Professor Lindberg's terms for the position of the reproductive organs 

 are also adopted, as being more precise than those ordinarily used. Kis 

 definition of these is as follows : 



A. GAMOECIA MONOICUM. 

 ( <? and ? on the same plant.) 



1. Synoicous = S and ? mixed together in the same inflorescence 



(Perichatinm}. Ex. Bryum bimnm. 



2. Paroicous = 3 and ? in the same inflorescence, $ naked and 



axillary to the lower bracts, ? covered by the uppermost 

 bracts. Ex. Bryum ntttans. 



3. Autoicous = $ and ? each in a separate inflorescence (andrcecitim 



and perichatium}. Ex. By. uliginosum. 



4. Heteroicous = synoicous + autoicous. Ex. Br. pendulum. 



9 



B. GAM. DIOICUM. 

 (<? and ? on different plants.) 



5. Dioicous = androecium and perichaetium on different plants. Ex. 



BY. capillave. 



C. GAM. POLYOICUM. 

 (<? and ? both on the same plant and on different plants). 



6. Polyoicous, under three forms: 



a. Synoicous + dioicous. Ex. Br. cnidum. 



b. Autoicous + dioicous. Ex. Dicranum scoparitmi. 



c. Heteroicous + dioicous. Ex. Br. pallescens. 



To the same kind friend I am indebted for many suggestions and 

 specimens, and also to various correspondents at home, to whom as also 

 to Mr. Baker, at Kew, and to Mr. Carruthers at the British Museum, 

 for greatly facilitating my studies, and to Mr. Blair, F.L.S., for his careful 

 reproduction of the drawings I here offer my warmest thanks, and trust 

 that by their valuable assistance the work will prove acceptable to all 

 students in Bryology. 



