62 Odontocliisnia — Cephaloziella 



tuclinalia, subcontigua, patula iDlaniuscula, obcordato -rotunda obova- 

 tave; cellules miuutulffi (1/60— 1/50 mm^ quadrato-hexagonse leptodermes sub- 

 opacas verruculosEe. Foliola 0. AndrcEcia XDostica amentiformia julacea, 

 sem^Der fere ramosa, axi primaria sola masciila; hractece prox^rife foliis 

 diiplo fere minores orbiculatge concavfe mtegrge monandree ; ramuli alii 

 foeminei, alii neutri quorum bractecB steriles elongato-ohlonrja emarginatcB 

 bifiduleve canaliculato-equitantes. Flores vel ramulo brevi cauligeno 

 constantes, vel ad spieam cf axillares, nempe ramulum e bractese mas- 

 culffi axilla ortum sistentes; hractecs subbijugse, foliis caulinis gequilongae 

 recurvo-patulffi ovales breviter bifidss — ^subinde 3 — 4-fid8e — lobis aciitis, 

 cum bracteola lanceolata Integra subconnatse. 



Hah. in imis truncis fl Casiquiari inundatis.- — Stirps singularis, facie 

 foliisque fere Odont. Sioliagni minoris, florescentia monoica — interdum 

 quasi gynandra — defectu flagellorum cset. car. diversa. 



Other plants that have been referred to this group are probably either forms of 

 one or other of the two common species, such as Sphagiioecetis stolonifera Lindenb. 

 et G., which from Gottsche's detailed description in ' Mexic. Leverm.,'can hardly be 

 more than -a variety of O. denudatiun ; or else they really belong to some other genus. 

 Of this latter category is (apparentty) Sphagiioecetis variabilis L. et G. Syn. Hep. 688, 

 also a Mexican plant, which departs essentially from the generic character in having 

 several {comblura) antheridia together in the repando-dentate, and at the apex in- 

 cised, bracts of its minute male catkins. But if the flowers are really monandrous, 

 (and not oligandrous, as the description seems to indicate) then the remaining char- 

 acters are not incompatible with a small Odontoschisma; coming very near to our 

 Cephalozia (Odont.) obcordatn. 



Subgenus YIII. CEPHALOZIELLA . 



PlantcB pusillse minutseve, ssepe supra muscos, vel alias 

 hepaticas, csespite dense sublurido reptantes. Caulis pro 

 plantula ssepissime yalidus, basi in plerisque subrhizoma- 

 tosus, flagellis autem orbatus ; cellules corticales 10 — 20- 

 seriatce ab internis hand diverscB. Fo/ia inferiora dissita sub- 

 oblique inserta (succuba); superiora magis conferta, fere vel 

 exacte transversa, longitudine (*! — -IS""™) caulis latitudinem 

 raro excedentia, persfepe cuneata ad vel ultra ^ bifida, 

 carinata, segmentis vel subcomplicatis vel divergentibus, 

 integerrima, vel in aliis sp. subdenticulata, raio spinulosa ; 



