SYNOPSIS OF ORDERS AND GENERA. 49 



Genus 19. Myurella. — Intermediate cilia binate; stem cy- 

 lindrical ; leaves closely imbricated, papillose ; leaf-cells mi- 

 nute, chlorophyllous. 



Genus 20. Platydictya. — Intermediate cilia present or ab- 

 sent ; stem confervoid ; leaves loosely set ; leaf-cells large. 



Genus 21. Philoscia. — Intermediate cilia wanting ; stem 

 succulent; leaves subbifarious ; leaf-cells narrow, elongated. 



Genus 22. Myrinia. — Inner peristome solid, dark ; interme- 

 diate cilia wanting; leaves even; leaf-cells large, rhomboid. 



Genus 23. Pterigynandrum. — Inner peristome rudimentary; 

 veil naked ; leaves papillose ; upper leaf-cells rhomboid ; male 

 and female fruit axillary. 



Genus 24. Antitrichia. — Fruitstalk short, curved ; inner 

 peristome of sixteen perforated teeth adhering to the outer ; 

 cilia wanting ; leaf-cells minute ; stems procumbent, pinnate. 



Genus 25. Thamnium. — Inner peristome with intermediate 

 cilia ; upper leaf-cells elliptic ; stem naked below, branched 

 above; branches more or less two-ranked. 



Genus 26. Leucodon. — Peristome erect, single, or with very 

 obscure traces of an inner membrane ; ring fragmentary ; leaf- 

 cells punctiform. 



Genus 27. Anomodon. — Peristome double; inner of sixteen 

 short fugacious processes ; leaf-cells very minute, opaque. 



Genus 28. Pterogonium. — Inner peristome membranous, 

 half as long as the outer teeth, with rudimentary cilia ; veil 

 pilose ; leaves papillose ; leaf-cells elliptic. 



Genus 29. Leskea. — Peristome double, outer teeth staple- 

 bent when dry ; inner peristome with obscure intermediate 

 cilia ; leaves papillose ; leaf-cells very minute, chlorophyllous. 



Genus 30. Leptodon. — Peristome double; inner membra- 

 nous, divided above into short irregular teeth; veil pilose; 

 leaf-cells punctiform. 



