J UNGERMANNIA 



323 



of seta naked, as it projects beyond the base of the Pistillum or 

 Calyptra. 



h. Segment laciniate of involucrum, 



i Ripe Capsule dehisced, and nearly empty. 



j. Portion of the same, inner surface shews no spiral cells. 



k. h. Sporule: respectively 1-250 and 1-650. 



l % Elatere one end 1-250. 



m. Apex of the same 1-650. 



n. Long section through the central line of lobe of frond and 

 through the involucrum. Perianth : Calyptra in situ : perforated at 

 apex by seta. 



o. Apex of a seta after fall of upper part with capsule. 

 GYMNOMITRIUM . 



Frons parva : inparte humefusa carnosa, crassa, infra 

 radices brunnese supra divisiones, hae insertiones valde obli- 

 quae, imbricatae, undulatae crispatae. 



Calytra non soluta, lacera apice. 



Pedicellus Capsulae brevis. 



Capsula , irregulariter lobata demum quasi 



solubilis, cellulis parietis interioris rotundata, fibris erectis, 

 discretis. 



Elateres. 



Sporula. 



On banks under rocks in shady places common. 

 Inflorescentia centralis ? Vel. teminalis ? 



