430 H\TNEACE. 



ORDO VIII. IIYPNEACE^. 



Hypneacere J. Ag. mscr. Sphoerococcoideanmi gen. J. Ag. Alg. 

 med. Cystocloniearura, Caulacanthearum et Gigarlinearum gen. 

 Ktitz. 



Frondes inarticulate, (ills elongatis cellulisve brevioribus contoxta?. 

 Cystocarpia licinisphrcrice prominula, intra pericarpiuoi cel- 

 lulosum clausum nucleos continentia plurimos, ud placentas 

 centrales et parietales suspenses, gemmidiis rotundato-objiongis 

 a central! placentula radianlibus. pedicellatis, invicem liberis et 

 singulis sacculo inclusis constantes. Sphcerosporw inter fila 

 ant cellulas peripliericas frondis, saspe Neraatheciose evolutas, 

 nidulantes. 



Frondes in cognitis omnibus Jiliformes, decomposito-ramosis- 

 simaa, ramis spinulosis aut virjjalis, crespites formantes intricatos ft 

 quandoquidem ramis concretis inextricandos, pulvinatim late expanses 

 aut elevates. Axis centralis in omnibus adest, in diversis vero plus 

 minus conspicuus, immo alitjuatulo liaud facile observandus; mine 

 monosiplionius et articulatus atque IVondem fere tubulosam per- 

 currcns, ramis ab a\i egredicntibus stratum periphcrictim tubi for- 

 inantibus (Caiilacuntlius); mine initio serie cellularum centrali, demum 

 pluribus aut lililormibus (Acanlhococcus), aut cellulioformibus et a 

 cellulis exterioribus minus diversis constans (Ihpnea), cellulis ro- 

 tundatis arctn stipatis cinctus. Cellul.e perijhericsL i rotundata 1 mi- 

 nores, verlicales aut verticaliter scriatiu. Cystocarpia (in Caulacantlio 

 ignota) intra pericarpium licmispliicricum clausura et stratis cellularum 

 oxterioribus frondis eontoxtuni, nucleos plurimos rotundalos, nullo 

 pcridermate cinctos, fovent. Nuclcoli ad placenlulus liliformes, a 

 basi ad tectum fornicatum pericarpii extensas plurimas siispcnsi, 

 alii parietales, alii medium occupanf.es, gemmidiis constant <jiio- 

 quoversum a puncto centrali radiantibus, invicem liberis. Gemmidia 



