126 



FLORA OE NEW ZEALAND. 



\Hejiaticce. 



pursued his studies in Hepatic*, has further led in several instances to misnomers m the collections 

 which have passed under his eyes and hands; specimens carefully examined having been returned bearing 

 other names than those under which they were published by him. These circumstances, together with the 

 great difficulty attending the study of the variable, often minute, and very generally barren species of this 

 Natural Order, must be borne in mind by those who follow the steps of the pioneers in this most incom- 

 plete department of Antarctic Botany. ; 



The arrangement followed here is very nearly that of the ' Synopsis Hepaticarum, ot trottsche, 

 Lmdenberg, and Nees von Esenbeck, m which full descriptions of many of the genera and species here 

 mentioned by name only, will be found; but for the convenience of those to whom these plants have 

 been hitherto known as Jungermannia, a short plan of the arrangement, with the most prominent characters 

 which distinguish each genus, is added.—/. I). H. Sf W. M. 



SYNOPSIS OF THE GENERA OE NEW ZEALAND HEPATIC M- 



I. Folios*. — Plants with leaves and stipules. 



A. Leaves succubous. 



* Perianth of the same substance as the leaves, 

 t Perianth terminal. 



Jungermannia ; perianth tubular ; mouth contracted. 



Plagiochila ; perianth obconic, compressed, two-lipped; plants rarely stipulate. 

 Leioscyphus ; perianth obconic, compressed, two-lipped ; stipulate. 

 Lophocolea ; perianth prismatic, 

 ff Perianth lateral. 



Chiloscyplius ; perianth campanulate. 

 Psiloclada ; perianth tubular. 

 ** Perianth partly formed out of the stem. 

 Oymnanthe ; perianth terminal. 

 Saccogyna ; perianth lateral. 



B. Leaves ineubous. 



* Perianth and calyptra free. 



f Perianth lateral. 



leaves and stipules quadripartite or dentate. 

 ; leaves entire or tridentate. 

 Micropterygium ; leaves boat-shaped. 

 |t Perianth terminal. 



hotacliis; perianth like that of Jungermannia ; leaves and stipules nearly equal. 



* * Calyptra overlaid by, and connate with, the uppermost leaves. 

 GoitscJiea ; leaves complicate, lamellate. 

 Polyotus; leaves rounded, with auricles at their ventral bases. 

 Sendttiera ; leaves and stipules deeply divided. 

 Trichocolea ; leaves and stipules divided into filiform lacinise. 



*** Perianth on the upper branches; leaves rounded, with an appressed lower lobe. 

 t Inferior lobe plane, appressed to the leaf. 



Radula; perianth deplanate ; stipules none ; plants yellowish- green. 

 Madotheca ; perianth contracted at the mouth ; plants large, deep green, stipulate. 

 Lejeurda; perianth various ; mouth contracted ; stipules rounded, entire, dentate, or bifid ; plants 

 often pale. 



