POTENTIL'LATROMENTILLO-FORMO'SA. 
MR. tongue’s hybrid potentilla. 
Class. Order. 
ICOSANDUIA. POLYGYNIA. 
Natural Order. 
ROSACEiE. 
Hybrid 
Height. 
Flowers in 
Duration 
Originated 
orlg-in. 
6 inches. 
Jnne, Sept. 
Perennial. 
in 1834. 
No. 585. 
The derivation of the name Potentilla is explained 
under No. lo7. The trivial name is compounded 
of the names of the parent plants. 
The many beautiful hybrid plants now produced 
in our gardens by industrious cultivators are be- 
coming objects of attention, not only to the flori- 
culturist for their variety and attractions, but also 
to the scientific botanist and physiologist. The 
plant now under consideration was raised from seed 
of Potentilla formosa, fertilized by the pollen of 
Tormentilla reptans. It must be confessed that the 
genera Potentilla and Tormentilla, are very closely 
allied, still they possess characters which are more 
distinct than are those of numerous others. Here 
then, according as our genera are at present estab- 
lished, is an end of the belief that species of the 
same genus only will mingle their characters, by, 
hybridisation. We may refer to another well at- 
tested instance of seedlings being raised betw een two 
distinct genera — the Digitalis an<l Gloxinia, stated 
under Digitalis hybrida. No. 4()8 of the Botanic 
Garden. It is much to be regretted that botanists 
of leisure and ability should not, ere this, have iu- 
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