332 



M ARCHANTIACE^. 



a centro inferior, originem ducunt etiam e lateribus ex infra 

 squamis centro (vense) appropinquates. Squamis exterior, e 

 radicibus expertibus. 



Frons mascul. similis faeminieae secus centrum, papillis ele- 

 vatis vix apertis ? cum loculis totidem segregates communicant 

 ad singulam loculam, anthera solitaria. 



Involucrum longe stipitat., stipite celluloso omnino, striato, 

 e thallo inferior, originem ducens, parce squamoso-pilosa, 

 dense ad apicem. 



Involucra (3-4) cellulosa omnino extus rima (vix in valvis 

 duabus) dehiscent : unifloro vel abortu expers. 



Calyptra irregulariter lacera immota stipitem fere aequans. 



Capsula subexserta, brunnea deorsum spectans : valvis 

 pluribus, admedium fere devisa, valvis demum irregularibus. 



Cellulis endothecii oblongis, fibris distinctis transversis. 



Sporula. 



Flos, faemenea initio sesilis, squamis linearibus acuminatis 

 incumbentibus antea pluriseriatis obtect. 



In vol : tunc gemmiforma, virida carnosa, unumquodque 

 involucellum anticum sulcatum, sulca supra giving exit to the 

 stigma. 



Pistillum unum cuique involucello sub transversum, structu 

 ordinario massa cellulosa, pendula, more solito (setae futurae 

 rudiment.) cuique pistilla. 



It is this which constitutes its chief peculiarity, the simi- 

 larity to gemma is excessive, both in structure, green colour 

 and situation. Real gemmae do not, I think, exist. 



Mixed with these fronds are curious globular bodies con- 

 sisting of a hyaline thick substance in which are variously 

 twisted articulated green filaments, the growth of these fila- 

 ments is by the apex, and by the addition of globular cells, 

 one by one, hence at the apex they are moniliform, assu- 

 ming a merely articulated appearance from subsequent pres- 

 sure in the direction of their length. 



The scales underneath are oblique and are curious in their 

 not all covering radicles, because this shews that their pre- 



