66 Rhodora [APRIL 
I. Nutlets dull black, with somewhat tuberculate, flattish ` 
e sce ERR SAW EESTI EP RE I 10. S. Brittonii. 
A. Nutlets not winged except rarely and in immature condition 
J. Nutlets merely rugose or finely granulate-papillate K. 
K. Nutlets canary yellow L. 
L. Nutlets merely scabridulous, 7. e., with inconspicuous 
BENE oma ys. epee k ca ee 1. S. epilobiifolia. 
L. Nutlets with minute, wart-like papillae........ 3. S. lateriflora. 
K. Nutlets black or brown, finely granulate-papillate....12. S. resinosa. 
J. Nutlets with conspicuous papillae M. 
M. Nutlets yellowish or orange..................... 4. S. Bolanderi. 
M. Nutlets brown or black N. 
N. Nutlets with conical, more or less sharp-pointed 
papillae O. 
O. Nutlets with very slender elongate papillae... .21. S. saxatilis. 
O. Nutlets with the papillae short, broad at base, 
abruptly pointed....................0000: 20. S. versicolor. 
Nore: S. versicolor frequently has the nutlets orange.) 
N. Nutlets with tuberous, flattened, obtuse papillae P. 
P. Nutlets strikingly rosulate in appearance... .16. S. integrifolia. 
P. Nutlets not conspicuously rosulate Q. 
Q. Nutlets with thin, laminate papillae...... 13. S. Drummondii. 
Q. Nutlets with thick papillae R. 
R. Nutlets with irregularly disposed muriculate 
BAHDIABI osse Uu uL a 5. S. tuberosa. 
R. Nutlets with papillae regularly disposed S. 
S. Nutlets about 2 mm. in diameter.......... 19. S. serrata. 
S. Nutlets 1-1.5 mm. in diameter............ 15. S. pilosa. 
J. Nutlets with short, truncate papillae T. 
T: Noto DBE a E stv a piece Gale ce» L ea s 14. Š. cardiophylla. 
T. Nutlets brownish U. 
U. Nutlets with processes flat on top, frequently with 
median depression.......................... 18. S. canescens. 
U. Nutlets with papillae rounded on top, smooth....17. S. Bushii. 
(Nore: S. canescens might be looked for here; the nut- 
lets are light brown or olive-green in color.) 
1. Š. EPILOBIIFOLIA Hamilton. Fria. 6. Stem simple or branched, 
erect, 1.5-8 dm. high, smooth or somewhat pubescent: leaves ovate 
or oblong-lanceolate, acuminate, sessile or subsessile, serrate, fre- 
quently purplish underneath, 1.5-6 cm. long; the upper gradually 
diminishing into the bracts: flowers solitary in the axils of the upper 
leaves; corolla with pale tube and violet-blue lips and galea, rarely 
pink or white, 1.5-2.5 em. long; lower lip somewhat protruding: 
achenes yellow, merely scabridulous or slightly pebbled, about 1.5 
mm. in diameter.—Monog. 32 (1832). S. galericulata of American 
authors, not L.—Newfoundland to British Columbia and south- 
ward to Arizona. The following specimens are representative. 
NEWFOUNDLAND: M. L. Fernald & K. M. Wiegand, nos. 3930, 3929 
and 6107: B. L. Robinson & H. von Schrenk, no. 103. QuEBEc: H. 
St. John, no. 90694; J. Macoun, no. 68667. Nova Scotia: C. D. 
Howe & W. F. Lang, no. 529; M. L. Fernald & B. Long, no. 22363. 
New HawrsuinE: C. C. Stewart, no. 4408. Massacnuusetts: J. M. 
Greenman, no. 2079. New York: 0. P. Phelps, no. 805. ONTARIO: 
J. Macoun, no. 20850. Micuican: J. H. Ehlers, no. 125. INDIANA: 
