PLANT WORLD— Vol. I 



EXPLANATION OF FIGURES. 



I — Plants, natural size. 2 — Fertile stem, anterior view. 3 — Sterile stem, anterior view. 

 4— Sterile stem, posterior view. 5— Cells from middle of leaf. 6, 7— Perichastial bracts. 8— Brac- 

 teole. 9,10 — Pengonial bracts. 11 — Corresponding underleaf. 12, 13— Perichastial bracts. 14— Brac- 

 teole. Figures 6-11 from the same inflorescence, figures 12-14 from another infloresence. 

 IS— Transverse section of perianth. 16— Capsule, still intact, with part of stalk. 17— Capsule, 

 dry, split into its four valves and commencing to shrivel. 18— Cells from capsule-wall, outermost 

 layer, ig — Cells from capsule-wall, innermost layer. 20 — Spores. 21 — Elater. Figures 2-21 

 variously magnified. 



All the figures are drawn from specimens collected by the writer in the vicinity of New 

 Haven, Connecticut. 



