( 16 ) 



n. — Ood-onia Dmrt. Tab. i, f. 2. 



Codonia (pro parle) Dmrt. Comm. bot., p. \\\ (1822). 

 Diplolaenae sp. Nees Eur. Leberm., III, p. 352 (1838). 

 Petalophylli sp. Gottsche Syn. hep., p. ^7\ (1846). 



Pericliaetium colesula connatum. 



Colesula quadrato-campanulata ore infundibuliformi 

 undulato, subdentato. 



Capsula coriacea, univalvis, ultra medium in segmentis 

 quatuor irrigularibus fissa , segmentis cancellatis apice 

 lobatis. 



Elateres vagi, geminati, circumdati, decidui. 



Codonia, a me nominata ex vcrbo graecos Kw^wv, campanula, proptcr 

 (iguram colesulac. 



Petalophylli generis diagnosis e P. Prcssii a Cl. Gottsche desumpta, nostro 

 nuiio modo convenit, quapropter Codoniae, antiquum nomen istae tribui 

 applicatum, denuo hic salutavimus. Codonia ab omnibus capsula can- 

 cellata differl. 



1. Codonia Ralfsii Dmt. — C. frondihus radiatim dis- 

 positis, foliis approximatis, Hberis, latis, limbo rotundato. 



? Codonia pusilla /3 ruficapilla Dmrt. Syll. Jung., p. 50. 

 Jungermannia hybernica var. Wilson in Engl. Bot., t. 2750, fig. IS et 16. 

 Diplolaena Lyellii var. 5 lamellata Nees Eur. Leberm., III, p. MS et 352. 

 Jungermannia Ralfsii Wilson in Engl. Bot. suppl., t. 287-4.' 

 Petalophyllum Ralfsii Gottsche in G. L. ct JV. Syn. hep., p. -472; Rabenh. 

 Hep. Eur. exs., n. 448. 



Habitat in Hibernia, in insula Anglesea (VVilson), in Cornwall prope 

 Penzancc (Ralfs) et Hayle (W. Curnow !), in Hibernia prope Dublin 

 (D. Moore !). 



Frons rcpens, late obovata, furcata, ramis radiatem dispositis, superne 

 foliosis, nervo infcrne prominulo. Capsula sphacrica. Sporac reticulatae. 



Plantamhanc rarissimam fructu donalam mccum benignc communicavit 

 amicus clarissimus D. Moore. 



