1424 Eu-Floridese, Spyridieae, Spyridia. 



polychotoma et anastomosibus juncta, exteriora breve articulata 

 submoniliformia dichotoma et fastigiata. 



1. Ptilocladia pulchra Sond. in Bot. Zeitung 1845, p. 52, Alg. Preiss. 2234 

 p. 23, Kuetz. Sp. pag. 674, Tab. Phyc. XII, t. (35, f. c-e, J. Ag. 

 Sp. II, p. 113, Epicr. pag. 89, Harv. Phyc. Austral. tab. 209. — 

 Characteres generis. 



Hab. ad rupes et conchas in littore occidentali et anstrali 

 Nova3 Hollandi;e (Preiss, Backhouse, Clifton, Curdie, Harvey). 

 — Radix e fibris intertextis constituta (a cl. J. Agardh scutata 

 dicitur). Frons ambitu triangularis, 6-15 cm. longa, ima basi pa- 

 rum angustata, 2-6 mm. et ultra lata, ramis seu pinnis inferiori- 

 bus subhorizontaliter patentibus, 4-7 cm. longis, intermediis 3-4 

 cm. longis, erectiusculis, superioribus sensim brevioribus. Pinnulae 

 ultimae subulatse, subincurvre, 2 mm. longae. Color saturate ruber, 

 in sicco s;epe expallescens. Substantia mollis spongiosa, in juve- 

 nili planta paullum gelatinosa, in adultiori rigida. 



Subfamilia XI. SPYRIDIE.E J. Ag. 



Spyridiece J. Ag. [1851] Sp. II, p. VII, et 337, Epicr. p. 266, Sond. [1852] in 

 Linntea XXV, p. 680 Schmitz et Hauptf. Engl. & Prantl Natiirl. PHan- 

 zenfam. (1897) p. 484. 



Spyridiaceos Ilarv. [1853] Nereis bor. Amer. II, p. 203, Ardiss. Phyc. Medit. I, 

 p. 191. 



Krons teres, quoquoversum ramosa, axi centrali grosse celluloso. 

 Cortex continuus aut loco eruptionis ramorum graciliorum interru- 

 ptus. Cystocarpia in ramulis brevibus definitis terminalia, primum 

 biloba, demum irregulariter tri-multiloba. Tetrasporangia triangule 

 divisa. 



SPYRIDIA Harv. [1833] in Hook. Br. Fl. Vol. II, p. 336, Man. p. 100, 

 Phyc. Brit. t. 46 (Etym. spyros sporta, corbis et idios similis), 

 Kuetz. Phyc. gen. p. 376, Sp. p. 665, J. Ag. Sp. II, p. 338, Epicr. 

 p. 267, Anal. algol. cont. IV (1897) p. 4 et cont. V (1899) p. 113, 

 Engl. & Prantl Natiirl. Pflanzenfam. (1897) p. 499, Bindera J. Ag. 

 [1841] in Linnaea XV, p. 36, Alg. med. (1842) p. 66, Ceramii 



