I92 BOTANICAL GAZETTE. [August, 



Jungermannia. Jungermannia was first established by Rap- 

 pius 6 , and being adopted by Linnaeus and all subsequent 

 writers, stands to-day as the typical genus of the order. 

 Cavendishia was a name given for a group of plants which 

 had been designated as Porella by Dillenius 7 , and which, 

 singularly enough, had been placed by Linnaeus with the 

 Musci ; the genus in question has latterly been more com- 

 monly known under the name of Madotheca. Of the other 

 genera Herverus, Papa, Maurocenius and Salviatus had 

 already been named by Raddi 8 as Metzgeria, Pellia, Fos- 

 sombronia and Frullania, respectively. Pandulphinus had 

 also been named Lejeunea by Madamoiselle Libert a year 

 before 9 . Several of Gray's genera, with the termination prop- 

 erly changed to the feminine form, are now adopted by most 

 hepaticologists ; among these are Pallavicinia, Mylia, Nardia, 

 Bazzania, Scalia, Herberta, and Kantia 10 . Cesia and Lip- 

 pia must yield to names previously given to genera of flow- 

 ering plants. This leaves two genera, Riccardia and Mar- 

 tinellia, concerning which there is considerable difference of 

 opinion, the names being adopted by some and rejected by 

 others ; a statement of the question of their adoption, which 

 presents some interesting problems bearing on the question 

 of priority, will be stated below. 



In Dumortier's work, which covers a w T ide range of bo- 

 tanical matter, chapitre cinquieme is entitled Essai (Tune 

 Mcmog7'afhie^des Jongermannes . The essential part of this 

 essay of fourteen pages is a division of the pre-Linnaean 

 genus Jungermania into nineteen genera, as follows: Co- 

 donia, Madotheca, Lejeunea, Phragmicoma, Jubula. Rad- 

 ula, Mesophylla, Jungermania, Thricbrolea, Saccogyna, 

 Cincinnulus, Schisma, Marsupella, Mniopsis, Dikuna, Fasci- 

 ola, Aneura, Scopulina, and Blasia, all of which, except 

 Jungermania, Lejeunea and Blasia. were new. As Dumort- 

 ier was ignorant of the work of either Raddi in Italy or 

 Gray in England, he naturally duplicated several genera. 

 Thus Madotheca = Porella Diel. Fasciola, Codonia and 

 Scopulina are, respectively, Metzgeria, Fossombronia and 

 Pellia of Raddi ; while Dikima, Mesophylla, Mniopsis, Schis- 

 ma and Cincinnulus are the equivalents of Pallavicinia, Nar- 

 dia, Scalia, Herberta, and Kantia of Gray. Jubula, although 



6 Flora Jenen P, 2d ed., 1726. 

 T Historia Muscorum, 1741. 

 8 Loc. cit. 



Hn Ann. gen. 8C. Phyv. V, 372 (1820). 



™A contribution of Interest on Gray's genora, by Dr. Carrinston, may be found in vol- 

 ume X of the Transactions of the Botanical Society, Edinburgh (1870). 



