4 Rhodora [JANUARY 
beautiful color-form well worthy a place in the garden, with the 
sepals bright red-purple and the petals white, as in forma albiflorum. 
This is the form described from Lapland as Chamaenerium angusti- 
folium, var. spectabile by Simmons in 1907, by all means the most 
handsome color-form of the species. 
Briefly summarized, the above notes on the variations of Æ. angusti- 
folium which it seems practical to recognize may be stated as follows: 
A. Leaves long-attenuate at apex. B. 
B. Plant tall, 0.5-2 m. high: median cauline leaves 0.7-2 dm. long: mature 
inflorescences 1.7-7.5 dm. long. C. 
C. Median leaves 0.5-3.5 em. broad; the secondary nerves not prominent 
(except in plants from the most exposed habitats): inflorescences 
open, with small bracts or if leafy-bracted with the lower bracteal 
leaves at most 2.5 cm. broad. D. 
D. Petals purple or rose-color............. E. angustifolium (typical). 
D. Petals white. 
MN is. ees E. angustifolium, f. albiflorum. 
SMP WUE: Fis EAR E. angustifolium, f. spectabile. 
C. Median leaves 2-4.5 cm. broad; the secondary nerves very promi- 
nent beneath: inflorescences leafy-bracted, the lower bracteal 
ane 22a Om O o o aa a ee var. macrophyllum. 
B. Plant low, 1-5 dm. high: median cauline leaves 3-7 cm. long: mature 
inflorescences 0.4-1.3 dm. long.................. var. intermedium. 
A. Leaves merely acutish or bluntish.................. var. platyphyllum. 
E. ANGUSTIFOLIUM L. Sp. Pl. i. 347 (1753). Chamaenerion angusti- 
folium (L.) Scop. Fl. Carn. ed. 2, i. 271 (1772). E. spicatum Lam. FI. 
Fr. iii. 482 (1778).— In recent clearings, burned lands, damp ravines, 
etc., chiefly in salicious or sterile regions of the Canadian and Alleghe- 
nian zones. 
Forma ALBIFLORUM (Dumort.) Haussk. Mon. Gatt. Epil. 38 (1884). 
E. spicatum, B. leucanthemum Wender, Bot. Zeit. (1826) i. 356. E. spi- 
catum B. albiflorum Dumort. Fl. Belg. 89 (1827). E. angustifolium, B. 
canescens Wood, Class-book, 262 (1855). Chamaenerion angustifolium 
canescens Britton, Mem. Torr. Bot. Cl. v. 233 (1894).— Occasional 
throughout the range of the species. 
Forma spectabile (Simmons), n. comb. Chamaenerium angusti- 
folium, var. spectabile Simmons, Arkiv för Botanik, vi. no. 17, 14 
(1907).— Originally described from Lapland; known in America from 
QuEBEC: boggy spots, Lac Fortin, Table-top Mountain, Gaspé 
County, August 9 and 11, 1906, Fernald & Collins, no. 660; Flagstaff 
Peak, Mt. Albert, Gaspé County, July 23, 1906, Fernald & Collins, 
no. 670. 
Var. macrophyllum (Haussk.), n. comb. LF. angustifolium, f. 
macrophylla Haussk. Mon. Gatt. Epil. 38 (1884); Kurtz in Engler, 
Bot. Jahrb. xix. Heft. 4, 381 (1894).— In North America known only 
from Alaska and from the Magdalen Islands in the Gulf of St. Lawrence. 
The following specimens belong here. MAGDALEN IsLANDS: sand 
