Characters of the classes. 
53 
XVI. Senticos^. Corolla polypetalous, no pe- 
ricarpy, many feeds. 
1. Calyx monophyllous. 
2. Calyx polyphyllous. 
3. No calyx. 
XVII. Umbellat^e. Corolla pentapetalous, no 
pericarpy, two feeds. 
1. Involucra univerfal and partial. 
2. Involucra partial only. 
No involucrum. 
XVIII. Dumos^. No corolla, fruit a berry. 
XIX. ‘ PuTAMiNEiE. No corolla, fruit a capfuie 
or a ftrobil. 
1 . Flowers hermaphrodite. 
2. Flowers diclinous. 
XX. Holerace^. No corolla, nor pericarpy, 
calyx, if prefent, regular. 
1. Flowers hermaphrodite. 
2. Flowers diclinous. 
XXI. 'Gram iNA. Graffes. No corolla, nor pe- 
ricarpy, one feed, calyx irregular. 
^ 1 . Flowers hermaphrodite, one ftyle. 
2. Flowers hermaphrodite, two ftyles, calyx 
uniflorous. 
3. Flowers hermaphrodite, two ftyles, calyx con- 
taining more than one flower. 
4. Flowers diclinous. 
XXII. Muse I. Mofles. Flowers concealed, fruc- 
tifications on the ftem. 
XXIII. Filices. Ferns. Flowers concealed, 
frudfifications on the lower furface of the'leaf. 
XXIV. Alg^. Flags. Flowers concealed, fruc- 
tifications on the upper furface, or in the lubftance 
of the leaf. 
XXV. FyNGi. Muflirooms. Flowers concealed,- 
no leaves. 
THE 
