NOTES ON A COLLECTION 



OF 



HEPATICAE FROM BELGIAN CONGO 



(ex herb. R. Naveau, Antwerp.) 



BY 



Wm. My. PEARSON, M. Se. A. L. S. ('). 



MiTTEX and Stephani are the onlv two authorities who hâve 

 detennined Hepaticae from West Africa; both hâve only given 

 short descriptions of their new species, and with the most careiul 

 studv of their work, it is difficult to arrive at a satisfactory 

 conclusion. 



I hâve had the opportunity of studying some of their original 

 spécimens, throngh the kindness of the authorities at Kew, the 

 British and Manchester Muséums, and with such species I am 

 satisfied that mv déterminations are correct. 



If any of the species I hâve described as new, prove to hâve been 

 alreadv published, mv notes and drawings will enable future 

 students te be able to recognise them without nnich difficulty. 



As an ardent if inept student of Exotic Hepaticae I would 

 suggest, that authorities should emulate the example of Spruce 

 and Evans, whose full and lucid descriptions enable a student to 

 identify a species with moderate certainty. 



In the foUowing descriptions, I hâve used the terms denoting 

 size of plant and cells adopted by Dr. Spruce in his works. 



Tvpe spécimens of the Collection hâve been disposed in the 

 Manchester Muséum. 



(') Lecture held during the Biological session of the « XX* VI. Xatuur-, Wis- en Genees- 

 kundig Congres t, August 1921, Mechlin (Belgium). — Reprinted from Natuurwet. 

 Tijdschr., 1922, IV, 5-6, pp. 1 18-143. 



Revue Zoot. Afr., X. — Sitp/i/éiiunt Botanique. 6 



