OCTANDRIA. MONOGYNIA. 245 



560. (ENOTHERA. L, (Tiee-piimrose.) 



Calix tubulous; 4-cleft, segments deflected, 

 deciduous. Petals 4» inserted upon the calix. 

 Stigma 4-cleft. Capsule 4-cened, 4-valvcd, in- 

 ferior. Seeds naked, affixed to a central 4-sided 

 receptacle. 



Herbaceous, biennial, annual and perennial; leaves al- 

 ternate; flowers solitary, axillary, at length elongated into 

 a spike, generally yellow, rarely white or violaceous, ex- 

 })anding about sun-set. (Leaves in most of the species, 

 when sufficiently diaphanous, linearly punctate.) 

 § I. Fruit elongated, sessi'i-. 



Species. I. VE:. biennis. (Tree-Prinirose.) zy. v. On the 

 banks of the Missouri up to Fort Mandan; the flowers are, 

 however, smaller than usual, and the leaves somewhat 

 glaucous. 2. muricata. 3. parv{flora. 4. grandijlora. 5. si- 

 nuata, jS. minima. Ph. A mere variety of this species, and 

 not uncommon in New-Jersey. 



6. * humifiisa. Stem prostrate, branching, villous; leaves 

 linear-lanceolate, subdentate or entire, silky villous as well 

 as the calix; flowers axillary; tube of the calix a little longer 

 than the germ; petals obcordatc about the length of the 

 anthersr, capsule prismatic. Hab. Near Cumberland isl- 

 and, Florida, on the sea-coast. — Ur. Baldwyn. Resembles 

 CE. simiata somewhat in general habit; but is soft and 

 silky, not hairy as that species; the flowers also seem to 

 have been white; the leaves are an inch long and scarcely 

 two lines wide, irregularly and remotely toothed, lower 

 leaves apparently always entire; flowers small 



7. * albicaulis. Perennial; stem simple, efect, white and 

 polished, upper part branching; leaves linear-sublanceo- 

 late, rarely subserrulate, under side a little villous; flowers 

 axillary, middle-sized, white; capsule prismatic; petals 

 entire.— (E. olbicaidis. Fras. Catal. 1813. Pursh's sy- 

 nonym wrong, 2. p. 734. See the Herbarium of A. B. 

 LaiTibert, esq. Hab. From the river Platte to the North- 

 ern Andes. Flowering in July and August. Stem about 

 3 feet high, calix somewhat villous; capsule about an inch 

 long. 



8. * pijmatifda. Minutely pubescent; stem lev - ;k1 de- 

 cumbent; radical leaves nearly entire, stem leaves pnna- 

 tifid, segments linear and acute; flowers few, axillary, 

 large and white; petals obcordate. and diiiterl. much 

 longer than the stamina; style filiform, very slender, stig- 

 mas filiform and divaricate as long as the anthers!} cap- 



y 2 



