248 PLVNTARUM IN MAUI ULT.UO, ETC. 



44. Diclyola ciliata,/. Ag. sp. alg. I, p. 93. 



Dictyota no v. sp. ? Fig: el Be Not. alg. mar. ros., p. SI. 



Hab. ad oras yemcnses. — Portier ! (Hb. Figari IJ 



Fades D. dichotomae. Frons margine clliis minutis vel ramentis ligulalls 

 instructa. Areolae conspicuae medio piilcherrime punctatae. 



Species inquirenda. 



45. Diclyola acuminala. Kiitz. sp. alg., p. 555. 

 Hab. Rosseir. — Schiinper (sec. KiitzingJ. 



Species mibi plane ignota et parum intellecta. 



XII. Stilophora,/ Ag. sp. alg. /, p. 83. 



46. Stilophora rhizodcs, /. Ag. sp. alg. I, p. 85. 



Hab. Suez, Akaba, Tor, Djedda, Kosseir. — Portier! CHb. Figari !) 



47. Slilophora arabica. Fig. et De Not. alg. mar. ros., p. 32, fig. III. 



St. fronde cylindracca versus apiccm vix attenuata dichotomo-clongata , 

 apicibus brevissime filamenlosis, filamentis extra superficicm vix prominenlibus 

 densissime stipatis clavato-moniliformibus, articulis diametro brevioribus. 



Chordaria erythraea. Montagn. in ann. sc. nat. 1849, p. 288. 



Hab. Suez, Akaba, Tor. — Lallemaiid fsec. Montague J. Portier! (Hb. 

 Figari ! J 



Frons 2-3 decim. attingit, vix miliimetrnm crassa, c basi versus apicem 

 fere eandem crassitlem servans, dichotome ramosa, segmentis dislantibus, utplu- 

 rimuni valde elongatis divaricatis, rarissime ramulis brevissimis hue illuc ornatis. 

 Sori verrucaeformes depressi extra superficicm frondis vix prominentes, valde 

 approximati haud rare per lolam frondem coiifluentes. Paraneinata abbreviata 

 articulato-clavata, articulis diametro usque duplo brevioribus. Sporae obovoideo- 

 oblongae. Color in exsiccatis flavescens. 



