88 DIALYPETALOUS EXOGENS 



1. E. angUStifdlium, L. Stem simple; leaves alternate, 



lanceolate, entire ; flowers in a terminal virgate raceme, large and 



showy. 



NARROW-LEAVED EPILOBITJM. Great Willow-Herb. 



Stem 4 to 6 feet high. Leaves 3 to 5 inches long, subsessile. Raceme 3 to 6 or 8 

 inches long; flowers purplish lilac-color, on pedicels about half an inch in length. 

 Capsules 1% to 3 inches long, hoary. 

 Hob. Great Valley; Beaver run: rare. Fl. July. JV.Sept. 



Obs. Collected in 1837, by Mr. ALBERT TOWNSEND. The specific 

 name, given by LINNAEUS, is rather unfortunate, and calculated to 

 mislead the young Botanist, as the leaves are much broader, and 

 every way larger, than in some of the forms of E. palustre. The 

 plant, in fact, is quite pretty, with a large raceme of showy flow- 

 ers. 



52* E. COlorsitlllli, Muhl. Stem much branched; leaves mostly 



opposite, lanceolate, serrulate, purple- veined ; flowers axillary, 



small. 



COLORED EPILOBIUM. Willow-herb. 



Stem 2 to 3 feet high, the upper part, and branches, often marked with pubes- 

 cent lines decurrent from the base of the petioles. Leaves 2 to 5 or 6 inches long, 

 mostly obtuse at base; petioles very short. Flowers purplish, sometimes nearly 

 white, with purple spots, the petals bifid or emarginate. Capsule 2 to near 3 inches 

 long, slender, pubescent ; valves keeled. 

 Hob. Swampy thickets, and low grounds r frequent. Fl. July. Fr. Sept. 



3. E. palustre, L. Stem slender, bushy at summit, hoary; 

 leaves lanceolate, or lance-linear, often entire with revolute mar- 

 gins. 



E. squamatum, Nutt. $ Fl. Cestr. ed. 2. p. 239. 

 MARSH EPILOBIUM. 



Stem 12 to 18 inches high, rigid ; branches pubescent. Leaves an inch or inch 

 and half in length, often nearly linear and sessile. Flowers pale purple, or nearly 

 white, few and small. Capsule an inch or inch and half long, very slender, hoary- 

 pubescent while young. 

 Hob. Swampy, low grounds : not common. Fl. Aug. Fr. Octo. 



Obs. The linear-leaved variety is becoming rare. 



131. <EtfOTHE v RA, L. 



[Gr. Oinos, wine, and Thera, a 'chase ; application obscure.] 

 Calyx-tube longer than the ovary. Petals mostly obcordate. An- 

 thers linear, incumbent; pollen viscid. Capsule oblong, or clavate. 

 Seeds not comose. Leaves alternate. 



1. CE. foieimis, L. Stem stout, green ; leaves ovate-lanceolate, 

 repand-dentate ; capsule oblong, obtusely 4-angled, sub-sessile. 

 BIENNIAL OENOTHERA. Evening Primrose. 



Stem 3 to 5 or 6 feet high, branched, often rough-haired. Leaves 2 to 6 inches 

 long, the lower ones on short petioles, the upper ones sessile. Flmvers yellow, 

 large, in a terminal leafy or bracteate spike. Calyx colored ; tube cylindrical, 1 to 

 2 inches in length ; limb dividing, reflected, the segments partially cohering, and 

 turned to one side; the limb, and tube above the ovary, caducous. Capsule an 

 inch to an inch and half long. 



