THE FIRST PART. 
Vii 
Clafs Polyadelphia, or Many-brotherhoods. St. John's Wort, 
a good Specimen of this Clafs. The Orders of Polyadelphia 
depend on the number of Anthers in each Flower. 67, An- 
thers and Stigmas the elfential parts of the Stamens and 
Piftils. 
L E C T U R E IV. 
Examination of Flotvers of different Chjfes. Claffes IQ, 20, 
21, and 22, explained. 
Page 68, Rules for the investigation of Flowers. Hippuris 
Vulgaris, remarkable for the fimplicity of it's Structure. 
6g, Specimens of flowers belonging to different claffes. 
70, Deep divifions of the Stigma of Crocus make the order 
to which it mould be referred doubtful to young Botaniftsj 
it's Fructification cannot be accurately examined without tak- 
ing the root out of the earth. Stamens of Plantago (Plantain), 
curioufly folded within the Corol. 71, Difficulty of invefti- 
gating the Umbel-bearing Plants. The terminating Flower of 
the Umbel determines the clafs to which the Flower belongs. 
Number of Stamens often varies in Flowers of the clafs Pen- 
tandria. More Flowers than one of the fame Plant mould be 
examined. 72, Umbelled Plants not proper fubjects to begin 
with. Large Flowers of (imple conduction mould be firft 
examined. Specimens of Plants belonging to different claffes. 
Clafs Enneaodria (Nine Stamens) contains only fix Genera. 
Only one Britifh fpecies of this clafs. 73, Lychnis Dioica 
puzzling to young Botanifts, being placed in the clafs Ten 
Stamens) a defect in the fyftem. Obviated by being noted 
for it's want of Piftils. Lythrum fubject to vary in it's number 
of Stamens j neceflity of examining many Flowers of the fame 
genus. 74, Marks of the Twelfth and Thirteenth Claffes.. 
Specimens of different Claffes and Orders, hoc depending on 
a A ths. 
