OCTANDRIA MONOGYNIA. Clarckia. 261 
Flores ex axillis superioribus, . solitarii, subsessiles, — 
magni, amoene purpurei. Calyx cnothere. Petala 
unguiculata, 3-partita, laciniis lateralibus divaricatis. 
Stamina 4: antheris linearibus, involutis: altera 4. 
duplo breviora: antheris castratis, subrotundis. Stylus 
. longitudine fere petalorum. Stigma eee luteum, 
4-partitum : laciniis subrotundis. 
338. OENOTHERA. - Gen. pl. 637. 
1.0. caule villoso scabro, foliis ovato-lanceolatis planis biennis. 
. dentatis, floribus terminalibus subspicatis sessilibus, 
staminibus corolla brevioribus.— Willd. sp. pl. 2. 
p. 306. 
Icon. Fl. dan. 446,. Alp. erot. t.324. 
Common in old fi d New England t to ) Caroli ia. d. 4 
June, July. v.v. JÉa€— 
I have frequently observed a ingali y in this plant, 
and it might be interesting to make further inquiry 
into its cause; it is, that in a dark night, when no 
objects can be distinguished at an inconsiderable di- 
stance, this plant when in full flower can be seen at 
a great distance, having a bright white appearance, 
Which probably may arise from some phosphoric pro- 
perties of the flowers. 
2. O. caule purpurascente muricato, foliis Hipéedlétis planis, — muricata. 
staminibus longitudine corolla. Willd. sp. bag 2. 
Icon. Murray com. gætt. AE 
In old fields de along fences : Pensylvania to Chidlina. 
d SA Aug. v.v. Flowers smaller than the first 
3. O. caule levi subvilloso, foliis POTAE den parviflora. 
staminibus corolla longioribus. Willd. sp. pl. * k 
306. : 
us Mil.ic.189.f. 1. Meerb. ic. 34 — a 
In fields and woods: Canada to Virginia; rare. E 
July. v.v. . 
4. O. caule glabriusculo ramoso, foliis ovato-lanceolatis pedibns 
glabris, staminibus declinatis. Willd. sp. pl. 2. p.306. ` 
In weeds ul fields of Carolina. Bartram. d. July. 
v.v. Flowers larger than any other of the North 
: American species, and of an agreeable scent. silia 
5.0. caule diffuso molliter pubescente, foliis ovali-oblon- sinuata. 
