188 KANSAS ACADEMY OF SCIENCE. 



PLATE XIII. 



(a) Physcomitrium Kellermanii Mrs. Britton, xl. (b) Same, x 10. (c) Oper- 

 culum, X 10. (d) Base of seta, showing the vaginule, x 350. (e) Papillose 

 spores, diameter equivalent to 25-30 mmm. (f) Calyptra inverted, (g) Leaf, 

 x 35. (h) Apex of leaf, showing serrulate edge and apex, with excurrent costa, 

 X 100. (i) Basal cells, x 100. (j) A portion of the annulus and capsule, show- 

 ing transversely elongated cells, (k) Leaf cells from base, x 500. (1) Cells 

 from Apex of leaf, x 500. (m) Part of capsule, showing stomata cells. 



PLATE XIV. 



(a) Funaria hygrometrica Sibth., x 8, showing the incurved peristome, (b) 

 Dry plant of the same, x 10. (c) Young capsule, with calyptra, x 12. (d) 

 Comal leaf, (e) Basal cells, (f) Apical cells, showing chlorophyl grains, (g) 

 Operculum, showing thickened rim and spiral lines, (h) Side view, showing 

 mamillate top. (i) Annulus. (j) Spores, diameter equivalent to 18-23 mmm. 

 (k) Rim of lid, much magnified, (n) Base of seta, with undeveloped female 

 flowers and paraphyses. (o) Archegonium. (p) Part of the outer and inner 

 peristome, showing one tooth of each. 



PLATE XV. 



(a) Bartramia pomiformis Hedw., from Iowa, x 5. (b) Dry capsule with 

 seta, x 15. (c) Operculum, (d) Leaf showing areolation, and serrate excur- 

 rent costa. (e) Basal cells, (f) Cells near apex, (g) Part of peristome and 

 upper part of capsule, showing the projecting membrane which bears the 

 peristome, also the divisural line on two teeth, with two cilia dividing each 

 segment, (h) Papillose spores, diameter equivalent to 98-23 mmm. 



PLATE XVI. 



(a) Philonotis Muhlenbergii Brid., x 2, from Massachusetts, (b) Dry cap- 

 sule, x 5. (c) Stem leaf, x 50. (d) Basal cells, x 500. (e) Apical cells, x 500. 

 (f) Perichaetial leaf, x 50. (g) Branch leaf, x 50. (h) Basal cells, x 500. (i) 

 Part of edge near apex, showing cells, x 500. (j) Part of inner and outer 

 peristome, (k) Spores, diameter equivalent to 22 mmm., x 500. 



