BY R. A. BASTOW, F.L.S. 215 



KEY TO GENERA. 



The arrangement of the Hepaticas of New Zealand by Mr. 

 Mitten, in Hooker's Handbook of the Flora of that Colony, 

 is very useful in aiding the student to determine the genera, 

 and the following Key is an illustrated adaptation of that 

 arrangement to the Hepaticce of Tasmania. 



A.—FOLIOSiE.— Leaves distinct. (PI. ii., f. 1, 2, 3.) 



* Leaves euccubous ; base with the lowest angle on the upper side of the 

 stem. (PI. iii,, f. 1,2.) 



(a.) Perianth, leafy. (Pis. iv.-xv.) 



1. Fruit terminal. 



1. Plagiochila. 



Perianth compressed ; stems erect or ascending ; no 

 stipules. (PI. iv., v.) 



2. Leioscyphus. 



Perianth compressed ; stems procumbent, stipulate. 

 (PI. vi.) 



3. Temnoma. 



Perianth above trigonous, truncate. (PI. vi.) 



4. LOPHOCOLEA. 



Perianth triquetrous ; angles often alate ;_ mouth three- 

 lipped, closed; stems procumbent, stipulate. (PI. 

 vii., viii., ix.) 



5. Trigonanthu8. 



Perianth trigonous ; mouth contracted ; stems procum- 

 bent, stipulate near the fruit. (PI. ix.) 



