crypt, aqu. p. 64) fronde filiform! quo- 

 quovcrsum vage ramosa, ramis conformibus corticatis ramellosis, 

 ramellis piliformibus sparsis articulatis ecorticalis, simplici acu- 

 mine tcrminatis. 



Fucus lilamentosus Wulf. I. c. 



Ceramium filamcntosum Ag. sp. II. p. 141! 



Spyridia filamentosa Ilarv. in Br. Fl. p. 336! Man. p. 101! Journ. 

 Dot. III. p. 449. P/iyc. Dr. tab. 40! J. Ay. Al<j. mad. p. "9! Mont. Can. 

 p. 174. 



Exs. Wyatt Danm. n. 88. Chaw. Norm. n. 1G1! Desm. Cry pi. p. 

 1004 ct 1005. 



liujus formae principales sunt: 



a. Filatnenlosa pallido rosca, ramis elongatis parcius ramosis, ra- 

 mellis elongatis liliformibus, articulis ramelloruiu diametro i-G 

 plo longioribus. 



