T. H. BUFFHAM ON ANTHERIDIA. 306 



Fig. 27. Ditto. Part of ditto x 400. 



„ 28. Sydrolapathum sanguineum. — Group of male 



leaflets removed. Nat. size. 

 „ 29. Ditto. Portion of surface and border x 50. 

 „ 30. Ditto. Part of sec. x 400. 

 „ 31. Bonnemaisonia asparagoides . — Antheridium from 



monoecious plant x 400. 

 „ 32. Odonthalia dentata. — Fragment with antheridia in 



situ. N'at. size. 

 „ 33. Ditto. Male leaflet x 10. 

 „ 34. Ditto. Portion of surface near edge of ditto 



x 100. 

 „ 35. Ditto. Trans, sec. of leaflet x 50. 

 „ 36. Ditto. Portion of ditto x 400. 

 „ 37. Halarachnion ligulatum. — Filamentous branches 



which bear antheridia. Nat. size. 

 „ 38. Ditto. Surface with two antheridia x 400. 

 „ 39. Ditto. Sec. of ditto x 400. 

 „ 40. Harveyella mirahilis. — Cystocarp x 10. 

 „ 41. Ditto. Tetrasporic plant x 10. 

 „ 42. Ditto. Cruciate tetraspores from ditto x 200. 

 ,, 43. Ahnfeldtia plicata. — Portion of vert. sec. of 



nemathecium with spores x 400. 

 5, 44. Ditto. Upper portion of a tube containing a 



spore X 800. 



