Our plant is the only representative at present known, within our limits, of Macromitrium, mostly a tropical and subtropical genus, abounding in species.
Since the engraving of Plate 37, we find that C. Müller (Bot. Zeit. 1862, p. 361) considers the Georgian Moss to be different from M. Dregei, Hornsch., and proposes for it the name of M. Sullivantii.
TAB. 37.—Macromitrium Dregei.
1. Plantæ naturali magnitudine.
2. Ramus fructifer.
3. 4. Folia.
5, 6. Areolatio folii.
7. Sectiones transversales ejusdem.
8. Capsula deoperculata.
9. Operculum.
10. Segmentum capsular peristomium annulare exhibens.
11. Perichætialia, vaginula pilosa, et pedieelli pars.
12. Flos masculus.
13. Perigoniale externum.
14. Idem internum cum antheridiis et paraphysibus.
15. Antheridium et paraphysis.
16. Pilum calyptræ.
