——— 
a 
_ nearly glabrous, 
( 3764 ) 
CENOTHERA BIFRONS. HEART-LEAVED 
EvenING-PRIMROSE. 
Class and Order. 
OcranpriA Monoeynia. 
( Nat. Ord.—Onacrariz. ) 
Generic Character. 
Calyx 4-fidus tubulosus. Petala 4, calyci inserta. Cap- 
sula 4-locularis, 4-valvis, infera. Semina comosa. 
Specific Character and Synonsim. 
(Enornera bifrons ; erectiuscula ramosa parce pilosa, foliis 
semiamplexantibus subdentatis inferioribus ovatis acu- 
minatis superioribus (seu bracteis) exacte cordatis, 
floribus inter majores (flavis), tubo calycino longis- 
simo, petalis plicatilibus, capsula (immatura) cylin- 
dracea sulcata pilosa. 
(Enotuera bifrons. Don in Sw. Fl. Gard. v. 4. p. 386. 
Another and very distinct species of Evening Primrose, 
discovered by the late Mr. Drummonp in Texas, and intro- 
duced to our gardens, is that here figured. It may be at 
leaves, of which the 
once known by its semiamplexicaul 
upper, gradually passing into bracteas, are remarkably 
broad and exactly cordate. It is quite hardy, and a very 
free flowerer, each panicle, and, indeed, branch of a panicle, 
bearing a great number of buds, which open in succession. 
With us, in the Glasgow Botanic Garden, it has flowered in 
August and September, and bids fair to continue blossom- 
ing till the frosts destroy the plant. 
Descr. Annual? Stems nearly erect, rounded, slightly 
hairy, green, often tinged with purple. Leaves alternate, 
semiamplexicaul, the lower ones ovate, 
acuminate, 
