Ser. Rhodospeeme^. Fam. Cri/ptonemiacece. 



Plate CLVL 

 HOREA FRUTICULOSA, Haw. 



Gen. Char. Frond fleshy-membranous, piano-compressed, composed of 

 three strata of cells; the medullar^/ stratum of large, empty, thin- 

 walled cells (often ruptured) ; the intermediate, of several rows of 

 smaller, coloured, angular cells ; the cortical, of vertical, dichotomous, 

 moniliform filaments, set in gelatine. Fructification : 1, favell<2 

 within a proper external pericarp crowned with spines, and opening 

 by a pore, attached to a basal placenta, invested with cobwebby inter- 

 woven filaments, and containing angular spores ; 2, cruciate tetra- 

 spores, dispersed among the filaments of the cortical stratum. — Horea 

 {Harv.), in honour of the Rev. W. S. Hore, an accomplished naturalist. 



Frons carnoso-memhra9iacea,plano-compressa, ex stratis trihus cellularum compo- 

 sita ; stratum medullare cellulis maximis inanibus demiim scepe ruptis, intei'me- 

 dium cellulis pluriseriatis minoribus coloratis, corticale fills moniliformibus 

 verticalibus dichotomis muco coJdbitis formatum. Fruct. : 1, Favellce intra 

 pericarpium externum apice spinis coronatum poro pertusum, ad placentam 

 basalem affixce, fills arachnoldels laxe clrcnmdatce, sporas conglobatas angu- 

 lares foventes ; 3, tetrasporce spar see, cruclatlm dlvlsce. 



Horea fruticulosa ; frond shrubby, tereti-compressed, irregularly much- 

 branched, pale-red, succulent ; branches virgate, subsimple, beset with 

 subulate, simple or subsimple, quadrifarious ramuli; conceptacles 

 4-horned, on squarrose branchlets. 

 H. fruticulosa ; fronde fruticulosa tereti-compressa vage ramosisslma rubra suc- 

 cosa ; ramls vlrgatls simplicmsculls ramuUs subulatls slmpllclbus v. subramo- 

 sis crebre obsessls ; cystocarplls 4<-corn7itls ramulls squarrosls insidentibus. 



Horea fruticulosa, Harv. Alg. Exslc. Austr. n. 440. 



Hab. Port Phillip Heads, rare, W. H. H. 



Geogr. Distr. (As above.) 



Descr. Root branching. Fronds tufted, 3-6 inches long, 1-H hnes in dia- 

 meter, shrubby, between cylindrical and compressed, very irregularly much 

 branched. The conceptacle-bearing individuals are more robust and rigid, 

 and more irregularly branched and squarrose than those that bear tetra- 

 spores. These last have generally a leading stem, closely set throughout 

 with lateral branches directed to all sides, patent, subsimple, and virgate or 

 flexuous, rather densely set with slender, subulate and attenuate ramuli. 

 The ramuli are 3-5 lines long, and very acute. Those of the conceptacle- 

 bearing plants are often much divided, especially such as bear the concepta- 



