Mr. Dickson'j Obfervallons on the Genus of Porella, tic. 239 



leaves, fo far as they are reprefented, are placed in the fame manner 

 as in the annexed figure. 

 I fhall now fubjoin a fhort defcription of it under the name of 



JUNGERMANNIA /o;r/A7. Tab. 20. Fig. I. 



J. furcuhs pinnatis ramofis medio floriferis, floribus fubfeflilibus, 

 vaginis obovatis inflatis. 

 Habitat in Pennfylvania. 



Descr. Surculi decumbentes ramofi. Folia alterna, obovata, 

 perforata, pcUucida, fubtus auriculata. Vagina fubpedunculata in- 

 flata, exiguis aliquot ad bafin fquamis cin6ta. Seta breviffima. 



The Splachnum which I received at the fame time with the above, 

 when compared with Dillenius's fpecimen, proved to be the Sphag- 

 num figured in Tab. 85. f. 15. ; — the figure is remarkably ftifF. 

 This is made a Phafcum by Linnasus ; but with equal impropriety, 

 it being a true Splachnum. 



Splachnum caukfcens. Tab. 20. Fig. 2. 



Spl. caulefcens, foliis linearibus apice fetaceis. 

 Habitat in Pennfylvania.. 



Descr. Cauks filiformes erefti ; folia alterna, inflexa, reticulatay. 

 pellucida ; capfula eredta cylindrica. 



Explanation of Tab. 20. 



Fig. I. A Jungermannia porella ; natural fize. 



B capfule magnified. 



C • — ^— part of the plant magnified.. 



Fig. 2. A Splachnum caulefcens; natural fize. 



B magnified. 



C ______ a leaf magnified. 



XXII. De- 



