ADDITIONS, CORRECTIONS, ETC. 
761 
2. Jungermannia. Periauth tubular ; mouth contracted, dentate ; stipules 0 or pre- 
sent on the stem. 
2/8. Solenostoha. Perianth obovate, 5-plicate above, with a tubular beak. 
2. Fruit lateral. 
10. Adelanthus. Stems erect, nodding ; stipules 0. 
8. Chiloscyphus. Stems procumbent, stipulate. 
9. Psiloclada. Stems procumbent ; leaves and stipules deeply cleft. 
b. Perianth a descending fleshy hag. 
1. Fruit terminal. 
11/1. Tylimanthus. Stems erect or ascending ; leaves nearly entire ; stipules 0. 
12/2. Acrobolbus. Stems procumbent ; leaves 2-fid ; stipules small or 0. 
11/3. Lethocolea. Stems procumbent ; leaves entire; stipules 0. 
11/4. Balantiopsis. Stems procumbent, stipulate. 
2. Fruit lateral. 
11/5. Marsupidigm. Stems erect or ascending ; stipules 0. 
12. Saccogyna. Stems procumbent, stipulate. 
** Leaves vertical ; base crossing the stem transversely. 
a. Peria7ith none. 
1. Fruit terminal. 
1. Gymnomitriitm. 
b. Perianth leafy. 
1. Fruit terminal. 
16. Isotachis. Leaves and stipules nearly equal ; perianth tubular ; mouth connivent. 
6. Scapania. Leaves complicate ; stipules 0 ; perianth compressed in plane with 
leaves ; mouth truncate. 
7- Gottschea. Leaves with adherent lobe ; perianth overlaid by involucral leaves. 
2. Fruit lateral. 
15. Lembidium. Stipulate. Perianth from the lower part of stem, 3-gonous. 
*** Leaves incuhous ; base with the lowest angle on the under side of the stem. 
f Without an inferior lesser lobe. 
a. Perianth leafy. 
1. Fruit terminal. 
18. Sendtnera. 
2. Fruit lateral. 
18/1. Leperoma. Leaves and stipules deeply cleft ; calyptra adnate with the involucral 
leaves ; fruit near the top of the stem. 
13. Lepjdozia. Leaves and stipules usually deeply cleft; perianth near the base of the 
stem, 3-gonous. 
14. Mastigobryum. Leaves and stipules entire or with their apices truncate, dentate ; 
perianth in the lower part of the stem, 3-gonous. 
ff With an inferior lesser lobe (lobule). 
a. Lobule plane. 
1. Fruit terminal. 
20. Radula. Perianth compressed in plane with leaves ; mouth truncate ; stipules 0. 
