184 KANSAS ACADEMY OF SCIENCE. 



PLATE V. 



(a) Sterile plant of Leucobryum vulgare Hampe, x 2. (b) A leaf, x 10. (c) 

 Cells at edge of leaf, x 500. (d) Outer layer of leaf cells, x 500. (e) Inner leaf 

 cells, showing water pores and chlorophyl grains, x 500. (f) Cross section of 

 the leaf, (g) Cross section of one-half of the leaf, showing the outer cells with 

 their water pores and the inner narrow chlorophyl cells between, x 500. 



PLATE VI. 



(a) Ceratodon purpureus Brid., x 6, showing the fruit with the cucullate 

 calyptra, and conical lid. (b) The same dry, showing the angular shape of 

 the capsule, with twisted seta and curled leaves, x 6. (c) Stem leaf near 

 ap'ex. (d) Basal cells, (e) Apical cells, (f) Perichaetial leaf, (g) Basal 

 cells, (h) Apical cells, (i) Two teeth of the peristome, showing papillose 

 surface, with upper edge of the capsule and a portion of the annulus. (j) Por- 

 tion of the annulus. (k) Spores equal to 8-12 mmm. (1) Operculum, (m) 

 Cells of the edge of operculum, (n) Plant of C. purpureus, from Switzerland. 



PLATE VII. 



(a) Leptotrichum pallidum Hampe, x 3. (b) Dry capsule, showing ridges 

 and slightly twisted peristome and seta, (c) Verruculose spores, diameter 

 18-20 mmm. x 500. (d) Obliquely rostrate operculum, (e) A portion of the 

 peristome capsule, and annulus, showing the papillae on the slender teeth. 



(f) Stem leaf, x 15. (g) Basal cells, x 500. (h) Apical cells, x 500. (i) Outer 

 perigonal leaf, x 100. (j) Middle cells, x 500. (k) Apex of same, x 500. (1) 

 Inner perigonal leaf, x 100. (m) Basal cells, x 500. (n) Awn point, x 500. (o) 

 Young fruit and plant of same, showing male flowers in axils of leaves, x 6. 



PLATE VIII. 



(a) Trichostomum tophaceum Brid., x 5, from California, (b) Dry capsule, 

 showing lines and twisted seta, x 35. (c) Stem leaf, (d) Basal cells, x 500. 

 (e) Apical cells, x 500. (f) A portion of peristome and eage of capsule, show- 

 ing nodular and irregular forms of the teeth, with the large papillae, x 500. 



(g) The long rostellate operculum, x 35. (h) Spores, showing oil drops, di- 

 ameter equal to 9-13 mmm., x 200. 



