BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 77 
recovered their growth. A form found on the eastern side of the 
island was noteworthy from the shiny and bright red-purple 
sparsely pubescent stem and branches which, with the subglabrate 
capsules, were viscid to the touch; the flowers and capsules were 
of medium size, the thin leaves lanceolate, with attenuate base and 
apex, the lowermost slender petioled. 
* OENOTHERA MURICATA L. 
Common, especially along shores, often in pure sand, but also 
in sandy and gravelly spots in all parts of theisland. First flowers 
July 8, 1912; flowering through September. 
Professor DeVries who, on his first visit to America, looked over 
some of my Nantucket and Long Island specimens of this Oenothera 
pronounced them to be essentially the same as the introduced 
American plant growing in Holland known to him as O. muricata 
L. Miss Vail has recorded (Carnegie Inst. Wash. Publ. No. 
81: 74) that ‘“‘O. muricata L. raised from seed received from 
Professor DeVries from the Holland sand dunes resembled these 
American plants but were not absolutely identical.” 
As compared with O. biennis this is a lower and more leafy- 
bracted plant with more numerous and ascending leaves of nar- 
rower form and thicker texture and less definitely repand denticu- 
late, the lower with oblanceolate tendency; the general pubescence 
is softer, denser and more appressed, the longer hairs tending to 
form a villous or even pilose investiture especially on the capsules. 
In O. biennis the sparser pubescence is harsher and more or less 
hirsute, the smaller hairs mostly erect and incurved; the seeds 
are considerably smaller than those of O. muricata. 
* OENOTHERA STRIGOSA (Rydb.) Mackenzie & Bush. 
On June 19, 1910, many plants of this western species were 
found scattered through a once cultivated field on the Cabot farm 
in Shimmo valley; they were in full flower and a few bore capsules 
already 2 cm. in length. Specimens collected agree closely with 
the types of O. strigosa in the Herbarium of the New York Botan- 
ical Garden. Doctor Rydberg, who made the comparison with 
me, concurs in the determination. The plant seems to be new 
to our eastern flora and must be supposed to have been recently 
introduced. It was perhaps only transient at the Cabot farm 
