218 The Botanical Gazette. [July, 
Noteworthy systematic and distributional researches. 
Recent work in systematic hepaticology. 
For a long series of years the systematic study of Hepatice 
seemed to be held in abeyance to the \settlement of various 
morphological problems, and the earlier activity of Nees von 
Esenbeck, Gottsche, Lindenberg, De Notaris and Sande- 
Lacoste on the systematic side came to a close midway in the 
fifties and was revived only by a few descriptive papers by 
Mitten in the sixties. Starting with the period of Hofmeister 
and Gronland in the fifties the study of the morphology and 
development of the group culminated after the preliminary 
investigations of Kny, Kienitz-Gerloff and Leitgeb in the 
masterpiece of the latter in 1881.‘ Commencing in the 
seventies and coming down to the present, some of the best 
descriptive work among the Hepatica has been accomplished 
largely by representatives of four European countries : Spruce, 
Pearson and Mitten of England, Lindberg (now deceased) of 
Finland, Massalongo and De Notaris of Italy and Stephani in 
Germany. The last decade especially has been prolific in new 
forms and the recorded number? of Hepatics in Synopsis 
Hepaticarum (1844) has been nearly doubled. 
pruce, whose masterpiece on the Hepatice of the Amazon 
and Andes, is well known, has described recently? thirty-four 
American species mostly from South America, three only 
being from Mexico. Jackand Stephani have described 18 new 
Species from Peru and the United States of Columbia. 
Stephani has described two Hepatic from North America 
which were collected by Dr. Julius Réll, besides the Lejeuneas 
described in the June GAZETTE. d 
Siatic Hepatice have been described by Lindberg oe 
Arnell,* who enumerate all the known species of Asiatic ge 
(96) three of which are new; and by Mitten’ who enumerate 
- : z : z, 1874-81. 
- sean ch pie ie Sr ar eee Botanik ne 
curiously estimates the known species at 1300. The number will prove 
not far from 3000. : 
® Hepatice Nové Americans tropice et alie, Bull. de la S 
France, xxxvr, Pp. Cxxxix—ccvi. 
* Hepatic Wallisianze. Hedwigia, xxx1, 11-27 (1892). - on) and 
* Bot. Centralb. xiv, 203—4 (1891): Marchantia Oregonensis (Ores! 
Porella Roellii (Washington). 
§ Musci Asie Borealis, Kongl. Svenska Vet.-Akad. Handl. xxi, Labs 
n the species of Musci and Hepatice recorded from Japan- 
- Botany, ut, part 3, (1891). 
oc. Bot. 4 
(1389). 
Lino. 
7 
