1886.] 



HEPATICAE NATÅLENSES. 



17 



sometimes arcuate, rootlets very copious, long, white. 

 Leaves sub-horizoutall}^ iiiserted, closely imbricated secuud or 

 spreading open, plane or slightly concave, subquadrate or 

 ovate, rounded, apex entire or retuse; cells large, thick, 

 roimded; trigones very distinct. Underleaves large, subulate 

 or bifid. Bracts oval, emarginate, sinus more or less oblique, 

 bracteole longer twisted, lanceolate, bifid, segments and 

 sinus acute. Innermost bracts smaller, extremely delicate, 

 broadly oval, at apex dentate. Pistillidia oblong, very 

 numerous, closely packed together, from 40 to 60. Plants 

 J with leaves complicate, upper lobe small embracing the 

 antheridia. 



Measurements. Stems 74 to V2 iuch, .15 to .3 mm diam., 

 leaves .9 mm long X .7 mm broad, .8 X .7 cells .03 mm, 

 .04 mm, underleaves .35 mm long X .13 mm broad .35 mm 

 X .11 mm, underleaf from branch .2 mm long X .1 mm 

 broad, bracts 1.1 mm long X .6 mm broad seg. .r^j mm, 

 .9 mm X .7 mm, bracteole 1.7 mm long X 1. mm broad, 

 seg. 3. mm, involucral bracts .8 mm long X .7 mm broad 

 teeth .1 mm, pistillidia .15 mm long X -05 mm thick, J 

 leaf .7 mm long* X .5 mm broad, upper lobe .3 mm long X 

 .2 mm broad. 



Hab. On banks by the river near Umpumulo. 



Obs. The specimens from Natal fully agree with origi- 

 nal ones from the East Indies (Herb. Hook.). 



A peculiarity of the spe eies is the extraordinary num- 

 ber of the pistillidia, I counted in 3 involucres 40, 50 and 

 even 60. 



Description of Tab. XI. Fig. 1. Plants nat. size. 2. 

 ? plant X 24. 3. Portion of stem with leaves X 24. 4. 

 Portion of J stem X 24 (Herb. Hook.). 5. Cross-section 

 of stem X 24. 6, 7. Leaves X 24. 8. Portion of leaf X 

 290. 9, 10. Underleaves X 85. 11, 12, 13. Underleaves 

 from branches X 85. 14. Bracts and bracteole X 24. 15. 

 Innermost bract x 24. 16. Portion of innermost bract X 

 85. 17. Pistillidia X 85. 



Vil-Selsk. Forh. 1886. No, 3. 2 



