IX 
L. — Lucerne and Zug. 
A. — Appenzell, St. Gall and Glarus. 
Z. — Zurich, Aargau and Thurgau. 
S. — Schaffhausen. 
Mount. — Mountain region, from 540 — 1100 meters. 
Subalp. — Subalpine region, from 1100—1500 m (limit of the 
beech). 
Alp. — Alpine region, from 1500—2400 m. 
High Alp. — High alpine or snow region, from 1860—2400 m. 
The indications: Subalp ., Alp. and High Alp. only refer 
to the chain of the Alps; unless the Jura is specially mentioned, 
the species in question is wanting in this range. On the other 
hand Mount, and Mount, and Subalp. are used in a general 
sense. 
f before the name of a species signifies that it is only found 
in a cultivated state in Switzerland. 
* before the name of a species signifies that it is not found within 
the Swiss borders, or that it is doubtful for this country 
or is hybrid. 
The numbers following the indications of locality show the 
months of the year, from 1 (January) to 12 (December), when 
the plants commence to flower; in Cryptogams the time at 
which the fruit is ripe. For example: 5 = May, 6 = June &c. 
The classes of the Linnean System. 
1. Plants with distinct flowers ..... 2 
— Plants without distinct flowers . . .Cl. 24. 
2. Flowers hermaphrodite ...... 8 
— Some, at least, of the flowers unisexual Cl. 21 — 23. 
3. Stamens neither united among themselves 
nor with the style ....... 4 
— Stamens united among themselves or with 
the style ...... Cl. 16 — 20. 
4. Two longer and two shorter, or four longer 
and two shorter stamens . . Cl. 14 — 15. 
— Stamens without these differences in length Cl. 1 — 13. 
Cl. 1. Monandria. 1 free sta in a hermaphrodite flower. 
Cl. 2. Diandria. 2 free stas in a hermaphrodite flower. 
Cl. 3. Triandria. 3 free stas in a hermaphrodite flower. 
