Ser. liHODosPEUME^. Earn. Gelidiacece. 



Plate CXI. 



BINDERA SPLACHNOIDES, ilaw. 



Gen. Char. Frond bag-like, proliferous, filled with transparent fluid, mem- 

 branaceous, composed of three strata ; the medullary stratum of inter- 

 woven, longitudinal filaments ; the intermediate of a single row of 

 large subquadrate cells ; the cortical of minnte, coloured cellules, in 

 few rows. Fructification : 1, external, globose, sessile conceptacles, 

 containing numerous parietal tufts of moniliform spore-threads; 2, 

 triangularly parted tetraspores, in definite, scattered sort. — Bindera* 

 {Harv.), in honour of Dr. Nicholas Binder, Biirgermeister of Ham- 

 burg, a patron of botany, and possessor of one of the finest collec- 

 tions of Algse in Europe. 



Frons saccata, prolifera, succo hyalino repleta, memiranacea, straits fere tribiis 

 contexta ; strata medidlari fills articulatis intertextis longitudinalibus, inter- 

 medio cellulis magnis subquadrilateris uniseriatls, corticall cellulis minimis 

 coloratis panciseriatis constante. Fruct.: 1, conceptacida (desmiocarpia) hi 

 frondem sessilia, globosa, fascicidos parietales plures fdorum sporiferoriim fo- 

 ventia; 2, tetrasporce triangule divisce, in soros defmitos superjiciales col- 

 lects. 



Bindera splachnoides, Harv. 



Hab. Discovered at Garden Island, near Fremantle, G. Clifton, Fsq. 



Geogu. Distr. Western Australia. 



Descb. Root a small disc. Frond 3-6 inches long, cylindrical, slightly narrowed 

 to the obtuse extremity, constricted at the base into a minute, setaceous 

 stipes, bag-hke, filled with transparent, watery gelatine, at first perfectly 

 simple, but afterwards emitting irregularly from its sides and apex similar 

 bag-like, simple fronds, and thus eventually becoming proliferously much 

 branched. Every branch is a repetition of the primary frond, to which it 

 is attached by a minute stipes. The veiy young fronds are traversed with 

 longitudinal filaments, laxly set in watery gelatine ; the older become sac- 

 cate, the filaments being confined to the inner side of the membranous wall 

 of the frond, where they constitute the inner or medullary stratum. Outside 

 this filamentous matrix is a single row of large, empty, quadrate cells, and 

 these are protected externally by a very thin cortical layer, formed of a few 

 rows of minute, coloured cellules, imperfectly arranged in moniliform sets. 

 The conceptacles are scattered on the younger branches, and are very pro- 

 minent, slightly constricted at base, and depressedly globular ; their pericarp 

 is thick, its walls composed of a network of filaments, from which spring 



* Bindera, J. Ag., is the same as Spyridia, Harv. 



