106 F. Cavers. 
resembles the latter in the possession of a cushion-like male 
receptacle, which he likened to that of Fegatella. Schiffner, who 
had evidently overlooked the later papers of both Gottsche and 
Leitgeb (since he says the male plant is unknown), places the genus 
in the Anacrogynous Jungermanniales, beside Pallavicinia and 
Syruphyogyna. Ruge (17) found that in the development of the 
antheridium several transverse walls appear before any longitudinal 
Monoclea Forsteri. 
Fig. 14. A., Male plant, x 1. B., Female plant, X 1. C., Female plant, 
in which three capsules are exserted, x 1. D., Ripe capsule, showing dehiscence 
by a single longitudinal slit, x 4. E., The same, later; the margins have rolled 
back, exposing the mass of spores and elaters ; X 4. 
ones appear. Campbell (2), reviewing the work of the writers 
above-mentioned, concluded, from the presence of two types of 
rhizoids, the development of the male receptacle and the antheridium, 
and his own observation that the archegonium neck has six rows of 
cells, that Monoclea should be transferred to the Marchantiales and 
placed near Targionia. The writer (3, 4), from his examination of 
