Feb., 1901] Kellerman — Botanical Literature. 



65 



Plate II., Polytrichum or Hair-cap Moss. 



Figs, a (dry), b (moist), c (leaf), d (capsule) and fare P. commune 



Fig. e, capsule of P. ohioense; 



Figs- g, h and p, P. piliferum; 



Figs, o and o', P. juniperinum. 



