76 BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 
EPILOBIUM LINEARE Muhl. 
Common in bogs. Plants six inches high June 27, 1912; first 
flowers Aug. 14, 1906; continues to bloom through September. 
* EpILOBIUM STRICTUM Muhl. 
Rare and local in bogs and wet mossy places in open ground. 
Watts Run bog, Shawaukemmo meadow, shore of Sachacha 
Pond—only a few plants at each locality. Plants 15 inches high 
June 15, 1908, and ten inches high July 1, 1912, but showing no 
flower buds; in flower and with mature fruit Sept. 19, 1899. 
EPILOBIUM COLORATUM Muhl. 
Rather common in low grounds or wet places. Plants several 
inches high June 28, 1912; observed in flower late in September. 
* EPILOBIUM ADENOCAULON Haussk. 
Not rare, occurring in low grounds or damp thickets. Tom 
Nevers Pond and swamp, Taupawshas Swamp, Shimmo, Coskaty. 
Freshly in flower Aug. 7, 1906, in flower and with mature fruit 
Aug. 30, 1904, some flowers Sept. 19, 1899. Plants of pronounced 
character were collected in Tom Nevers swamp, the leaves 6-9 
cm. long by 2-2.5 cm. broad. The flowers are commonly larger 
and much deeper in color than those of Epilobium coloratum. 
OENOTHERA BIENNIS L. 
Common in fields and open places, in thickets and woodland 
and as a weed in waste and in cultivated ground, flowering from 
midsummer through September. First flowers July 6, 1912. Its 
widely varying forms seem to hint at more than one species and 
appear to include crosses with Oenothera muricata. There are long 
pod forms and short pod forms that display marked contrasts. In 
the former the capsules are tapering linear and rather prominently 
quadrangular, becoming 4 cm. long and 4~5 mm. wide at the base; 
in the contrasted form they are commonly 2-3 cm. long and 5~7 mm. 
wide, less tapering and more abruptly contracted at the apex and 
with more rounded angles; in both forms the capsules may be either 
densely pubescent or glabrate. The flowers are commonly 4-5 cm: 
wide but are sometimes considerably smaller; the largest seen were 
6.5 cm. wide on plants that after having been partly cut down had 
