VI. 



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 5 on the same plant.) 



1. Synoicous — $ and ? mixed together in the same inflorescence 



[perichatmm). Ex. Bryiim bimum. 



2. Paroicous = ^ and 2 in the same inflorescence, 3' naked and 



axillary to the lower bracts, ? covered by the uppermost 

 bracts. Ex. Bryum nutans. 



3. Autoicous = ,y and 5 each in a separate inflorescence [andrcecium 



and perickcetium). Ex. Br. uliginosum. 



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



B. Gam. dioicum. 



{$ and ? on different plants.) 



5. Dioicous = androecium and periclisetium on difierent plants. Ex. 



Br. capillare. 



C. Gam. polyoicum. 



( 3* and 2 both on the same plant and on diiferent plants). 



6. Polyoicous, under three forms : — 



a. Synoicous + dioicous. Ex. Br. crudum. 



b. Autoicous + dioicous. Ex. Dicranum scoparium. 



c. Heteroicous + dioicous. Ex. Br. palkscens. 



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. 



