__ * The names of these two classes do not express their peculiar character $0 
184 LINNEAN SYSTEM. 
12. IcosanpRta....20 or more sta- ‘inna 
mens inserted into the calyx (pe- se mate Tay eer 
rigynous), ; 
13. Potyannprta,...20 or more sta- iferand 
mens inserted under the wart t taees Foote 
(bypogynous),*.......... pusaddcccessss oPPY- 
650. In the next 2 classes the stamens are of the same 
number as in two of the preceding classes, (tetrandria and 
hexandria) ; but they are of unequal length in each flower. 
Hence the names di (two), dynamia (superior), tetras (four), 
dynamia (superior), from the Greek numerals already ex- 
plained, and the Greek word dunamis (power.) 
14. oe eran 4 came, 2 long ¢ Digitalis purpurea, Pure 
and 2 short,.. ica i ple Foxglove. 
15. petccstesis, .-6 stamens, 4 | Cochlearia officinalis, 
long and 2 shorty............-..c0000+2.. |  Sourvy-grass. 
651. The stamens are united by their filaments into fasei- 
culi or bundles in the next 3 classes, which are characterized 
by the number of these fasciculi. This new character, the 
union of the stamens by the filaments, is expressed by the . 
termination adelphia, from the Greek word adelphos, a bro-— 
pa : 
16, Mosloartina; .-Stamens unit-} Althea officinalis, Marsh 
ed in 1 fasciculus or tube,......... a Mallow. 
17, DIADELPHIA,...stamens i Dolichos pruriens, ace 
: in 2 fasciculi,......., wetsere cea itch. 
18. ee stamens unit-) .. : : 
ed in 3 or more fasciculi,............ g Citrus Aurantium, Orange 
652. The next class includes those plants described in par- 
375, &c. and is named from two Greek words, sun (together), 
and genesis (growth), intended to indicate the union of the 
anthers. ‘The term Synanthere (anthers together) would be 
more expressive. 
"precisely as could be wished. satenee ee nent pment) ree 
In both cases there are twenty or more stamens, The situation cons 
__ the distinction, i. 
