8 ICONES MUSCORUM. 



Hab. Tabic Mountain, North Carolina, Gray. Tallulah 

 Falls, Georgia, Lesquereux. Quaker Bridge, New Jersey, 

 James, Austin. 



Sphagnum molle in general aspect resembles S. molluscum. 

 The two differ however as follows: — the chlorophyllose cells of 

 the ramuline leaves of both species are triangular in cross- 

 section : in the first they are situated at the concave, and in 

 the second at the convex surface of the leaf. Furthermore, 

 there is a striking difference in their perichsetial leaves ; those 

 of S. molle being entirely destitute of fibrillse, and, in their 

 lower half, composed wholly of homomorphous cells. 



TAB. 4. — Sphagnum molle. 



1. Planta? fern, et masc. naturali magnitudine. 



2. Planta juvenilis e spora cnata. 



3. Pars caulis cum foliis. 



4. Sectio transversalis caulis. 



5. Folium ramulinum. 



6. Pars ramuli, cellulas majores corticales apice recurvo pertusos ostendens. 



7. Sectio transversalis ramuli cum folii basi. 



8. Areolatio folii ramulini. 



9. 10. Sectio transversalis folii ramulini. 



11. Capsula, pseudopodium, et folia perichsatialia. 



12. Folium pcricliR'tii. 



13. 14, 15. Areolatio apicalis media et basilaris ejusdem. 



16. Hamulus erectus antheridiophorus. 



17. Apex cjusdem. 



18. Antheridium et folium perigoniale. 



1 9. Antheridium cum pedicello paraphysibus ramosis obsito. 



20. Paraphysea ramosse. 



