PTYCHOMITRIUM DRUMMONDII, Br. & Sch.
Tab. 40.
P. incurvo simillimum; differt tamen statura paulum majore, foliis patentioribus magis acutis apice obtuse dentato-serratis, peristomii dentibus profunde infra capsulæ orificium insertis latioribus brevioribus crebrius articulatis externa facie trabeculatis apice irregulariter fissis per paria approximatis, annuli absentia, sporis majoribus, etc.
Ptychomitrium Drummondii, (Hook. & Wils.,) Br. & Sch.; Sulliv. Mosses U. States, p. 36.
Grimmia Drummondii, Hook. & Wils. in Hook. Jour. Bot. 1841, p. 90, t. 3.
Brachysteleum Drummondii, C. Müll. Synop. Musc. 1, p. 770.
Hab. On trees, Southern States, near the coast.—Not uncommon.
TAB. 40.—Ptychomitrium Drummondii.
1 . Plantæ naturali magnitudine.
2. Planta fertilis.
3. 4, 5. Folia caulina.
6. Sectio transversalis folii.
7. Areolatio folii baseos.
8. Eadem folii apicis.
9. Capsula operculata.
10. Dentes peristomii.
11. Dens peristomii verticaliter sectus.
12. Apex ejusdem.
13. Calyptra.
14. Flos masculus.
15. Folium perigoniale.
16. Antheridium cum paraphysi.
