[ 489 J 
Sprr&A TRIFOLIATA. ‘THREE-LEAVED 
 «*SPIREA. peo : 
Clafs and Order. 
~Tcosanprta PEenTracyNtia. 
Generic Chara@er. 
: Cal. g-fidus. Petala 5. Capf. poly fpermz. 
Specific Charaéter and Synonyms. 
SPIR AA irifoliata foliis ternatis ferratis fubequalibus, floribus _ 
fubpaniculatis. Sp. Plant. 702. : ieiee 
ULMARIA major, trifolia, flore amplo pentapetalo, virgini- 
ana. Pluk. alm. 393. t. 236. f.5. Raii Suppl. 330-. 
ULMARIA virginiana trifolia, floribus candidis amplis longis — 
 etacutis, Mori/. Hi. 3. p. 323. 
abies” 
To this genus both the flower-garden and fhrubbery are 
indebted for fome of their chief ornaments. Of the hardy 
herbaceous fpecies the trifoliata is confidered as one of the 
moft elegant ; when it grows in perfeétion it certainly is a moft 
deleétable plant. = = 
It is a native of North America, flowers in June and Jaly, 
and was cultivated by Mr. Mitter, in1758. Ait. Kew. 
_ Being a plant much coveted, increafing but little, propagated 
with difficulty, and liable to be loft unlefs planted ina foil and — 
fituation highly favourable to it, it is fearce in the gardens 
about London. = =. : 
It is ufually increafed by parting its roots; poffibly thefe 
might grow when made cuttings of. Muvzer fays it is propa- 
gated by feeds, which fhould be fown on a fhady border, foon — 
after they are ripe; for if they are fown in the fpring, the 
plants will not come up till the year after, and many times fails 
they will require to be very carefully weeded and attended to. 
The beft fituation for this plant is a North border; it loves — 
moilture, and fhould be planted in light bog or peat-earth, or 2 
_ mixture of itanda‘purehazelloam. i 
