Horca. Champie^. 291 



nucleum efficiunt (Champia et Chylocladia) ; nunc parum a 

 cseteris abkulentes (Gloioderma, Fauchea). Lobi iutra nu- 

 cleum alii aliis pra^cociores videntur ut in Khodymenieis, ita 

 ut ad basem nuclei maturescentis hla prajgnantia juniora 

 srepe conspiciantur; hsec nunc intima videre credidi. 



* Sph(srosporis cruciatim divisis. 



Fronde farcta cellulosa, sphcerosporis per frondem vix 



mutatam sparsis LXVI. Horea. 

 ,, „ sphcBrosporis in nematheciis externis LXVII. Fauchea. 



** Sphcerosporis triangule divisis. 



Fronde tuhtdosa nunc stricturis articulata; sphcerospo- 

 ris demttm cryptas in fronde for- 



mantibits LXVIII. Chylocladia. 



„ „ diaphragmatihus celltdosis articulata, 



sphccrosporis strato peripherico immer- 



Sis LXIX. ClIAMPIA. 



liXVl. HOREA Harv. Trans. Ir. Acad. Vol. XXII p. 555- 

 Gloiodcrma J. Ag. Sp. p. 243. 



Frons elastico-gelatinosa compresso-plana stratis tribus con- 

 stituta: centrali cellulis rotundato-oblongis Laxius con- 

 junctis; intermedio cellulis minoribus aut filis anastomo- 

 santibus ; corticali filis verticalibus moniliformibus, muco 

 facilius soluto cohibitis constante. Cystocarpia intra pe- 

 ricarpium angulato-cornutum, carpostomio regulari i^er- 

 tusuni, nucleum oblongum subsimplicem, tela arachnoidea 

 filis tenuissimis reticuhxtim conjunctis constante cinctum, 

 foventia; fila gemmidiifera a fundo basali egredientia 

 articulata et reticulatim anastomosantia, gemmidia phi- 

 rima rotundata, sine ordine conspicuo demum conglobata 

 arcte cohibita, generantia. Sphcerosporce strato corticali 

 parum mutato immersa^, sparsce cruciatim divisse. 



Structura nuclei Genus ad Champiam et prsecipue ad 



Faucheani — considerata tela arachnoidea nucleum ambiento 



in his generibus eximie evoluta et persistente — • accedere 



mihi videtur, aliis notis facilius distinctum. Ob elasticitatem, 



qua partes dissectse frondis in aqua discedunt, Gigartinam 



refert aut Polycoeliam — fructibus vero ab his longius distat. 



19* 



