XM 



MAHCIIANTlACU.lt. 



PI. LXVIII. Fig. I. 



Th€ septa as seen in the UCtlOTI of the Frond, arc oj R 

 dilVrnmt n it uit* from tbl septa of Marchantia, in which these 

 Aft of the name tissue as the reproduct i\ e thallus. In this 

 they merely consist of irregular aggregations from expansion 

 4 » 1' the frond, anil of the iterating tissue. If tins he a correct 

 observation the\ do not i \iM Id younc fronds. 



PUifUthum** 91 LXVUL Fig, 11 



Frondes dioloa immixtre provenientes. 

 PI An tin owipitoMii 



From I spathuluto-oblonga repens, apiee hiloha in lohorum 

 llnu ) In fronde fanninea gf mma llorifera. Textura e duplici 

 systemate, superior euticula distiuctissma, poris perforata, ilo- 



u.ii.t c Iaxi toll oontlnui cellulari globulin viiidei continente. 



Cuticula supera alha, crassa stomatosa. 



Infer* tenuis, moUllioi itro«purpureOj ultra supera promts 



nens, margin versus integra, costtts versus disrupta (radicilms) 

 in aquamis obliquia. 



Inferior, omnino a virid, tela densior OMMOrtllH cutem ver- 

 sus. Superficies supera areolata, areolis centro-stomatiferia ; 

 infra sipiamas, ohliipiissiuue radicelhe laterales ohtegentes, plus 

 minus sanguineo-tecUe, these seales projecting hcyond the 

 frond give the margin a blood purple colour. 



Anthene secu9 centrum dispositas immerara In loeulis, dis» 

 tinctis e thallo Inferior! intus et extua dehiscentes, poro pa- 

 pUllforml ereeto ; not seen for the same reasons a9 in fomer 

 species. 



In all, the aerating tissue exists between the cuticle and 

 the upper surface of the andiiecium, and it is only over this 

 that the green tissue is interrupted. 



* This was at first supposed from the transverse laceration of the ca- 

 Ivptra fa bt u hlebouillLtt but the drawing is (together with Fig. 1. of 

 the same Hate) numbered !■';>, in the proceeding list, p. 2D7. 



