346 DlJMONTIEvE. 



ORDO \. DUMONTIE/E. 



Diiraontiojc J. Ag. mscr. Cryptonomearum et Chondriearum {;cn. 

 J. Ag. et Auct. Halymeniete, ChondrosipheaS et Cbampiea; (quoad 

 partes) Kulz. 



Frons inarticulata tubulosa, Uibo filis sparsis percurso ot diaplirag- 

 matibus quandoque intercepto. Cyslocarpia Crondi immersa 

 aut pericarpio proprio munito, nucJeum ant micleolos plurcs 

 subconfluenteSj transformatione filorum a placenta radiantium 

 fonnatos, continontia; flla gemmidiifera paniculato-ramosa arti- 

 culata, intra arliculos suporiores gemmidia numerosa oblonga, 

 itcrata divisionc orta, dcnium conglobata ct rauco cobibita fo- 

 ventia. SphccrosporcB fronde immersfe, nullo ordinc sparsae. 



Al{j5e teretiuscuko aiit compresscX'j tubulosio, plurimcc lubo con- 

 tirmo, paucce (Clianipia) diaphragmatibus iiitercepta?, nonnullo; (afli- 

 nitate dubioc) omnirio saccatnc (Ilalosaccion); forma c^terum ot 

 ramificalione varitic. Fila interiora articulata , ramosa aut ana- 

 stomosantia, sparsissiiua aut dcnsiora tubuin porciirrunt. Stratum 

 periphericum subsingula aut pluriluis seriebus cellularum contextumi 

 mine fills articulatis raraoso-fastigiatis, transvorsaliter ab intcriori- 

 l)iis egrediontibus constat. 



Organa fructificationis duplicis generis observata fuorunt. Cy- 

 stocarpia in simplicissimis fronde immersa (Dumonlia, Catenella, 

 lihabdonia) in superioribus intra pericarpium externum, bemispba!- 

 i-icc inllatum aut urceolaltim, cxcepta (Chylocladia. Cliampia), in 

 uno genero (Ualosaccion) nonduin cognita. Carposlomium in iilu- 

 riinis d(Mii(juc adcsse vidctur; in Dumonlia lanlum nonduin obser- 

 \altim. Placenta mine basalis collulosa, nucleuin sustincns (Cbylo- 

 iea 1 ), mine ccntralis fila gcmmidiifcra quoquoversum cmitlons. 



