OENOTHERA serrulata.
Savj-leaved OEnothera.
Natural Order. O n a g r a r iæ . Jussieu. • i *
OE N O T H E R A . Calyx tubulosus, cum ovario articulatus,
deciduus; limbo 4-partito, reflexo. Petala 4, summo tubo inserta.
Stamina 8, ibidem inserta, erecta aut declinata. 4re-
iAerte lineares, incumbentes. quadripartitum. Capsula
prismatica aut clavata, 4-locularis, loculicido-quadrivalvis, nuda.
Semina creberrima, nuda, affixa placentæ centrali, serius liberæ.
Herbæ, rarissime suffrutices. VoXm alterna, sæpius dentata,
sinuata, laciniata velpinnatifida. Flores axillares solitarii aut
terminales spicati. Corollæ flava, rarius aurantiaca aut purpurea.
Kunth synops. 3. p. 386.
CE. serrulata, caule suffruticoso ramoso adscendente, folns ob-
longo-linearibus serrulatis glabris subtus subpubescentibus,
petalis integris stamina superantibus, stigmatibus capitatis
subquadrilobis, capsula prismatica gracili sessili.
CEnothera serrulata. Nuttall. yen. a r ie rA . p. 246. Hook. exot.
flor. t. 140. Spreng. syst. veg. 2. p . 228.
Stem suffruticose at the base, much branched, spreading
: hranches slender, thickened upwards, ascending,
clothed with short incurved hairs. Leaves narrow,
sessile oblongly linear, acute, mucronate, sharply serrulate’
with fong slender teeth, smooth and glo ssy ;
under/eath slightly pubescent, narrowly attenuated
at the base. Flowers axillary, solitary sessile, of a
bright yellow colour. Calyx superior, before expansion
acutely 4- angled; afterwa,rds iunnel-form, ^-angled
4 -c le ft; the segments spreading or reflexed, oblong or
narrowly ovate, concave, sharply keeled at the back,
taper-pointed. Petals 4, inserted in the calyx, spread-
ng, oL va te , entire, or with slightly crenulate margins,
more or less crumpled and striate, about double tbe
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