Hygrobiella 73_ 



APPENDIX 



de generibus nonnuUis Oeplialozise afanibus, 



HYGKOBIELLA nov. gen. 



Plantce pusillse csespitosae. Caules crassiusculi, fragiles 

 tamen, sectione transversa 6 — 12 cellulas lati, cellulis cor- 

 ticalibus 14 — 24-seriatis, internis vix diversis ; subpellucidi 

 Yel in 8etate opaci, basi rhizomatosi et flagellis stcbarhizis 

 matrici adfixi, radicellis alicubi subnullis, superne pauci- 

 ramei ssepeque iteratim innovando-floriferi. Raini flagelli- 

 formes postici, foliosi laterales et axillares ; innovatio sub- 

 floralis postica perraro obvia est. Folia inferiora minuta 

 distantia, superiora increscentia perssepeque confertiora et 

 equitantia, omnia transversa complicato-biloba — vel in- 

 feriora integra — lobis sequalibus vel antico subminore ; 

 cellulcB leptodermes subminutte quadrate -hexagonee — in 

 unica sp. majusculee et elongatae. Foliola vel omnino 

 nulla vel in aliis speciebus prsesentia, foliis parum minora, 

 iisdem sat similia nisi ut frequentius indivisa. Flores dioici : 

 $ in caule ramove terminales, ssepe steriles et innovatione 

 suffulti. BractecB paucijugse tristichge — vel, in speciebus 

 foliolis orbatis distichse — in aliis speciebus dimidio inferiore 

 incrassatae. Ferianthia magna, tenuia vel subcarnosa, fusi- 

 formia vel oblonga, alte obtuse trigona, microstoma (neque 

 tantumodo, ad CephalozicE instar apice plicato-constricta), 

 ore subintegerrimo setulosove, facie antica — saltern instatu 

 sterili — ssepe profunde unisulca. Calyptra supera angusta. 

 Capsula oblonga bistrata, cellulis interioribus fibris semi- 

 annularibus distinctis subobsoletisve. Elateres bispiri. 

 Sporse minutulse. Bractece & terminales paucijugse, foliis 



