280 Kansas Academy of Science. 



Order II. JUNGERMANNIALES: The Scale Mosses. 



Liverwort-like plants, with a central prostrate stem and two lateral rows 

 of leaves, usually crowded and overlapping, with sometimes a 

 third row of smaller scales on the under side. Antheridia and 

 archegonia may be on different plants (dioecious), on different 

 branches of the same plant (monoecious), or mingled in the same 

 flowers (synoecious). 



Family 4. Jungermanniace^: Scale-moss Family. 



13. Frullania virginica Lehmann. On bark of trees, E. K. ; fre- 



quent. 



14. Frullania squarrosa Nees. Rocks and bark of trees, E. Kw; 



frequent. (S) 



15. Lejeunea clypeata Sull. Rocks and base of trees, E. K. ; 



common. (S) 



16. Ptilidium ciliare Nees. Rotten log and stumps; common. (S) 



17. Lophocolea minor Nees. Limy soil and limestone rocks, E. K.; 



occasional. 



18. Lophocolea heterophylla Nees. Rotten logs in shady woods, 



E. K. ; occasional. (S) 



19. Chiloscyphus adscendens Hooker & Wilson. Rotten logs; 



rather common. (S) 



20. Chiloscyphus polyanthos Corda. Damp ground among moss 



or on rotten logs. 



21. Jungermannia schraderi Martius. On the ground and on 



rotten logs. 



22. Fossombronia angulosa Raddi. Salt marshes, C. K. ; frequent. 



Early spring. (S) 



23. Pallavicinia lyellii S. F. Gray. Among moss on damp rocks, 



Franklin county. (S) 



24. Pellia calycina Nees. Wet shales and limestone; occasional. 



25. Aneura latifrons Lindberg. On rotten logs; frequent. 



Class II. BRYINEAE (Musci.) 

 Mosses. 



Plant-body (gametophyte) a leafy stem, usually erect, developing root- 

 hairs (rhizoids) below and leaves above at right angles to the stem. Leaves 

 consist of a single layer of cells, usually with a delicate midnerve. The 

 round of life in the mosses begins with the spore formed in the capsule. 

 From the spore is developed a protonema, which is a filamentous, pluricel- 

 lular, usually chlorophyllose, always nonsexual, structure, upon which 

 arises by budding the oophore, which is the ordinary moss as we see it, and 

 which bears, on its summit or in its axils, the flowers and reproductive 

 bodies, the antheridia and archegonia, from which latter arise the capsules 

 of spores (sporophores) , usually on long stalks. The flowers may be syn- 

 oecious, monoecious, or dicecious. 



Mosses are not abundant in Kansas; some of the orders are not repre- 

 sented at all. There are only two orders, Phaseales and Bryales, usually 

 regarded as belonging to the one order, Bryales. 



